Firetube Boilers and Accessories

America’s Boiler Company
Firetube
Boilers
and
Accessories

Contents
PRODUCT PAGE
Series 3 Packaged Firetube Boiler.................................................................................................................. 3
Series 3 Shock Proof Boiler........................................................................................................................... 9
Series 3 Packaged Firetube Boiler “Ohio Special”......................................................................................... 11
Anticipated Efficiencies................................................................................................................................. 13
Wetback vs. Hard Refractory Dryback Design.............................................................................................. 15
Series 4S 4-Pass Wetback Scotch Boiler..................................................................................................... 17
Low Nox Boiler............................................................................................................................................ 21
Series 4F Forced Draft Firebox Boiler........................................................................................................... 23
Series 4F-40 ................................................................................................................................................ 27
Series 4F-45 ................................................................................................................................................ 29
Series 4F-50 ................................................................................................................................................ 31
Series 4F Forced Draft Firetube Boiler “Ohio Special” ................................................................................. 33
Series 4N Natural Draft Firebox Boiler ......................................................................................................... 35
Series 4NP Natural Draft Firebox Boiler ....................................................................................................... 43
C Series Compact Package Boiler ................................................................................................................ 45
Component Summary Information .............................................................................................................. 49
Chemical Feed System ................................................................................................................................ 52
Bypass and Shot Feed Systems .................................................................................................................. 54
Boiler Feedwater System ............................................................................................................................ 56
Condensate Return System ........................................................................................................................ 57
Blowdown Heat Recovery System ............................................................................................................... 58
Bottom Blowdown Tank .............................................................................................................................. 60
Flash Separator ........................................................................................................................................... 62
Bottom Blowdown Separator ...................................................................................................................... 64
Conductivity Controller ............................................................................................................................... 66
Water Softener Systems BS & BP ............................................................................................................... 68
Horizontal and Integral Deaerators .............................................................................................................. 70
Engineering and Application Data Index ...................................................................................................... 73

Series 3
Packaged Firetube Boiler

Series 3 - Packaged Firetube Boiler
Save Thousands Of Dollars
Over The Life Of Your Boiler
Long-term energy and maintenance efficiencies are the
focus of Burnham quality engineering. When choosing
a boiler, it’s a good idea to select a product with these
features in order to reduce enormous hidden costs down
the road. Review our wetback versus dryback literature for
cost savings.
Boiler Costs Is Not Jus A First Year Proposition
With any ordinary boiler, expenses such as fuel,
maintenance, and repair costs can escalate as the years
go on. Burnham packaged boilers are designed to diminish
these significant expenditures.
Burnham’s High Life-Cycle Efficiency
While most competitive boilers can give fuel-to-steam
efficiencies of 80% or over—when they’re new—how
consistently can they be expected to maintain this level
of operation? Burnham wetback boiler performance will
not drop due to deteriorating rear refractory, leaking door
baffles and seals, and heat-stressed rear tube sheet
as can happen with some drybacks. Easy access is a
necessity for those with heavy refractory, since they need
frequent and expert maintenance.
The Burnham Wetback Saves
Big Money On Maintenance
Over the life of a dryback, brittle refractory baffling and
rear door gasketing will require continuous monitoring,
maintenance, and replacement, costing thousands upon
thousands of dollars. These built-in maintenance costs can
eventually equal or exceed the original cost of the boiler.
As refractory deteriorates, leaking hot gas causes boiler
efficiency to drop until the condition is noticed and the
repairs can be made. Expensive flue temperature alarms
are offered with some drybacks to monitor this dangerous
and costly potentiality. The rear door itself can become
heat-distorted, requiring an expensive replacement. In
addition, boiler downtime during repairs can mean crippling
losses.
This waste of time and money is eliminated with the
Burnham Wetback. The actively functional water jacket
eliminates the need for: refractory wall, rear door, rear
door inspection and sealing, door swing space, and flue
temperature alarm. These costly maintenance headaches
are gone, while boiler performance is increased. Burnham
has only a small, inexpensive refractory area in the burner
area, for burner mounting. The rear access door liner is a
ceramic fiber insert that contains no refractory.
The furnace and rear turnaround area are cool running, fully
wetbacked radiant heat transfer surfaces. They promote good
internal water circulation and rapid heat absorption. There is no
need for the forced internal circulation pumps often specified to
cool the rear tube-sheets and drybacks.
The Burnham Wetback Is Built To Last
Typical dryback boilers have a common rear tubesheet that
expands and contracts at different rates adjacent to each
tube pass, stressing tube ends and increasing the likelihood
of leaks. Additionally, the heavy refractory used in some
drybacks reflects intense heat to the rear tube ends and tube
sheet, accelerating their deterioration. In attempts to stop
leaking, the rear ends of tubes have sometimes been welded.
Cleaning or tube replacement involves opening both the front
and rear covers and resealing them when the job is done.
Usually, if tubes have been welded at the ends, the welds must
be burned out, the tube sheet repaired (or a new segment
welded in) and the new tubes welded.
These costly expenditures are not an issue with the Burnham
Scotch Marine: separate rear tube sheets from each pass
to expand and contract at its own rate without tube-to-sheet
stress. Tubes are rolled and flared in low-pressure units; and
rolled, flared and beaded in high-pressure units. No welding
of tubes is permitted, nor is it necessary. Any eventual tube
replacement is simply a mechanical operation, no welding
involved. The end result is less cost and less headache.

Boiler
Model
Shell
Diam.
Series 3 - Ratings and Data
Gross Output Net Rating
BHP MBH
LBS/
HR
Steam
MBH
Steam
Sq. Ft.
Water,
MBH
Heating
Surface
Sq.
Ft.
F.S.
Sq.
Ft.
W.S.
Firing Rate
Gas,
MBH
Oil,
GPH*
Furn.
Vol.,
Cu.
Ft.
Water Content
Lbs.
Steam
Lbs.
Water
Approx. Wt.
Dry, Lbs.
0 8 0 1, 9 1, 80 1,011 , 11 1,16 00 0 1,67 1 /11 1 .8 1,760 ,18 ,700 , 00
0 8 0 1,67 1,7 1, 90 , 76 1, 6 0 80 ,09 1 /1 17.1 , 0 .701 , 00 ,700
60 8 60 ,009 ,070 1, 60 6, 99 1,7 7 00 , 00 18/17 19. ,76 , ,700 , 00
70 70 , , 1 1,819 7, 80 ,0 7 0 90 ,9 0 1/ 0 7.8 , 8 ,160 , 00 6, 00
80 80 ,678 ,760 ,079 8,66 , 9 00 , 8 / 0. ,67 ,6 1 ,900 6,700
90 90 ,01 ,10 , 9 9,7 7 ,6 0 0 00 ,766 7/ .0 ,060 ,1 6, 00 7, 00
100 100 , 8 , 0 , 99 10,8 0 ,911 00 ,18 0/ 8 .8 , ,711 6,900 7,700
1 66 1 ,18 , 1 , 8 1 , ,6 8 6 69 , 0 8/ 1.9 , 8 6,67 8,700 9, 00
1 0 66 1 0 ,0 1 ,17 ,898 16, , 66 7 0 8 6, 76 / 7.7 6,660 7,9 7 9,700 10,600
17 66 17 ,8 8 6,0 0 , 8 18,9 0 ,09 87 970 7, / 9 .1 7,7 8 9, 10,900 11,600
00 66 00 6,69 6,900 ,198 1,6 8 ,8 1,000 1,110 8, 69 60/ 6 8.8 8,8 9 10, 19 1 , 00 1 , 00
0 78 0 8, 69 8,6 6, 98 7,07 7, 77 1, 0 1, 60 10, 61 7 /70 86.6 11,17 1 ,98 1 , 00 18,600
00 78 00 10,0 10, 0 7,797 , 89 8,7 1, 00 1,6 0 1 , 00 90/8 99.1 1 , 1 16,6 9 18,100 1, 00
0 90 0 11,716 1 ,07 9,096 7,901 10,188 1,7 0 1,900 1 ,6 10 /98 11 . 1 , 9 19, 0 1,000 ,700
00 90 00 1 , 90 1 ,800 10, 96 , 17 11,6 ,000 ,17 16,7 8 1 0/11 1 .7 16,76 ,1 , 00 6,100
00 10 00 16,7 8 17, 0 1 ,99 ,1 7 1 , , 00 ,71 0,9 1 0/1 0 1 .0 18, 1 ,788 7, 00 0,600
600 10 600 0,08 0,700 1 , 9 6 ,9 7 17, 6 ,000 , 60 ,106 180/168 17 . ,1 8 8, 81 1, 00 , 00
700 10 700 , ,1 0 18,19 7 ,80 0, 77 , 00 ,80 9, 19 10/196 19 .8 ,767 ,00 ,700 9,700
800 108 800 6,780 7,600 0,79 86,6 , 87 ,000 , 9 , 7 0/ 0 . ,9 ,76 ,900 ,900
900 11 900 0,1 8 , 17 , 00 97,61 N/A , 00 ,90 7,660 69/ 78 0,89 N/A 7,800 6,600
1000 1 1,000 , 76 , 00 ,990 108, 9 N/A ,000 , 0 1,8 6 00/ 80 09 , 7 N/A 1,600 10 , 00
Note: Dimensions and Data are Not for Construction Purposes and are Subject to Change without Notice
15-30
PSI
150
PSI

• Large, fully waterbacked furnace tube assures
complete combustion and heat absorption
without flame impingement.
• Three gas passes extract maximum usable heat
from the fuel while maintaining optimum flow for
forced draft firing.
• Fully waterbacked reversing chamber effectively
absorbs radiant heat into the water,
keeping tube ends and rear of
boiler cooler than those of
hot-running drybacks.
Front View
• Ready access to tubes through rugged front door and rear covers
makes routine cleaning easier and less costly than with drybacks.
• Burner does not have to be disturbed.
• No inner air baffle door to contend with.
• Unlike dryback boilers, securing the doors on a Burnham wetback boiler
requires no specialized skills or expensive repair materials. It is a simple
process which can be done with in-house personnel and performed with
minimal downtime.
• No delicate expensive baffle tiles or door seals to replace.
6
Rear View

It All Adds Up To Significant Cost-Performance Advantage.
What do all these features and specifications mean? More
savings for you! Our Packaged Wetback Firetube boilers are
designed for long-term efficiency and economical operation,
making Burnham your cost-performance leader!
The Series 3 matches burner to boiler, providing a fuelefficient,
low-maintenance package. Maintenance costs
can be further controlled in your boiler room with optional
accessories. Such options include state-of-the-art annunciator
systems, custom-designed to monitor all boiler and burner
interlocks vital to your specific installation. They provide instant
readouts of both normal and abnormal operating conditions.
These features will pinpoint the cause of unscheduled
shutdowns; reducing maintenance time and skill required.
7
• Forced-draft firing with oil (No. 2, 4, 5, or 6),
gas or combination gas/oil
• Low or high pressure steam or water
• Highly efficient three-pass design
• Fully waterbacked primary heating surfaces
• Separate rear tube sheets for longer service life
• Wetback design allows easy front and rear access
• No expensive refractory or door replacement as
with some drybacks.

Series 3 — Standard Equipment
Boiler:
Three pass full wetback, packaged firetube type, constructed
in accordance with requirements of the ASME Code Section
IV for 30 psi and 125 psi water or 15 psi steam; Section I
for higher pressure steam. All units are registered with the
National Board.
Boiler tubes are expanded and flared in low pressure boilers;
expanded and beaded in high pressure boilers. Turbulator
baffles are not used in tubes. Separate second and third pass
rear tube sheets allow safe expansion and contraction.
Waterbacked rear turnaround promotes rapid internal
circulation and reduces gas temperatures at entrance to
second pass, reducing tube end stress.
Easy opening hinged, insulated front flue doors with
lightweight closure provide full access to all tubes. A 16inch
diameter bolted rear access door with observation port
provides access to the boiler furnace. Rear tube access is
provided by removing light weight gasketed door(s) installed
in the rear smokebox. No elaborate seals are used.
A manhole is furnished as standard on water and low
pressure steam boilers sizes 3-125 and larger; on high
pressure steam boilers sizes 3-70 and larger.
Handhole washouts are provided for easy inspection and
cleaning of waterside surfaces.
All steam boilers provided with a dry pan to ensure dry steam.
A feedwater diffuser is provided on high pressure boilers. All
water boilers are equipped with a dip tube at supply outlet
and diffuser at return inlet.
The round flanged vertical smoke outlet is equipped with a
locking quadrant damper. All boilers are provided with an
enameled steel jacket over 2 inches of fiberglass insulation,
and lifting lugs.
The boiler is mounted on a heavy duty structural steel base
with extended skid and burner platform for protection of the
burner during shipment and rigging.
Standard Trim and Controls:
Steam: 157 pump control/low water cut-off with alarm
contacts–piped with quick opening blowoff valve. Gauge
glass set with hand-operated and try cocks. Steam pressure
gauge—4 1/2 inch dial on sizes 100 hp and smaller, 6
inch dial on larger sizes. L404C manual reset high limit
pressuretrol and appropriate firing rate control when required.
Manual reset probe auxiliary low water cut-off.
ASME side outlet safety valve(s).
Water: 63M manual reset low water cut-off with 30 psi
units, 150 low water cut-off with higher pressure units–piped
with quick opening blowoff valve. Combination pressure/
temperature gauge–3 1/2 inch dial on 100 hp and smaller. On
larger sizes a 6 inch combination pressure/altitude gauge and
5 inch dial temperature gauge. L4006A operating aquastat
and L4006E manual reset high limit aquastat and appropriate
firing rate control when required.
ASME side outlet safety valve(s).
Burner Equipment:
Burner mounts to front head of boiler with no elaborate seals.
Factory packaged units available with forced draft burners for all
commonly used fuels–gas, all grades of oil–No. 2 through No.
6–and combination gas/oil. Choice of pressure or air atomizing
burners for No. 2 oil–air atomizing on heavy oil. Gas burners are
available for either natural or LP gas.
Refer to burner data sheets for standard burner equipment and
operating sequence.
Accessories and Optional Equipment:
Accessories and optional equipment available at extra cost,
including, but not limited to:
• Solid-state annunciators
• Alternate or additional water level controls or low water cut-offs
• Built-in tankless heater coils—low-pressure boilers only
• Motorized or pneumatic feed valves
• Surface skimmers and blowoff valves
• Bottom blowdown valves and drain valves
• Feed stop and check valves
• Sequence draft controls
• Lead/lag sequencing systems
• Boiler Feed systems
• Low NOx burners
• Deaerators
• Water Softeners
• Chemical Feed systems
• Blowdown systems
• Sample Coolers
8
©2009 Burnham Commercial - Lancaster, PA
Phone: 1-888-791-3790
www.burnhamcommercial.com

Series 3
Shock Proof Boiler
Eliminate any thermal shock concerns with a Series 3-SP Shock Proof hot water boiler package.
Our low pressure, 15 psi steam boiler is equipped with a full capacity coil type
heat exchanger capable of 125 psi maximum water pressure.
9

Eliminate Thermal Shock…
Eliminate any thermal shock concerns with our Series -SP Shock
Proof hot water boiler package. This boiler design uses our reliable
Series that incorporates a high steam space volume that can
easily accommodate the industries largest full capacity coil. The
Series wetback design and low volumetric furnace release
rates allow easy firing and a prolonged boiler life. When properly
commissioned and maintained, your shock -proof packaged boiler
will last for many years.
Shock Proof Features
Ratings and Data
Shock Proof Benefits
• Specially designed heat exchanger tubes which are highly resistant
to corrosion and erosion.
• Specially constructed head
• Flanged supply and return
• Coil trim package included, consists of inlet and outlet pressure
gauges, inlet and outlet thermometers and coil side safety valves.
• Equipped with a full capacity coil type heat exchanger designed for
1 psi maximum water pressure.
Performance criteria based on 10 psi boiler operating pressure
Flanges orientation may be horizontal, as illustrated, or vertical. Consult factory.
• No steam side water make up, no steam side
accessories are required.
• There is only one initial steam side water treatment required.
Since the steam side is sealed, expensive maintenance hours,
auxiliary equipment and chemicals are eliminated. A clean steam
side will make your boiler run more efficiently.
• The hot system water flows only through the tubes of the heat
exchanger eliminating thermal stresses and hot water maintenance
issues on the boiler side.
Model Number 3L125SP 3L150SP 3L200SP 3L250SP 3L300SP 3L350SP 3L400SP 3L500SP 3L600SP 3L800SP
Output @ Coil Nozzle, MBH, 4,184 5,021 6,695 8,369 10,043 11,716 13,390 16,738 20,085 26,780
GPM @ 20°F Delta T/180°F/200°F 420 503 670 840 1,008 1,180 1,340 1,680 2,015 2,755
Delta P thru coil at above flow rate, PSI 5 5 5 5 5 5 5 5 5 5
Head Flange Size, 150# ANSI 4” 4” 5” 6” 6” 6” 8” 8” 8” 8”
10
Lancaster, PA 17601
Phone: 888-791- 790
www.burnhamcommercial.com

Series 3 Packaged Firetube Boiler — “Ohio Special”
Three pass full wetback, packaged firetube, constructed in
accordance with requirements of the ASME code, section IV
for 1 -psi steam; Section 1 for higher pressure steam. All units
are registered with the National Board.
Boiler tubes are expanded and flared in low-pressure boilers;
expanded and beaded in high pressure boilers. Separate
second and third pass rear tube sheets allow safe expansion
and contraction.
Waterbacked rear turnaround promotes rapid internal
circulation and reduces gas temperatures at entrance to
second pass, reducing tube end stress.
Easy opening hinged, insulated front flue doors with bolted
closure provide full access to all tubes. A 16-inch diameter
bolted rear access door with observation port provides access
to the boiler furnace. Removing lightweight gasketed door(s)
installed on the rear smokebox provides rear tube access. No
elaborate seals are used. A manhole is furnished as standard
on all Ohio Special Boilers, 100 through hp. Handhole
washouts are provided for easy inspection and cleaning of
waterside surfaces.
All steam boilers are provided with a dry pan to ensure
drysteam. A feedwater diffuser is provided on high-pressure
boilers.
The round-flanged vertical smoke outlet is equipped with a
locking quadrant damper. All boilers are provided with an
enameled steel jacket over 2 inches of fiberglass insulation
and lifting lugs.
Ratings and Data
Shell Diameter
Ratings Gross Output - BHP
Gross Output - MBH
Gross Output - LBS/HR
Net Rating - MBH
Net Rating - Sq. Ft.
Safety Valve (15 PSIG) - LBS/HR
Safety Valve (150 PSIG) - LBS/HR
Heating Surface - Sq. Ft.
Fireside
Waterside
Firetubes Number
Diameter - Inches
Furnace Volume - Cu. Ft.
Diameter - Inches
Firing Rate 100 BTU Gas - MBH
140 MBTU/Gal. Oil - GPH
150 MBTU/Gal. Oil - GPH
11
The boiler is mounted on a heavy-duty structural steel base
with extended skid and burner platform for protection of the
burner during shipment and rigging.
Standard Trim and Controls
1 7 pump control/low water cut-off with alarm, contactspiped
with quick opening blowoff valve. Gauge glass set
with hand operated gauge and tri-cocks. Steam pressure
gauge: -1/ inch dial on 100 HP, 6 inch dial on larger sizes.
L 0 A operating pressuretrol, L 0 C manual reset high limit
pressuretrol and appropriate firing rate control when required.
Manual reset probe auxiliary low water cut-off. ASME side
outlet safety valve(s).
100X 125X 150X 175X 200X 225X
100
, 8
, 0
, 99
10,8 9
, 0
,906
8
8
6
.
1
,18
, 1
, 9
1 , 6
, 1
,88
8
8
6
.
1 0
,0 1
,17
,898
16,
,17
,8 8
8
8
6
.
17
,8 8
6,0 7
, 8
18,9 1
6,0 7
6,8
8
8
6
.
00
6,69
6,900
,198
1,6 8
6,900
7,811
0. 0. 0. 0. 0. 0.
,18
9.9
7.9
, 0
7.
.9
6, 77
.8
1.8
7,
.
8.8
8
8
6
.
8, 69
9.8
.8
7,
7,76
,8 8
, 66
7,76
8,787
8
8
6
.
9, 1
67.
6 .8

Dimensions (in inches)
A - Base Width
B - Furnace Center
C - Overall High Pressure Supply Connection
Overall Low Pressure Supply Connection
D - Width over Trim
E - Width over Jacket
F - Base to N.W.L.
G - Overall Length
H - Base Length
J - Front to High Pressure Feed Connection
K - Base Extension
L - Flue Door Clearance
M - Tube Removal Space
N - High Pressure Supply Size
Low Pressure Supply Size
P - Shell Length over Flue Outlet
Q - Front to Supply
R - High Pressure Supply to Manway
Low Pressure Supply to Manway
S - Flue Outlet Flange Diameter
T - Flue Inside Diameter
U - Outside Flange to Center
V - Floor to Flue Outlet Flange
W - Floor to High Pressure Feed Connection
X - Feed Connection Size
Water Content
LBS
Gallons
Approximate Shipping Weight
Low Pressure (Dry) - LBS
Low Pressure (Wet, N.W.L) - LBS
High Pressure (Dry) - LBS
High Pressure (Wet, N.W.L.) - LBS
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
100X 125X 150X 175X 200X 225X
38
33-5/16
76-5/8
76-5/8
69-1/4
59-1/4
59-3/4
190-1/2
159-3/4
93-1/8
35-3/4
29-1/2
125
4” flg
8” flg
154-3/4
60-1/8
33
33
17
13-3/8
8-1/2
74-3/8
43-5/16
1-1/4
5,536
664
7,000
12,450
8,100
13,550
38
33-5/16
76-5/8
76-5/8
69-1/4
59-1/4
59-3/4
190-1/2
1
159-3/4
93-1/8
35-3/4
29-1/2
125
4” flg
8” flg
154-3/4
60-1/8
33
33
17
13-3/8
8-1/2
74-3/8
43-5/16
1-1/4
5,536
664
7,050
12,450
8,150
13,550
38
33-5/16
76-5/8
76-5/8
69-1/4
59-1/4
59-3/4
190-1/2
159-3/4
93-1/8
35-3/4
29-1/2
125
4” flg
8” flg
154-3/4
60-1/8
33
33
17
13-3/8
8-1/2
74-3/8
43-5/16
1-1/4
5,536
664
7,100
12,500
8,200
13,600
38
33-5/16
76-5/8
76-5/8
69-1/4
59-1/4
59-3/4
192-1/2
159-3/4
93-1/8
35-3/4
29-1/2
125
6” flg
8” flg
156-3/4
60-1/8
33
33
17
15-1/2
9-1/2
74-3/8
43-5/16
1-1/2
5,536
664
7,500
12,950
8,600
14,050
38
33-5/16
76-5/8
76-5/8
69-1/4
59-1/4
59-3/4
192-1/2
159-3/4
93-1/8
35-3/4
29-1/2
125
6” flg
8” flg
156-3/4
60-1/8
33
33
17
15-1/2
9-1/2
74-3/8
43-5/16
1-1/2
5,536
664
7,650
13,050
8,750
14,150
38
33-5/16
76-5/8
76-5/8
69-1/4
59-1/4
59-3/4
194-1/2
159-3/4
93-1/8
35-3/4
30-3/4
125
6” flg
8” flg
158-3/4
60-1/8
33
33
17
17-1/2
9-1/2
74-3/8
43-5/16
1-1/2
5,536
664
7,650
13,050
8,750
14,150

Natural Gas
BOILER
SIZE
100
125
150
200
250
300
350
400
500
600
700
800
1000
#2 Oil
BOILER
SIZE
100
125
150
200
250
300
350
400
500
600
700
800
1000
Anticipated Efficiencies
125% 50% 75% 100%
10 # 125 # 10 # 125 # 10 # 125 # 10 # 125 #
8 . 0
81.00
8 .00
8 . 0
81. 0
8 .00
8 . 0
8 .00
8 . 0
8 .00
8 .00
8 . 0
8 . 0
78. 0
77.00
78.00
79.00
78.00
78. 0
78. 0
78.00
79.00
79. 0
79. 0
80.00
80.00
8 . 0
8 .00
8 .00
8 . 0
8 .00
8 . 0
8 .00
8 .00
8 .00
8 .00
8 . 0
8 . 0
8 . 0
80. 0
79.00
80.00
80. 0
79. 0
80.00
80. 0
80.00
81.00
81.00
81. 0
81. 0
81. 0
1
8 . 0
8 .00
8 .00
8 . 0
8 .00
8 . 0
8 .00
8 .00
8 .00
8 . 0
8 . 0
8 . 0
8 . 0
81.00
79. 0
80. 0
81.00
80.00
80. 0
81.00
80. 0
81. 0
8 .00
8 .00
8 .00
8 .00
8 . 0
8 .00
8 .00
8 . 0
8 .00
8 . 0
8 .00
8 .00
8 .00
8 . 0
8 . 0
8 . 0
8 . 0
81.00
79. 0
80. 0
81. 0
80.00
80. 0
81.00
80. 0
81. 0
8 .00
8 .00
8 .00
8 .00
125% 50% 75% 100%
10 # 125 # 10 # 125 # 10 # 125 # 10 # 125 #
8 . 0 81. 0 86. 0 8 . 0 86. 0 8 .00 86. 0 8 .00
8 .00 80.00 8 .00 8 .00 8 . 0 8 . 0 8 . 0 8 . 0
8 .00 81.00 86.00 8 .00 86. 0 8 . 0 86. 0 8 . 0
86.00 8 .00 87.00 8 .00 87.00 8 . 0 87.00 8 . 0
8 .00 81. 0 8 . 0 8 .00 8 . 0 8 .00 8 . 0 8 .00
8 . 0 81. 0 86.00 8 . 0 86.00 8 . 0 86.00 8 . 0
8 . 0 8 .00 86. 0 8 .00 86. 0 8 . 0 86. 0 8 . 0
8 .00 81. 0 86.00 8 . 0 86. 0 8 .00 86. 0 8 .00
86.00 8 .00 87.00 8 .00 87. 0 8 .00 87. 0 8 .00
86.00 8 . 0 87. 0 8 . 0 87. 0 8 .00 87. 0 8 .00
86. 0 8 . 0 87. 0 8 . 0 88.00 8 . 0 88.00 8 . 0
87.00 8 .00 88.00 8 .00 88.00 8 . 0 88.00 8 . 0
87.00 8 .00 88.00 8 .00 88.00 8 . 0 88.00 8 . 0

ThERMAL EFFICIENCY
The effectiveness of the boiler as a heat exchanger. It is the ability of the boiler to exchange heat through tubes and
furnace, by radiation, conduction and convection, to the transfer medium (water). A few of the factors affecting thermal
efficiency are heating surface, tube number and diameter, furnace tube length and diameter.
COMBuSTION EFFICIENCY
This is a measure of the ability of the burner to effectively and completely burn the fuel, coupled with the thermal
efficiency of the boiler. Burners requiring high amounts of excess air to provide flame stability will be less efficient.
Combustion efficiency does not take into account heat loss to the surrounding air through the boiler jacket and piping.
FuEL TO STEAM EFFICIENCY
Sometimes referred to as overall efficiency. This is a ratio of heat output to heat input. This includes boiler jacket and
piping losses to the surrounding environment. It is the percent of useable heat in the steam (or hot water) compared to
the heat input supplied by the burner. It is also defined as the combustion efficiency less boiler jacket and piping loss
(radiation and convection losses). Since fuel-to-steam efficiency reflects the portion of actual usable heat supplied to
the system, it is most useful when comparing performance of similar equipment, or when doing fuel savings analysis.
BOILER RATINGS
Ratings may be expressed in the following units:
BHP = Boiler Horsepower. One BHP is the evaporation of . lbs of 1 °F water per hour into dry saturated
steam at the same temperature.
BHP =
BTUh
, 7 BTUh/BHP
BTU = British Thermal Units: that quantity of heat required to raise one (1) lb. of water one
(1) degree on the Fahrenheit scale. BTUh = BTU/hr.
MBH = 1000 BTUh
PPH = Pounds of steam per hour
PPH =
MBH
0.970 MBH/PPH
Gross Rating – The full output of a boiler actually available to the heating or process system at the outlet nozzle.
The Commercial Steel Boiler Industry catalogs gross output as 80% of input.
Net Ratings – The net connected design load that can be supplied with heat by a boiler of given output, allowing
for normal system piping losses and pickup from a cold start. Since steam system piping losses may be
expected to be larger than for water systems, and steam boilers require greater heat input from a cold start
than water boilers before heat flows to the system, steam net ratings for automatic fired boilers are slightly
lower in relation to gross output than water net ratings. Hand fired net water and steam ratings are equal
and are lower in relation to gross output in order to provide ample allowance for rapid pickup from a
banked fire.
MBH net water = Gross MBH x 0.87
MBH net steam = Gross MBH x 0.776
Square Foot Ratings – Net ratings based on a heat emission rate of 0 BTUh per square foot of radiation for
steam, and 1 0 BTUh per square foot for water.
Steam Net MBH Water net MBH
Square Feet Net Steam = Square Feet Net Water =
0. MBH / sq. ft. 0.1 MBH / sq. ft.
1

Wetback Design vs. Hard Refractory
Dryback Design
Why is a Wetback design better?
Burnham’s three-pass wetback design has a rear water
wall, which separates the primary heating surface of the
combustion chamber from the rear tube sheet. The water
jacket eliminates the need for a refractory wall and rear
door swing space behind the boiler, as well as costly
refractory maintenance.
The rear water wall eliminates the need for gasketing,
which is vulnerable to the temperature generated in the
rear of the turnaround area. A wetback design boiler not
only overcomes these expensive deficiencies, but it has
great overall efficiency and virtually maintenance-free
construction.
A Burnham boiler will cost you less over the lifetime
of the boiler because it is better by design!
Some Points to Remember:
Wetback Advantages
• Wetback boilers have separate tube sheets between all major temperature changes.
• The rear access door is constructed of lightweight ceramic fiber
• The rear doors require no cool-down period and can be opened immediately
• No space consuming area required for the swing door
• The split rear flue doors are easily removed
• Efficiency is readily maintainable because the design of the boiler promotes complete and even circulation of
flue gases
Dryback Disadvantages
• Flue gas temperature differential of 1 00F-1600F between the second and third passes creates damaging stresses
on the single tube sheet. The cost of rear door refractory replacement (approximately every three years) will
drastically increase operating costs, as well as the costs associated with yearly rear door gasket replacement.
• Opening and resealing the rear door is time consuming and requires a -hour cool down period prior to opening
• The heavy refractory may sag on the davit and must be rigged back into place. Heavy jacks or expensive rigging
may be required just to open and close the rear doors
• Exposing the refractory to hot flue gases can cause erosion and destroy the baffle; resulting in the uneven
circulation of flue gases and lower efficiency
• Rear refractory walls radiate unabsorbed heat, leading to external heat loss
1

WhAT IS FuEL-TO-STEAM EFFICIENCY AND IS IT IMPORTANT?
Fuel-to-steam efficiency is very important because it is the only true measure of overall packaged boiler operational
efficiency. True fuel-to-steam efficiency takes into account radiation and convection heat losses, which less reputable
manufacturers may ignore. We suggest purchasing your boiler from a manufacturer who guarantees fuel-to-steam
efficiency in the performance of your entire packaged boiler. Be wary of misleading efficiency terms, such as “thermal
efficiency” or “combustion efficiency”. Contact your local Burnham Commercial sales representative for further definition.
MAINTAINABLE EFFICIENCY VS. ATTAINABLE EFFICIENCY
When looking at efficiency as criteria for purchasing a boiler, especially fuel-to-steam efficiency, the manufacturer’s
design efficiency sets theoretical fuel costs while operation efficiency determines actual fuel costs. There is a difference
between attainable efficiency and maintainable efficiency. Correct burner adjustments are the key to maintainable
efficiency. It is a compromise between the optimum and the practical. Good burner tuning is achievable only with
a good burner design and a good burner/boiler package.
WILL A DRYBACK BOILER COST MORE TO OWN?
The answer is simple…Yes! The high cost of maintenance is the biggest consideration in overall efficiency in a dryback
design. Consider this example: an average 00 HP boiler operating under normal conditions with a conservative
lifespan of years. Our surveys have shown that during this boiler’s lifetime the rear door refractory would be
replaced about 8 times (roughly every three years). Also, assuming the boiler is opened only once a year for inspection,
regasketing of the rear door would occur times.
How much cheaper is the hard refractory backed boiler?
So, somebody is offering a hard refractory backed boiler design for less money than a wetback design! While it may
make your initial capital investment costs look great, what does it do to your pocketbook in the long run?
Let’s take a look....
Average cost for replacing rear door hard refractory: $6,000
Average cost of regasketing the rear door: $ 00
Apply these costs to the average lifespan of the boiler:
$6,000 X 8 = $ 8,000
$ 00 X = $1 , 00
Compare the costs of replacing the rear door gasket of your wetback design:
$ 0 X = $7 0
The difference between the hard refractory dry back maintenance and the wetback maintenance is
$60, 00 - $7 0 = $ 9,7 0.
Now comes the shocking part...for the same amount of money spent in dryback maintenance:
YOu COuLD hAVE PuRChASED
A NEW BuRNRhAM WETBACK BOILER!
16

Series 4S
4-Pass Wetback Scotch Boiler
17

America’s Boiler Company
The Burnham Commercial Series S four-pass wetback
scotch boiler was designed using our 1 0+ years of boiler
experience and is sold and serviced through the largest
and most experienced network of sales representatives in
the country. With a complete commercial product offering
and unmatched sales and technical support, it’s no wonder
why we are America’s Boiler Company!
Why Choose the Series 4S?
• The design incorporates positive water flow circulation
and maximum heat transfer to maximize ratings.
• The handhole clean-outs are placed for ease of
servicing.
• The access door is
constructed of durable,
lightweight vacuum formed
ceramic fiber—the door liner
weighs less than 0 pounds!
• All external trim piping is
designed and installed in
accordance with the ASME
Code and is certified by an
independent inspection agency for compliance.
• The fiberglass insulated steel jacket is finish painted
with high gloss Burnham blue enamel.
• The front and rear full-sized hinged access doors are
standard and secured with non-corrosive brass nuts.
• The UL approved packaged burners are trimmed and
wired to assembled gas trains.
4-Pass Wetback Scotch Boiler
• The heavy steel base provides adequate stability
along with shipping and rigging protection.
• It is completely packaged and ready for “same day”
installation.
• The sq.ft./hp rated design does not use turbulators
or welded tube ends.
• The multitude of QC checkpoints and stringent final
inspection assures you of a quality product.
• There are no proprietary parts or gaskets on the boiler
trim or the burner.
Latest Design Techniques
The Series S uses the very latest design techniques
and standards. Its furnace, the workhorse of the boiler,
is designed for low volumetric release rates of no more
than 1 6,000 btu/hr/cu.ft. The lower the release rates,
the “easier” your boiler works. As your boiler works
easier, less stress is put upon the steel, tube ends,
refractory, etc., resulting in a longer lasting boiler. In
addition to longevity, a larger furnace makes for ease
in firing using any selected burner vendor. The Series
S is also easily converted to a low NOx product when
needed.
Higher Efficiency
The Burnham Series S design produces a higher
efficiency due to the larger furnace and higher heat
transfer design. To determine the efficiency of your next
job, contact your local Burnham representative.
4 Pass Wetback Scotch Boiler—To learn more about wetback versus dryback, please refer to our wetback literature
18

Dimensions and Ratings
100 125 150 175 200 250 300 350 400 500 600 700 800
A 68 68 76 76 76 86 86 94 94 104 104 114 114
B 84 85 93 93 93 103 103 111 111 121 121 131 131
C 150 176 169 188 207 207 235 240 263 264 300 282 311
Dimensions are approximate, see detailed drawings for more specific dimensions.
Rating Data
Boiler Size, HP 100 125 150 175 200 250 300 350 400 500 600 700 800
Shell Diameter 62 62 70 70 70 70 78 88 88 98 98 108 108
Gross Output, BHP 100 125 150 175 200 250 300 350 400 500 600 700 800
Gross Output, MBH 3348 4184 5021 5858 6695 8369 10,043 11,716 13,390 16,738 20,085 23.433 26,780
Gross Ouput, Lbs./Hr. 3450 4312.5 5175 6037.5 6900 8625 10,350 12,075 13,800 17,250 20,700 24,150 27,600
Heating Surface, FS Sq. Ft.
Firing Rate - Gas
Gas - MBH
Oil - GPH (140 MBTU/Gal.)
Furnace Volume - Cu. Ft.
Heat Releases Rate
BTU/Hr./Cu. Ft.
Water Content
Flooded - Gal.
NWL - Gal.
Shipping Weight - Lbs.
15/30 psi
125/150 psi
500
4184
29.9
39
107,618
875
779
8,000
8,900
625
5230
37.4
46
112,686
1,115
995
9,940
10,400
750
6277
44.8
58
108,471
1,187
1,019
10,500
11,700
875
7323
52.3
66
111,565
1,391
1,187
12,000
13,200
1000
8369
59.8
73
114,003
1,606
1,367
13,200
14,400
19
1250
10,461
74.7
93
112,617
1,750
1,487
15,600
19,000
1500
12,553
89.7
108
116,193
2,110
1,786
18,300
21,600
1750
14,645
104.6
133
110,011
2,661
2,266
22,300
21,600
2000
16,738
119.6
149
112,491
3,045
2,601
24,500
27,600
2500
20,922
149.4
177
118,528
3,536
2,818
28,900
32,300
3000
25,106
179.3
206
121,670
4,256
3,405
33,200
37,100
3500
29,291
2092
219
133,559
4,747
3,932
38,300
45,100
4000
33,475
239.1
246
136,013
5,431
4,507
42.500
50,000

Lancaster, PA 17601
Phone: 888-791- 790
www.burnhamcommercial.com
Series 4S Standard Equipment
Boiler:
Four-pass full wetback firetube type, constructed in
accordance with requirements of the ASME Code, Section
IV for 0 PSI and 1 PSI water or 1 PSI steam; Section I
for higher-pressure steam. All units are registered with the
National Board.
Turbulator baffles are not used in tubes. Separate rear tube
sheets allow safe expansion and contraction.
Waterbacked rear turnaround promotes rapid internal
circulation and reduces gas temperatures at the entrance to
the second pass, reducing tube end stress.
Easy opening hinged, insulated front flue doors with light
weight non-refractory closure provide full access to all tubes.
A light weight 16-inch diameter bolted rear access door with
observation port provides access to the boiler furnace. Rear
tube access is provided by removing lightweight gasketed
doors(s) installed on the rear smokebox. No elaborate seals
are used.
A manhole is furnished as standard. Handhole washouts
are provided for easy inspection and cleaning of waterside
surfaces.
All steam boilers are provided with a dry pan to ensure dry
steam. A feedwater diffuser is provided on high-pressure
boilers. All water boilers are equipped with a dip tube at
supply outlet and diffuser at return inlet.
The round-flanged vertical smoke outlet is equipped with a
quadrant damper. All boilers are provided with an enameled
steel jacket installed over 2 inches of fiberglass insulation
and lifting lugs.
The boiler is mounted on a heavy-duty structural steel base
with extended skid and burner platform for protection of the
burner during shipment and rigging.
Standard Trim and Controls:
Steam: 1 7 pump control/low water cut-off with alarm
contacts—piped with quick opening blowoff valve. Gauge
glass set with hand-operated gauge and try cocks. Steam
pressure gauge—4 ½-inch dial on sizes 125 HP and smaller,
6-inch dial on larger sizes. L 0 A operating pressuretrol,
L 0 C manual reset high limit pressuretrol and appropriate
firing rate control when required. Manual reset probe
auxiliary low water cut-off.
ASME side outlet safety valve(s).
0
Water: 6 M manual reset low water cut-off with 0 PSI
units,
150M low water cut-off with higher-pressure units—piped
with quick opening blowoff valve. Combination pressure/
temperature gauge—3 ½ inch dial on 125 HP and smaller.
On larger sizes a 6-inch combination pressure/altitude
gauge and -inch dial temperature gauge. L 006A operating
aquastat and L 006E manual reset high limit aquastat and
appropriate firing rate control when required.
ASME side outlet relief valve(s).
Burner Equipment:
Burner mounts directly to the front head of the boiler with no
elaborate seals.
Factory packaged units available with forced draft burners
for all commonly used fuels—gas, all grades of oil—No. 2
through No. 6—a combination gas/oil. Choice of pressure
or air atomizing burners for No. 2 oil—air-atomizing burners
for No. 2 oil—air atomizing on heavy oil. Gas burners are
available for either natural or LP gas.
Refer to burner data sheets for standard burner equipment
and operating sequence.
Accessories and Optional Equipment:
Accessories and optional equipment available at extra cost,
including, but not limited to:
• Alternate or additional water level controls or low water
cut-offs
• Built-in tankless heater coils—low-pressure boilers only
• Motorized or pneumatic feed valves
• Surface skimmers and blowoff valves
• Bottom blowdown valves and drain valves
• Feed stop and check valves
• Sequence draft controls
• Lead/lag sequencing systems
• Boiler Feed systems
• Low NOx burners
• Deaerators
• Water Softeners
• Chemical Feed systems
• Blowdown systems
• Sample Coolers

Low NOx
1

America’s Boiler Company
Burnham Commercial has been designing and
producing boilers for 1 0+ years, and we sell and
service through the largest and most experienced
network of sales representatives in the country. Our
representatives are capable of providing technical
assistance, competent pricing, start-up, and long term
servicing. It’s no wonder we are America’s Boiler
Company!
Low NOx Needs
Being America’s Boiler Company, we know what
burner vendors are looking for in boiler designs when
it comes to reduced NOx combustion levels—large
furnaces, high heat transfer, and low draft losses:
• Large furnaces mean low volumetric release rates.
• High heat transfer for the most efficient boiler for
your application.
• Less burner motor horsepower so less energy is
used to operate your boiler.
Lancaster, PA 17601
Phone: 888-791- 790
www.burnhamcommercial.com
Low NOx
Combining these three features contribute to an ideal
low NOx package application.
Our firebox design provides
the largest furnace possible in a firetube, and our
scotch boilers have some of the largest furnaces
available in our market—meaning we can meet all
your Low NOx needs.
Important Design Considerations
Our proven designs use the very latest low
NOx techniques and standards. Our furnace,
the workhorse of the boiler, is designed for low
volumetric heat release. The lower the release rates,
the “easier” your boiler works. As your boiler works
easier, less stress is put upon the steel, tube ends,
refractory, etc., resulting in a longer lasting boiler. In
addition to longevity, a larger boiler makes for ease in
firing using any selected burner vendor.
Smaller furnaces are extremely susceptible to erratic
flame patterns. Deformed flame patterns cause
uneven heat distribution, uneven absorption and
localized hot spots, which can lead to overheating
and over stressing. Our selections give the customer
the choice of any of the major low NOx burner
manufacturers. Because we have so many proven
product design selections to choose from, we can
custom fit any of our products to your boiler room.
Burnham Commercial can offer you firebox, threepass
or four-pass wetback scotch. We are
the only manufacturer who can offer
their packages complete with flue gas
recirculation piping, when necessary. That
eliminates extra design responsibility and
field installation costs.
Proven Product Applications
Unlike any other manufacturer, every Burnham
Commercial Low NOx package is design application
approved by our own Engineering Department and
our burner vendors’ Engineering and Applications
Design Groups. Our 1 0+ years successful track
record assures you that our products, and our vendor
selection, are the best available.

Series 4F
Forced Draft Firebox Boiler

Series 4F Forced Draft Firebox Boiler
The Versatile Boiler
The Burnham Commercial F forced draft steel
firebox boiler is a consistent sales leader in the
heating industry. Its compact and constructive
design saves on installation, operation, and
maintenance.
4F Saves on Installation
The 4F is a compact boiler that fits where other
designs of similar capacity cannot. Available for
1 psi steam and 0 or 60 psi water*, the F
can serve perfectly as the heart of almost any
system. As a factory assembled, forced-draft fired
boiler, this packaged unit does not require a tall,
expensive vent stack or excessive jobsite time
and labor.
4F Saves in Operation
• The furnace surrounds the flame with
highly efficient waterbacked primary
heat absorbing surfaces. This large
combustion chamber is easy to fire
and accommodates many forced-draft
burners without flame impingement or
other critical firing problems.
• Forced draft firing makes the 4F inherently more
efficient than boilers using outmoded atmospheric
burners and gives you a feature that atmospheric
units cannot offer: the option of burning gas or oil.
• A dual fired burner allows you to burn the more
economical fuel or the most readily available fuel
at the flip of a switch and affords you leverage in
negotiating fuel prices.
• The F is an economical heat source, whether used
singly or in multiples. In fact, F’s with modulating
burners may be sequenced to operate in a step-fired
system more cost effectively than a large number of
space saver boilers when ongoing maintenance costs
are considered.
4F Saves on Maintenance
• Superior design makes the F easy to clean and
maintain — requiring no special tools, materials, or
skills.
• Opening the front flue door allows firetubes to be
brushed out quickly, unlike the watertubes used in
some boilers which can be virtually impossible to
clean.
• Elaborate or expensive proprietary seals are not
required to re-close the doors as with some boilers.
• As a wetback boiler, there is no delicate or expensive
rear refractory to maintain.
*60-psi water boiler - consult factory for available sizes.

Dimensions (in Inches)
Series 4F — Models 63 - 675
4F Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345 360 450 563 675
A - Boiler Width 31 31 31 31 36-3/8 36-3/8 36-3/8 36-3/8 45-1/8 45-1/8 45-1/8 45-1/8 52-3/4 52-3/4 56-1/2 56-1/2
B - Boiler Length 32 39 45-1/2 52-1/2 44-1/2 53 61 70 57 65 72-1/2 80 80-3/4 93-1/4 104-3/8 122-1/4
C - Boiler Height 55-1/4 55-1/4 55-1/4 55-1/4 63-5/8 63-5/8 63-5/8 63-5/8 70-5/8 70-5/8 70-5/8 70-5/8 82-7/16 82-7/16 85-3/16 85-3/16
D - Base Width 33-1/4 33-1/4 33-1/4 33-1/4 38-5/8 38-5/8 38-5/8 38-5/8 47-3/8 47-3/8 47-3/8 47-3/8 53-1/8 53-1/8 57 57
E - Base Length 47-1/2 54-1/2 65 72 64 72-1/2 80-1/2 92-1/2 79-1/2 87-1/2 95 102-1/2 107-1/2 124 135-1/8 153
F - Base Extension 15-1/2 15-1/2 19-1/2 19-1/2 19-1/2 19-1/2 19-1/2 22-1/2 22-1/2 22-1/2 22-1/2 22-1/2 26-3/4 30-3/4 30-3/4 30-3/4
G - Front Smoke Box Height 27-5/16 27-5/16 27-5/16 27-5/16 29-7/16 29-7/16 29-7/16 29-7/16 35-1/8 35-1/8 35-1/8 35-1/8 38-1/2 38-1/2 41-9/16 41-9/16
H - Front Smoke Box Depth 5-1/2 5-1/2 5-1/2 5-1/2 6-1/2 6-1/2 6-1/2 6-1/2 7-1/2 7-1/2 7-1/2 7-1/2 6-1/2 6-1/2 7-1/2 7-1/2
J - Supply Location 13 13 13 13 16 16 16 16 19 19 19 19 28 28 28 28
*K - Supply Size 4 4 4 4 6 6 6 6 6 8 8 8 8 10 10 10
*L - Return Size - Steam 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4
M - Return Location 6-1/2 6-1/2 6-1/2 6-1/2 7 7 7 7 7 7 7 7 7-3/8 7-3/8 7-3/8 7-3/8
N - Top Vent Collar Dia. 7 7 7 7 10 10 10 10 12 12 12 12 — — — —
P - Rear Vent Collar Dia. — — — — — — — — — — — — 14 14 18 18
Q - Rear Vent Collar Height 38 38 38 38 46-1/2 46-1/2 46-1/2 46-1/2 52 52 52 52 58-13/16 58-13/16 59-5/8 59-5/8
R - Smoke Box Depth 9 9 9 9 12 12 12 12 14 14 14 14 16 16 20 20
T - Top Vent Collar Height 42-1/2 42-1/2 42-1/2 42-1/2 52-1/2 52-1/2 52-1/2 52-1/2 59-1/4 59-1/4 59-1/4 59-1/4 66-5/16 66-5/16 69-1/8 69-1/8
U - Tube Pull Space 32 39 45-1/2 52-1/2 44-1/2 53 61 70 57 65 72-1/2 80 81-1/2 94 105 123
V - Supply Fitting Height 1-1/2 1-1/2 1-1/2 1-1/2 3-1/4 3-1/4 3-1/4 3-1/4 3-1/4 3-1/4 3-1/4 3-1/4 3-3/8 3-3/8 3-7/16 3-7/16
W - Normal Water Line Height 43-3/4 43-3/4 43-3/4 43-3/4 51-1/2 51-1/2 51-1/2 51-1/2 58 58 58 58 69-3/16 69-3/16 72 72
*3” and 4” are IPS female thread, 6” and larger are flanged. 150# bolt pattern. Specifications, Dimensions Data Subject to Change without Notice

Dimensions (in Inches)
The Complete Boiler Room Supplier
4F Boiler Models 827 993 1157 1323 1654 1985 2315 2645 3075
A - Boiler Width 64 64 70 70 76 82 82 82 96
B - Boiler Length 106-1/4 129 116-1/2 136 130-1/2 128 148 163 163
C - Boiler Height 95-3/16 95-3/16 106-3/4 106-3/4 122-3/8 142-3/8 142-3/8 142-3/8 151-1/2
D - Base Width 61 61 67 67 73 79 79 79 93
E - Base Length 138-1/4 161 158-1/2 178 172-1/2 170 190 205 213
F - Base Extension 30 30 40 40 40 40 40 40 48
G - Front Smoke Box Height 29-1/8 29-1/8 33-11/16 33-11/16 41-7/8 55-1/8 55-1/8 55-1/8 69-3/4
H - Front Smoke Box Depth 12-3/4 12-3/4 13-1/2 13-1/2 14-1/2 15-1/2 15-1/2 15-1/2 16-1/2
J - Supply Location 22 22 22 22 22 22 22 22 68
*K - Supply Size 8 8 8 8 10 12 12 12 12
*L - Return Size - Steam 4 4 4 6 6 6 6 6 6
Return Size - Water 6 6 6 8 8 8 8 8 8
M - Return Location 10-1/4 10-1/4 11-1/8 11-1/8 11-1/8 11-1/2 11-1/2 11-1/2 10-1/2
N - Rear Smoke Box Depth 19-3/8 19-3/8 19-3/8 19-3/8 21-3/8 23-3/8 23-3/8 23-3/8 23-3/8
P - Rear Vent Collar Dia. 20 20 22 22 24 28 28 28 30
Q - Rear Vent Collar Height 66-3/16 66-3/16 76-13/16 76-13/16 90-11/16 106-5/16 106-5/16 106-5/16 110-1/2
R - Top Vent Collar Width 22 22 26 26 28 34 34 34 44
S - Top Vent Collar Depth 16 16 16 16 18 20 20 20 20
T - Top Vent Collar Height 76-1/8 76-1/8 87-3/ 87-3/4 102-5/8 120-1/4 120-1/4 120-1/4 123-15/16
U - Tube Pull Space 108 131 118-1/2 138 132-1/2 130 150 165 165
W - Normal Water Line Height 78-1/4 78-1/4 89-3/4 89-3/4 104-1/2 118-1/2 118-1/2 118-1/2 126
*4” are IPS female thread, 6” and larger are flanged. 150# bolt pattern. Specifications, Dimensions Data Subject to Change without Notice
© 008 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
Series 4F — Models 827 - 3075
6

Ratings and Data
4F - 40 Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345 360A 450A 563A 675A
Gross Output
MBH
BHP
Lbs. Stm/Hr
Net Rating - Steam
MBH
Sq. Ft.
527
15.7
543
409
1,705
653
19.5
673
507
2,115
770
23.0
794
598
2,490
896
26.8
923
695
2,895
1,063
31.8
1,096
825
3,445
1,289
38.5
1,328
1,000
4,165
Net Rating - Water MBH 458 568 670 780 925 1,121 1,310 1,522 1,748 2,017 2,265 2,512 2,623 3,280 4,106 4,922
Firing Rate - Gas MBH
Firing Rate - Light Oil GPH*
Heavy Oil GPH*
Heating Surface Sq. Ft.
Fireside
Waterside
659
4.7
—
59
63
816
5.8
—
73
78
963
6.9
—
86
92
1120
8.0
—
101
107
1329
9.5
—
120
127
1,611
11.5
—
145
154
Furnace Volume Cu. Ft. 8.8 10.7 12.6 14.6 18.3 21.9 25.3 29.1 34.7 39.7 44.4 49.1 58.9 68.0 89.3 104.7
Heat Release MBH/Cu. Ft. 74.9 76.3 76.4 76.7 72.6 73.6 74.4 75.1 72.4 73.0 73.3 73.5 64.0 69.3 66.1 67.5
Water Content Gal.
Steam
Water
65
90
81
112
94
132
110
153
133
168
145
196
Approx. Dry Weight Lbs. 1,700 1,900 2,100 2,600 2,700 3,100 3,300 3,600 4,200 4,400 5,300 5,600 6,710 8,700 9,300 10,400
Approx. Full Weight Lbs.
Steam
Water
2,240
2,450
2,570
2,835
3,090
3,195
3,510
3,870
3,800
4,095
Ratings based on 4 square feet of heating surface per boiler horsepower
* Light oil—140,000 BTU/GAL
** Heavy oil,—150,000 BTU/GAL
Series 4F-40
Forced Draft Firebox Generator
4,300
4,735
Instantaneous hot Water heating Coils
7
1,506
45.0
1,553
1,169
4,870
1,883
13.5
—
168
180
172
232
4,730
5,235
1,749
52.2
1,803
1,357
5,655
2,186
15.6
—
194
209
198
268
5,250
5,830
2,009
60.9
2,070
1,559
6,495
2,511
17.9
—
224
240
214
288
5,980
6,595
2,318
69.2
2,389
1,799
7,495
2,898
20.7
—
257
277
245
329
6,435
7,140
2,603
77.8
2,683
2,020
8,415
3,254
23.2
—
289
311
274
369
7,575
8,365
2,887
86.2
2,975
2,240
9,335
3,609
25.8
—
320
345
302
408
8,110
8,995
Rated Capacity — Gallons Heated
40° to 140°F Boiler Water Temp.
*For Use in the Following Boiler Sizes 108°F 180°F 212°F
Coil Number Subject to Capacity Limitation of Boiler GPM GPH GPH
INA-210 All sizes 3.5 210 325
INA-300 All except 4F-63 5.0 300 466
INA-360 All sizes 6.0 360 560
INA-450 All except 4F-63 7.5 450 700
INA-600 4F-154 and larger, also 4F-107 10.0 600 933
INA-750 4F-154 and larger, also 4F-107 12.5 750 1,165
INA-900 4F-92 and larger 15.0 900 1,400
INA-1125 4F-154 and larger 18.7 1,125 1,750
INA-1350 4F-277 and larger, also 4F-209 22.5 1,350 2,100
INA-1500 4F-345 and larger 25.0 1,500 2,330
*Two coils of any size or combination of sizes may be installed in F-11 7 and larger
3,015
90.1
3,108
2,340
9,750
3,769
26.9
25.1
360
398
470
569
10,615
11,495
3,770
112.6
3,885
2,926
12,190
4,713
33.7
31.4
450
497
551
666
13,290
14,255
4,720
141.0
4,864
3,663
15,265
5,900
42.1
39.3
563
622
663
881
14,825
15,975
5,657
169.0
5,832
4,390
18,295
7,071
50.5
47.1
675
746
788
951
16,970
18,325

Series 4F-40 Standard Equipment
Boiler:
The boilers are a three pass design constructed and
stamped in accordance with ASME Section IV of the
ASME Code for 1 psig steam or 0 psig water on any
size boiler or 60 psig water on sizes 4FW63 through
4FW993. They are the sealed forced draft firing design
with skid base and floor insulation. The flue outlet is
a top outlet on sizes F6 through F and a rear
outlet on sizes F 0 and larger. Optional outlets are
available on all sizes. The boiler comes complete with a
gas tight front flue cleanout door, rear observation port
on sizes F6 through F , or rear access door and
observation port on sizes F 0 and larger and lifting
lugs on sizes F1 7 and larger. Optional access doors
and lifting lugs are available for all sizes.
Jacket:
Rectangular type 1” fiberglass insulated jacket on sizes
4F63 through 4F345, 2” fiberglass insulated rectangular
jacket on sizes 4F450 through 4F675 and 2” fiberglass
wrap around jacket on sizes F8 7 and larger.
Steam Trim:
The following trim is shop mounted and wired: MM1 7
combination pump control and LWCO with alarm
contacts and quick opening blowoff valves, probe
type manual reset auxiliary LWCO, L404A operating
pressuretrol, L 0 C manual reset high limit pressuretrol
and appropriate firing rate control when required.
The following trim is shipped loose for field mounting:
3 ½” steam pressure gauge (on models 4FL63 through
4F675), 6” steam pressure gauge (on models 4F827
and larger), ASME side outlet safety valve(s) and gauge
glass set.
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
Water Trim:
The following trims are shop mounted and wired:
probe type LWCO (on 30 psig models 4FW63 through
4FW675) or MM63M manual reset LWCO with quick
opening blowoff valve (on 30 psig models 4FW827 and
larger) or probe type LWCO (on 60 psi models 4FW63
through 4FW675) or MM150M manual reset LWCO
with quick opening blowoff valve (on all 60 psi boilers
on models 4FW827 and larger) or L4006A operating
aquastat, L 006E manual reset high limit aquastat and
appropriate firing rate control when required.
The following trims are shipped loose for field mounting:
3 ½” theraltimeter (on models 4FW63 through 4FW675)
or 5” thermometer and 6” pressure/altitude gauge (on
models 4FW827 and larger) and loose ASME side outlet
relief valve(s).
Burner:
As selected for the fuel to be burned, mounted and
wired. Refer to burner data sheets for details of burner
equipment. Burners available for gas, No. oil, No. oil,
No. oil, No. 6 oil, combination gas/No. oil, gas/No.
oil, gas/No. oil, gas/No. 6 oil, combination gas/No.
oil, gas/No. oil, gas/No. oil, and gas/No. 6 oil.
8

Ratings and Data
4F - 45 Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345 360A 450A 563A 675A
Gross Output
MBH
BHP
Lbs. Stm/Hr
Net Rating - Steam
MBH
Sq. Ft.
469
14
483
364
1,515
579
17.3
597
449
1,870
683
20.4
704
530
2,210
797
23.8
821
618
2,575
944
28.2
973
733
3,055
1,145
34.2
1,180
889
3,705
Net Rating - Water MBH 403 504 594 693 821 996 1,165 1,351 1,552 1,794 2,012 2,234 2,350 2,913 3,698 4,398
Firing Rate - Gas MBH
Firing Rate - Light Oil GPH
Heavy Oil GPH
Heating Surface Sq. Ft.
Fireside
Waterside
586
4.2
—
59
63
724
5.2
—
73
78
854
6.1
—
86
92
996
7.1
—
101
107
1,180
8.4
—
120
127
1,431
10.2
—
145
154
Furnace Volume Cu. Ft. 8.8 10.7 12.6 14.6 18.3 21.9 25.3 29.1 34.7 39.7 44.4 49.1 58.9 68.0 89.3 104.7
Heat Release MBH/Cu. Ft. 66.6 67.7 67.8 68.2 64.5 65.3 66.2 66.7 64.3 64.9 65.1 65.4 56.8 61.5 59.5 60.4
Water Content Gal.
Steam
Water
65
90
81
112
94
132
110
153
133
168
145
196
Approx. Dry Weight Lbs. 1,700 1,900 2,100 2,600 2,700 3,100 3,300 3,600 4,200 4,600 5,300 5,600 6,900 8,700 9,300 10,400
Approx. Full Weight Lbs.
Steam
Water
2,240
2,450
2,570
2,835
3,090
3,195
3,510
3,870
3,800
4,095
Ratings based on 4.5 square feet of heating surface per boiler horsepower
Series 4F-45
Forced Draft Firebox Generator
4,300
4,735
9
1,339
40.0
1,380
1,039
4,340
1,674
12.0
—
168
180
172
232
4,730
5,235
1,553
46.4
1,601
1,205
5,020
1,941
13.9
—
194
209
198
268
5,250
5,830
1,784
53.3
1,839
1,384
5,765
2,230
15.9
—
224
240
214
288
5,980
6,595
2,062
61.6
2,125
1,600
6,665
2,578
18.4
—
257
277
245
329
6,435
7,140
2,313
69.1
2,384
1,795
7,480
2,891
20.7
—
289
311
274
369
7,575
8,365
2,568
76.7
2,646
1,993
8,305
3,210
22.9
—
320
345
302
408
8,110
8,995
2,678
80.0
2,760
2,078
8,660
3,348
23.9
22.3
360
398
470
569
3,348
100.0
3,450
2,598
10,825
4,185
29.9
27.9
450
497
551
666
4,251
127.0
4,380
3,299
13,745
5,314
38.0
35.4
563
622
663
801
5,055
151.0
5,210
3,923
16,345
6,319
45.1
42.1
675
746
788
951
10,615 13,290 14,825 16,970
11,495 14,255 15,975 18,325
4F - 45 Boiler Models 360A-3 450-A 563A-3 675A-3 827 993 1157 1323 1654 1985 2315
Gross Output
MBH
BHP
Lbs. Stm/Hr
Net Rating - Steam
MBH
Sq. Ft.
2,953
88.2
3,044
2,292
9,550
3,445
102.9
3,550
2,673
11,140
4,188
125.1
4,316
3,250
13,540
4,924
147.1
5,075
3,821
15,920
6,126
183.0
6,315
4,754
19,810
7,388
220.7
7,617
5,733
23,890
8,606
257.1
8,872
6,885
28,690
9,842
294.0
10,146
7,873
32,805
12,302
367.5
12,682
9,546
39,775
14,766
441.1
15,223
11,458
47,740
Net Rating - Water MBH 2,569 2,997 3,644 4,284 5,330 6,428 7,487 8,563 10,703 12,846 14,981
Firing Rate - Gas MBH
Firing Rate - Light Oil GPH
Heavy Oil GPH
Heating Surface Sq. Ft.
Fireside
Waterside
3,691
26.4
24.6
397
429
4,306
30.8
28.7
463
500
5,235
37.4
34.9
563
608
6,155
44.0
41.0
662
715
Furnace Volume Cu. Ft. 58.9 68.0 89.3 104.7 115.6 139.2 160.7 186.5 234.0 301.6 348.6
Heat Release MBH/Cu. Ft. 62.7 63.3 58.6 58.8 66.2 66.3 66.9 66.0 65.7 61.2 61.7
Water Content Gal.
Steam
Water
421
519
492
676
602
740
712
875
Approx. Dry Weight Lbs. 6,900 8,800 9,300 12,400 13,200 14,800 18,300 19,200 23,000 28,000 34,500
Approx. Full Weight Lbs.
Steam
Water
10,405
11,225
12,900
14,430
14,315
15,465
16,930
18,290
7,658
54.7
51.0
827
893
761
1,003
18,970
20,325
9,235
66.0
61.6
993
1,072
925
1,220
22,500
24,950
10,758
76.8
71.7
1,157
1,250
1,050
1,330
27,040
28,675
12,303
87.9
82.0
1,323
1,429
1,227
1,554
29,415
32,140
15,378
110.0
102.7
1,654
1,786
1,443
1,826
35,010
38,200
18,458
132.0
123.2
1,985
2,143
1,720
2,147
42,320
45,870
17,220
514.4
17,753
13,363
55,680
21,525
154.0
143.7
2,315
2,500
1,979
2,473
50,970
55,085

Series 4F Standard Equipment
Boiler:
The boilers are a three pass design constructed and
stamped in accordance with ASME Section IV of the
ASME Code for 1 psig steam or 0 psig water on any
size boiler or 60 psig water on sizes 4FW63 through
4FW993. They are the sealed forced draft firing design
with skid base and floor insulation. The flue outlet is
a top outlet on sizes F6 through F and a rear
outlet on sizes F 0 and larger. Optional outlets are
available on all sizes. The boiler comes complete with a
gas tight front flue cleanout door, rear observation port
on sizes F6 through F , or rear access door and
observation port on sizes F 0 and larger and lifting
lugs on sizes F1 7 and larger. Optional access doors
and lifting lugs are available for all sizes.
Jacket:
Rectangular type 1” fiberglass insulated jacket on sizes
4F63 through 4F345, 2” fiberglass insulated rectangular
jacket on sizes 4F450 through 4F675 and 2” fiberglass
wrap around jacket on sizes F8 7 and larger.
Steam Trim:
The following trim is shop mounted and wired: MM1 7
combination pump control and LWCO with alarm
contacts and quick opening blowoff valves, probe
type manual reset auxiliary LWCO, L404A operating
pressuretrol, L 0 C manual reset high limit pressuretrol
and appropriate firing rate control when required.
The following trim is shipped loose for field mounting:
3 ½” steam pressure gauge (on models 4FL63 through
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
Instantaneous hot Water heating Coils
4F675), 6” steam pressure gauge (on models 4F827
and larger), ASME side outlet safety valve(s) and gauge
glass set.
Water Trim:
The following trims are shop mounted and wired:
probe type LWCO (on 30 psig models 4FW63 through
4FW675) or MM63M manual reset LWCO with quick
opening blowoff valve (on 30 psig models 4FW827 and
larger) or probe type LWCO (on 60 psi models 4FW63
through 4FW675) or MM150M manual reset LWCO
with quick opening blowoff valve (on all 60 psi boilers
on models 4FW827 and larger) or L4006A operating
aquastat, L 006E manual reset high limit aquastat and
appropriate firing rate control when required.
The following trims are shipped loose for field mounting:
3 ½” theraltimeter (on models 4FW63 through 4FW675)
or 5” thermometer and 6” pressure/altitude gauge (on
models 4FW827 and larger) and loose ASME side outlet
relief valve(s).
Burner:
As selected for the fuel to be burned, mounted and
wired. Refer to burner data sheets for details of burner
equipment. Burners available for gas, No. oil, No. oil,
No. oil, No. 6 oil, combination gas/No. oil, gas/No.
oil, gas/No. oil, gas/No. 6 oil, combination gas/No.
oil, gas/No. oil, gas/No. oil, and gas/No. 6 oil.
Rated Capacity — Gallons Heated
40° to 140°F Boiler Water Temp.
*For Use in the Following Boiler Sizes 108°F 180°F 212°F
Coil Number Subject to Capacity Limitation of Boiler GPM GPH GPH
INA-210 All sizes 3.5 210 325
INA-300 All except 4F-63 5.0 300 466
INA-360 All sizes 6.0 360 560
INA-450 All except 4F-63 7.5 450 700
INA-600 4F-154 and larger, also 4F-107 10.0 600 933
INA-750 4F-154 and larger, also 4F-107 12.5 750 1,165
INA-900 4F-92 and larger 15.0 900 1,400
INA-1125 4F-154 and larger 18.7 1,125 1,750
INA-1350 4F-277 and larger, also 4F-209 22.5 1,350 2,100
INA-1500 4F-345 and larger 25.0 1,500 2,330
*Two coils of any size or combination of sizes may be installed in F-11 7 and larger
0

Ratings and Data
4F - 50 Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345 360A 450A 563A 675A
Gross Output
MBH
BHP
Lbs. Stm/Hr
Net Rating - Steam
MBH
Sq. Ft.
422
12.6
435
327
1,365
522
15.6
538
405
1,690
616
18.4
635
478
1,990
716
21.4
738
556
2,315
850
25.4
876
660
2,750
1,031
30.8
1,063
800
3,335
Net Rating - Water MBH 367 454 536 623 740 897 1,048 1,218 1,398 1,614 1,811 2,010 2,097 2,623 3,280 3,932
Firing Rate - Gas MBH
Firing Rate - Light Oil GPH
Heavy Oil GPH
Heating Surface Sq. Ft.
Fireside
Waterside
528
3.8
—
59
63
653
4.7
—
73
78
770
5.5
—
86
92
895
6.4
—
101
107
1,063
7.6
—
120
127
1,289
9.2
—
145
154
Furnace Volume Cu. Ft. 8.8 10.7 12.6 14.6 18.3 21.9 25.3 29.1 34.7 39.7 44.4 49.1 58.9 68.0 89.3 104.7
Heat Release MBH/Cu. Ft. 60.0 61.0 61.1 61.3 58.1 58.8 59.5 60.1 57.9 58.4 58.6 58.8 51.2 55.4 52.8 53.9
Water Content Gal.
Steam
Water
65
90
81
112
94
132
110
153
133
168
145
196
Approx. Dry Weight Lbs. 1,700 1,900 2,100 2,600 2,700 3,100 3,300 3,600 4,200 4,400 5,300 5,600 6,700 8,700 9,300 10,400
Approx. Full Weight Lbs.
Steam
Water
2,240
2,450
2,570
2,835
3,090
3,195
3,510
3,870
3,800
4,095
Ratings based on 5 square feet of heating surface per boiler horsepower
Series 4F-50
Forced Draft Firebox Generator
4,300
4,735
1
1,205
36.0
1,242
935
3,895
1,506
10.8
—
168
180
172
232
4,730
5,235
1,400
41.8
1,442
1,086
4,525
1,750
12.5
—
194
209
198
268
5,250
5,830
1,607
48.0
1,656
1,247
5,195
2,009
14.4
—
224
240
214
288
5,980
6,595
1,855
55.4
1,911
1,439
5,995
2,319
16.6
—
257
277
245
329
6,435
7,140
2,082
62.2
2,146
1,616
6,735
2,603
18.6
—
289
311
274
369
7,575
8,365
2,310
69.0
2,381
1,793
7,470
2,888
20.6
—
320
345
302
408
8,110
8,995
2,410
72.0
2,484
1,870
7,790
3,013
21.5
20.1
360
398
470
569
3,015
90.0
3,108
2,340
9,750
3,769
27.0
25.2
450
497
537
666
3,770
112.6
3,885
2,926
12,190
4,713
33.6
31.4
563
622
683
801
4,520
135.0
4,660
3,508
14,615
5,650
40.4
37.7
675
746
788
951
10,615 13,290 14,825 16,970
11,495 14,255 15,975 18,325
4F - 50 Boiler Models 360A-3 450-A 563A-3 675A-3 827 993 1157 1323 1654 1985 2315 2645 3075
Gross Output
MBH
BHP
Lbs. Stm/Hr
Net Rating - Steam
MBH
Sq. Ft.
2,658
79.4
2,739
2,063
8,596
3,100
92.6
3,195
2,406
10,025
3,769
112.6
3,885
2,925
12,188
4,432
132.4
4,568
3,439
14,329
5,537
165.0
5,706
4,299
17,910
Net Rating - Water MBH 2,312 2,697 3,279 3,856 4,817 5,784 6,739 7,706 9,634 11,562 13,484 15,406 17,911
Firing Rate - Gas MBH
Firing Rate - Light Oil GPH
Heavy Oil GPH
Heating Surface Sq. Ft.
Fireside
Waterside
3,323
23.7
22.2
397
429
3,875
27.7
25.8
463
500
4,711
33.7
31.4
563
608
5,540
39.6
36.9
662
715
6,921
49.9
46.6
827
893
Furnace Volume Cu. Ft. 58.9 68.0 89.3 104.7 115.6 139.2 160.7 186.5 234.0 301.6 348.6 383.8 505.6
Heat Release MBH/Cu. Ft. 56.4 57.0 52.8 52.9 59.9 59.7 60.3 59.4 59.2 55.1 55.6 63.5 50.9
Water Content Gal.
Steam
Water
421
519
492
676
602
740
712
875
761
1,003
Approx. Dry Weight Lbs. 6,900 8,800 11,000 12,400 14,800 18,300 19,200 19,800 23,000 28,000 34,500 38,200 49,000
Approx. Full Weight Lbs.
Steam
Water
10,450
11,225
12,900
14,430
14,315
15,465
16,930
18,290
18,970
20,325
6,648
199.0
6,852
5,161
21,505
8,310
60.0
56.0
993
1,072
925
1,220
22,500
24,950
7,746
231.0
7,983
6,014
25,060
9,683
70.0
65.3
1,157
1,250
1,050
1,330
27,040
29,375
8,857
265.0
9,129
6,877
28,655
11,071
80.0
74.7
1,323
1,429
1,227
1,554
29,415
32,140
11,074
331.0
11,413
8,598
35,825
13,843
99.0
92.4
1,654
1,786
1,443
1,826
35,010
38,200
13,290
397.0
13,697
10,318
42,995
16,613
119.0
110.7
1,985
2,143
1,720
2,147
42,320
45,870
15,499
463.00
15,974
12,033
50,140
19,374
139.0
129.3
2,315
2,500
1,979
2,473
50,970
55,085
17,708
529.0
18,252
13,748
57,285
22,135
158.0
148.0
2,645
2,857
2,173
2,718
56,290
60,820
20,587
615.0
21,217
15,976
66,525
25,734
184.0
172.0
3,075
3,321
2,814
3,665
72,430
79,510

Series 4F Standard Equipment
Boiler:
The boilers are a three pass design constructed and
stamped in accordance with ASME Section IV of the
ASME Code for 1 psig steam or 0 psig water on any
size boiler or 60 psig water on sizes 4FW63 through
4FW993. They are the sealed forced draft firing design
with skid base and floor insulation. The flue outlet is
a top outlet on sizes F6 through F and a rear
outlet on sizes F 0 and larger. Optional outlets are
available on all sizes. The boiler comes complete with a
gas tight front flue cleanout door, rear observation port
on sizes F6 through F , or rear access door and
observation port on sizes F 0 and larger and lifting
lugs on sizes F1 7 and larger. Optional access doors
and lifting lugs are available for all sizes.
Jacket:
Rectangular type 1” fiberglass insulated jacket on sizes
4F63 through 4F345, 2” fiberglass insulated rectangular
jacket on sizes 4F450 through 4F675 and 2” fiberglass
wrap around jacket on sizes F8 7 and larger.
Steam Trim:
The following trim is shop mounted and wired: MM1 7
combination pump control and LWCO with alarm
contacts and quick opening blowoff valves, probe
type manual reset auxiliary LWCO, L404A operating
pressuretrol, L 0 C manual reset high limit pressuretrol
and appropriate firing rate control when required.
The following trim is shipped loose for field mounting:
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
Instantaneous hot Water heating Coils
3 ½” steam pressure gauge (on models 4FL63 through
4F675), 6” steam pressure gauge (on models 4F827
and larger), ASME side outlet safety valve(s) and gauge
glass set.
Water Trim:
The following trims are shop mounted and wired:
probe type LWCO (on 30 psig models 4FW63 through
4FW675) or MM63M manual reset LWCO with quick
opening blowoff valve (on 30 psig models 4FW827 and
larger) or probe type LWCO (on 60 psi models 4FW63
through 4FW675) or MM150M manual reset LWCO
with quick opening blowoff valve (on all 60 psi boilers
on models 4FW827 and larger) or L4006A operating
aquastat, L 006E manual reset high limit aquastat and
appropriate firing rate control when required.
The following trims are shipped loose for field mounting:
3 ½” theraltimeter (on models 4FW63 through 4FW675)
or 5” thermometer and 6” pressure/altitude gauge (on
models 4FW827 and larger) and loose ASME side outlet
relief valve(s).
Burner:
As selected for the fuel to be burned, mounted and
wired. Refer to burner data sheets for details of burner
equipment. Burners available for gas, No. oil, No. oil,
No. oil, No. 6 oil, combination gas/No. oil, gas/No.
oil, gas/No. oil, gas/No. 6 oil, combination gas/No.
oil, gas/No. oil, gas/No. oil, and gas/No. 6 oil.
Rated Capacity — Gallons Heated
40° to 140°F Boiler Water Temp.
*For Use in the Following Boiler Sizes 108°F 180°F 212°F
Coil Number Subject to Capacity Limitation of Boiler GPM GPH GPH
INA-210 All sizes 3.5 210 325
INA-300 All except 4F-63 5.0 300 466
INA-360 All sizes 6.0 360 560
INA-450 All except 4F-63 7.5 450 700
INA-600 4F-154 and larger, also 4F-107 10.0 600 933
INA-750 4F-154 and larger, also 4F-107 12.5 750 1,165
INA-900 4F-92 and larger 15.0 900 1,400
INA-1125 4F-154 and larger 18.7 1,125 1,750
INA-1350 4F-277 and larger, also 4F-209 22.5 1,350 2,100
INA-1500 4F-345 and larger 25.0 1,500 2,330
*Two coils of any size or combination of sizes may be installed in F-11 7 and larger

Series 4F Forced Draft Firetube Boiler
“Ohio Special”
Series 4F Ohio Special Boiler Features:
• Three pass full wetback, packaged firetube type,
constructed in accordance with requirements of the
ASME Boiler and Pressure Vessel Code, Section IV
for 1 -psi steam. All units are registered with the
National Board.
• Sealed forced draft firing design.
• Boiler tubes are expanded and flared. Separate
second and third pass rear tube sheets allow safe
expansion and contraction.
• Waterback rear turnaround promotes rapid internal
circulation and reduces gas temperatures at entrance
to second pass, reducing tube and stress.
• Easy opening, insulated front flue doors with bolted
closure provide full access to all tubes. A 16-inch
diameter bolted rear access door with observation port
provides access to the boiler furnace.
• Handhole washouts are provided for easy inspection
and cleaning of waterside surfaces.
• All steam boilers provided with a dry pan to ensure
dry steam.
• The round horizontal smoke outlet is standard. Vertical
smokebox outlet and quadrant dampers are optional.
• All boilers are provided with an enameled steel jacket
over 2 inches of fiberglass insulation and lifting lugs.
• The boiler is mounted on a heavy-duty steel base with
extended skid and burner platform for protection of the
burner during shipment and rigging.

Standard Trim and Controls
• 1 7 combination pump control
• LWCO with alarm contacts
• quick opening blowoff valves
• Gauge glass set
Dimensions (in Inches)
4F360-OS Boiler Model
A - Boiler Width 52-1/4
B - Boiler Length 80-3/4
C - Boiler Height 82-3/8
D - Base Width 53-1/8
E - Base Length 107-1/2
F - Base Extension 26-3/4
G - Front Smoke Box Height 36-3/4
H - Front Smoke Box Depth 6-1/2
J - Supply Location 26
K - Supply Size - Flanged 8
L - Return Size - Threaded 4
M - Return Location 7-3/8
N - Smoke Box Depth - Rear Vent 8
P - Vent Collar Diameter 14
Q - Rear Vent Collar Height 58-3/4
R - Smoke Box Depth - Top Vent 16
T - Top Vent Collar Height 66-1/4
U - Tube Pull Space 81
V - Supply Fitting Height 3-1/2
W - Normal Water Line Height 69-1/4
• Steam pressure gauge — 3 ½
• L 0 operating pressuretrol
• L 0 C manual reset high limit pressuretrol and
appropriate firing rate control when required.
Manual reset probe auxiliary LWCO.
Ratings and Data
4F360-OS Boiler Model 4F360-OS
Gross Output MBH
BHP
Lb. Stm./Hr.
Net Rating - Steam MBH
Sq. Ft.
3,015
90.1
3,108
2,340
9,750
Net Rating - Water MBH 2,623
Firing Rate Gas - MBH
Oil - GPH
Light Oil (140,000 BTU/Gal.)
Heavy Oil (150,000 BTU/Gal.)
Heating Surface - Sq. Ft. Fireside
Waterside
3,769
—
26.9
25.1
358
396
Furnace Volume Cu. Ft. 58.9
Heat Release MBH/Cu. Ft. 64
Water Content - Gal. Steam
Flooded
470
569
Approx. Dry Weight - Lbs. 6,710
Approx. Full Weight - Lbs. Steam
Flooded
10,615
11,495
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com

Series 4N
Natural Draft Firebox Boiler

Series 4N Natural Draft Firebox Boiler
Ratings for Oil, Gas or Stoker Firing
4N Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345 397
Gross Output MBH
BHP
Lbs.Stm./Hr.
Net Rating Steam MBH
Sq. Ft.
245
7.3
253
190
790
299
8.9
308
232
970
348
10.4
359
270
1,125
403
12.0
415
313
1,305
Net Rating Water MBH 213 260 303 351 454 545 630 757 867 994 1,112 1,230 1,878
Firing Rate - Gas MBH
Light Oil (140,000 BTU/Gal.)
Heavy Oil (150,000 BTU/Gal.)
306
2.2
—
374
2.7
—
435
3.1
—
504
3.6
—
Coal (Stoker) Lbs./Hr. 25 31 36 41 54 64 74 89 102 117 131 145 222
Heating Surface Sq. Ft.
Fireside
Waterside
45
47
55
57
64
67
74
77
Furnace Volume Cu. Ft. * 8.8 10.7 12.6 14.6 18.3 21.9 25.3 29.1 34.7 39.7 44.4 49.1 58.9
Heat Release MBH/Cu. Ft. 34.8 35.0 34.5 34.5 35.7 35.8 35.8 37.4 35.9 36.0 36.0 36.0 45.8
Water Content Gals.
Steam
Water
67
92
83
114
96
134
113
156
Approx. Dry Weight Lbs. 1,500 1,700 1,900 2,200 2,500 2,800 3,100 3,400 3,900 4,300 4,900 5,200 6,500
Approx. Weight Full Lbs.
Steam
Water
2,055
2,265
2,390
2,650
2,700
3,020
3,140
3,500
4N Boiler Models 463 563 662 827 993 1157 1323 1654 1985 2315 2645 3075
Gross Output MBH
BHP
Lbs.Stm./Hr.
Net Rating Steam MBH
Sq. Ft.
2,519
75
2,596
1,956
8,150
3,063
92
3,156
2,378
9,910
3,601
108
3,712
2,796
11,650
4,499
134
4,636
3,493
14,555
Net Rating Water MBH 2,190 2,663 3,131 3,912 4,697 5,473 6,258 7,824 9,390 10,951 12,512 14,554
Firing Rate - Gas MBH
Light Oil (140,000 BTU/Gal.)
Heavy Oil (150,000 BTU/Gal.)
3,149
22.5
21.0
3,829
27.3
25.5
4,501
32.1
30.0
5,624
40.2
37.5
Coal (Stoker) Lbs./Hr. 258 314 369 461 554 646 738 923 1,108 1,292 1,476 1,717
Heating Surface Sq. Ft.
Fireside
Waterside
463
500
563
608
662
715
827
893
Furnace Volume Cu. Ft. * 68.0 89.3 104.7 115.6 139.2 160.7 186.5 234.0 301.6 348.6 383.8 505.6
Heat Release MBH/Cu. Ft. 46.3 42.9 43.0 48.7 48.5 49.0 48.2 48.1 44.8 45.2 46.9 41.4
Water Content Gals.
Steam
Water
492
607
602
740
712
875
761
1,003
Approx. Dry Weight Lbs. 8,000 8,500 10,100 12,300 13,300 16,600 18,600 21,700 26,500 32,800 37,500 48,200
Approx. Weight Full Lbs.
Steam
Water
12,100
13,055
13,515
14,665
All models have 3 inch diameter tubes—except 3075 has 2-1/2 inch tubes
* = deos not include base volume
16,030
17,390
18,630
20,645
6
522
15.6
538
405
1,690
653
4.7
—
96
100
133
168
3,605
3,895
5,402
161
5,567
4,194
17,475
6,753
48.2
45.0
993
1,072
925
1,220
21,005
23,455
626
18.7
645
486
2,025
783
5.6
—
115
120
149
200
4,040
4,465
6,294
188
6,484
4,887
20,360
7,868
56.2
52.5
1,157
1,250
1,050
1,330
25,340
27,675
724
21.6
746
562
2,340
905
6.5
—
133
139
171
231
4,525
5,025
7,197
215
7,417
5,588
23,280
8,996
64.3
60.0
1,323
1,429
1,227
1,554
28,815
31,540
870
26.0
897
675
2,815
1,088
7.8
—
153
160
197
267
5,040
5,620
8,998
269
9,273
996
29.8
1,027
773
3,220
1,245
8.9
—
183
193
209
283
5,635
6,250
6,986
29,110
11,248
80.3
75.0
1,654
1,786
1,443
1,826
33,710
36,900
1,142
34.1
1,177
887
3,695
1,428
10.2
—
210
221
239
323
6,285
6,985
10,798
323
11,129
8,384
34,930
13,498
96.4
90.0
1,985
2,143
1,720
2,147
40,815
44,370
1,278
38.2
1,317
992
4,235
1,598
11.4
—
235
247
267
362
7,120
7,910
12,594
376
12,979
9,778
40,740
15,743
112.5
104.9
2,315
2,500
1,979
2,473
49,270
53,385
1,414
42.2
1,457
1,098
4,570
1,768
12.6
—
260
274
295
401
7,650
8,535
14,389
430
14,829
11,172
46,550
17,986
128.5
120.0
2,645
2,857
2,173
2,718
55,590
60,120
21,60
65
2,226
1,667
6,990
2,700
19.3
18.0
397
429
421
520
10,005
10,830
16,738
500
17,250
12,989
54,120
20,923
149.5
139.5
3,075
3,321
2,814
3,665
71,630
78,710

Dimensions (Inches)
Series 4N — Models 63 - 662
4N Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345 397 463 563 662
A - Boiler Width 30-1/4 30-1/4 30-1/4 30-1/4 35-7/8 35-7/8 35-7/8 35-7/8 44-5/8 44-5/8 44-5/8 44-5/8 52-1/4 52-1/4 56 56
B - Boiler Length 30 37 43-1/2 50-1/2 42-1/2 51 59 68 55 63 70-1/2 78 76-3/4 89-1/4 100-3/8 118-1/4
C - Boiler Height 52-1/8 52-1/8 52-1/8 52-1/8 60-1/2 60-1/2 60-1/2 60-1/2 67-1/2 67-1/2 67-1/2 67-1/2 79-1/4 79-1/4 82 82
D - Base Width 29-3/4 29-3/4 29-3/4 29-3/4 35-1/8 35-1/8 35-1/8 35-1/8 43-7/8 43-7/8 43-7/8 43-7/8 50-1/8 50-1/8 54 54
E - Base Length 30-1/2 37-1/2 44 51 43 51-1/2 59-1/2 68-1/2 55-1/2 63-1/2 71 78-1/2 78-1/8 90-5/8 101-3/4 119-5/8
*F - Base Height 15 15 15 15 18 18 18 18 18 18 18 18 18 18 18 18
G - Front Smoke Box Height 22-3/4 22-3/4 22-3/4 22-3/4 24-7/8 24-7/8 24-7/8 24-7/8 30-5/8 30-5/8 30-5/8 30-5/8 33-5/8 33-5/8 36-3/4 36-3/4
H - Front Smoke Box Depth 6-1/2 6-1/2 6-1/2 6-1/2 7-1/2 7-1/2 7-1/2 7-1/2 8-1/2 8-1/2 8-1/2 8-1/4 8-1/4 8-1/4 9-3/4 9-3/4
J - Supply Location 12 12 12 12 15 15 15 15 18 18 18 18 26 26 26 26
**K - Supply Size 4 4 4 4 6 6 6 6 6 8 8 8 8 10 10 10
L - Return Size 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4
M - Return Location 3-1/2 3-1/2 3-1/2 3-1/2 4 4 4 4 4 4 4 4 4-3/8 4-3/8 4-3/8 4-3/8
N - Smoke Box Depth - Top
Rear
8
16-1/2
8
16-1/2
8
16-1/2
8
16-1/2
*Oil, Gas, Stoker Only - See note below rating table for hand-fired boilers.
**4” is IPS female thread, 6” and larger are flanged
Specifications, dimensions data subject to change without notice.
9
20-1/2
9
20-1/2
P - Vent Collar Diameter 14 14 14 14 18 18 18 18 20 20 20 20 20 24 26 28
Q - Rear Vent Collar Height 33-7/8 33-7/8 33-7/8 33-7/8 40 40 40 40 46 46 46 46 51-1/2 51-1/2 52-3/8 52-3/8
R - Smoke Box Collar
Width Top Vent
S - Smoke Box Collar
Depth Top Vent
7
9
20-1/2
9
20-1/2
10
22-1/2
10
22-1/2
10
22-1/2
10
22-1/2
— — — — — — — — — — — — 35-1/4 35-1/4 42-1/2 42-1/2
— — — — — — — — — — — — 10 13 12 13
T - Top Vent Collar Height 41-7/8 41-7/8 41-7/8 41-7/8 49-1/8 49-1/8 49-1/8 49-1/8 57 57 57 57 64 64 66-7/8 66-7/8
U - Tube Pull Space 32 39 45-1/2 52-1/2 44-1/2 53 61 70 57 65 72-1/2 80 81 94 105 23
V - Supply Fitting Height 1-5/8 1-5/8 1-5/8 1-5/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-3/8 3-1/2 3-1/2 3-5/8 3-5/8
W - Normal Water Line Height 40-3/4 40-3/4 40-3/4 40-3/4 48-1/2 48-1/2 48-1/2 48-1/2 55 55 55 55 66-3/16 66-3/16 69 69
16
16
16
16
16
16
16
16

Dimensions (Inches)
The Series Complete 4N — Boiler Models Room 827 Supplier
- 3075
4N Boiler Models 827 993 1157 1323 1654 1985 2315 2645 3075
A - Boiler Width 64 64 70 70 76 82 82 82 96
B - Boiler Length 106-1/4 129 116-1/2 136 130-1/2 128 148 162 163
*C - Boiler Height 91 91 102-1/2 102-1/2 118-1/8 138-1/8 138-1/8 138-1/8 148
D - Base Width 61-1/2 61-1/2 67-1/2 67-1/2 73-1/2 79-1/2 79-1/2 79-1/2 93-1/2
E - Base Length 107-1/4 130 117-1/2 137 131-1/2 129 149 164 164
F - Base Height 18 18 18 18 18 18 18 18 18
G - Front Smoke Box Door Height 29-5/16 29-5/16 35-7/16 35-7/16 40-3/8 52-1/8 52-1/8 52-1/8 65-7/8
H - Front Smoke Box Depth 12-3/4 12-3/4 13-3/4 13-3/4 14-3/4 15-3/4 15-3/4 15-3/4 16-1/2
J - Supply Location 22 22 22 22 22 22 22 22 68
**K - Supply Size 8 8 8 8 10 12 12 12 12
**L - Return Size - Steam 4 4 4 6 6 6 6 6 6
**L - Return Size - Water 6 6 6 8 8 8 8 8 8
M - Return Location 6 6 6-7/8 6-7/8 6-7/8 7-1/4 7-1/4 7-1/4 7
N - Smoke Box Depth Rear 20-3/4 20-3/4 22-3/4 22-3/4 22-3/4 24-3/4 24-3/4 24-3/4 26
P - Rear Vent Collar Diameter 28 32 32 35 38 44 44 44 46
Q - Rear Vent Collar Height 71-1/2 71-1/2 81-1/2 81-1/2 94-5/8 110-5/8 110-5/8 110-5/8 119
R - Top Vent Collar Width 48 48 51 51 55 72 72 72 84
S - Top Vent Collar Depth 14 17 16 19 16 18 18 18 22
T - Top Vent Collar Height 87-3/4 87-3/4 99-1/4 99-1/4 113-7/8 132-7/8 132-7/8 132-7/8 142
U - Tube Pull Space 108 131 118-1/2 138 132-1/2 130 150 165 165
W - Normal Water Line Height 74 74 85-1/2 85-1/2 100-1/4 114-1/4 114-1/4 114-1/4 122-1/2
*Oil, Gas, Stoker Only - See note below rating table for hand-fired boilers.
**4” is IPS female thread, 6” and larger are flanged
Specifications, dimensions data subject to change without notice.
8

• Compact, efficient three-pass firebox design
• Applications firing solid fuel, gas or oil
Ratings for hand Firing
Series 4N Ratings
4N Boiler Models 63 78 92 107 127 154 180 209 240 277 311 345
Net Rating - Steam or Water MBH
Net Rating - Steam Sq. Ft.
Net Rating - Water Sq. Ft.
Heating Surface - Sq. Ft. Fireside
Waterside
158
660
1,055
45
47
192
800
1,280
55
57
225
935
1,500
64
67
Grate Area Sq. Ft. 4.0 5.1 6.1 7.2 7.2 8.8 10.3 12.0 12.6 12.6 13.4 14.5
Furnace Volume Cu. Ft. 8.8 10.7 12.6 14.6 18.3 21.9 25.3 29.1 34.7 39.7 44.4 49.1
Heat Release MBH/Cu. Ft. 39.9 40.1 39.2 39.2 40.5 41.0 41.1 42.9 41.2 41.3 41.0 41.0
Water Content - Gals. Steam
Water
67
92
83
114
96
134
9
259
1,080
1,725
Approx. Dry Weight - Lbs. 1,900 2,200 2,500 2,900 3,200 3,700 4,100 4,600 5,150 5,550 6,250 6,650
Approx. Full Weight - Lbs. Steam
Water
2,455
2,665
2,900
3,160
3,310
3,630
74
77
113
156
3,860
4,220
4N Boiler Models 397 463 563 662 827 993 1157 1323 1654 1985 2315 2645
Net Rating - Steam or Water MBH
Net Rating - Steam Sq. Ft.
Net Rating - Water Sq. Ft.
Heating Surface - Sq. Ft. Fireside
Waterside
1,408
5,865
9,391
397
429
1,724
7,185
11,500
463
500
2,188
9,115
14,595
563
608
2,572
10,715
17,155
Grate Area Sq. Ft. 16.4 18.1 20.5 22.5 25.6 28.4 30.9 33.2 37.4 41.2 44.7 48.0
Furnace Volume Cu. Ft. 58.9 68.0 89.3 104.7 115.6 139.2 160.7 186.5 234.0 301.6 348.6 383.8
Heat Release MBH/Cu. Ft. 52.3 53.0 49.1 49.2 55.6 55.5 56.0 55.1 55.0 51.2 51.6 53.6
Water Content - Gals. Steam
Water
421
520
492
607
602
740
Approx. Dry Weight - Lbs. 8,150 9,800 10,550 12,350 14,850 16,150 19,700 21,900 25,450 30,600 37,250 42,300
Approx. Full Weight - Lbs. Steam
Water
11,645
12,470
13,910
14,865
Grates for hand firing are not supplied by Burnham Commercial
Select boiler on net rating to match building heat loss or installed radiation.
See additional note regarding heat value of coal on back page
15,565
16,715
662
715
712
875
18,280
19,640
• 1 psi steam, 0 psi water
• Ample firebox assures non-critical combustion,
high efficiency
337
1,405
2,245
96
100
133
168
4,325
4,615
3,214
13,390
21,435
827
893
761
1,003
21,190
23,200
404
1,685
2,695
115
120
149
200
4,920
5,905
3,859
16,080
25,740
993
1,072
925
1,220
23,845
26,295
468
1,950
3,120
133
139
171
231
5,555
6,055
4,496
18,730
29,990
1,157
1,250
1,050
1,330
28,480
30,715
538
2,240
3,590
153
160
197
267
6,240
6,820
5,141
21,420
34,290
1,323
1,429
1,227
1,554
32,132
34,860
649
2,700
4,330
183
193
209
283
6,895
7,510
6,427
26,780
42,870
1,654
1,786
1,443
1,826
37,450
40,640
744
3,100
4,960
210
221
239
323
7,545
8,245
7,713
32,135
51,445
1,985
2,143
1,720
2,147
44,935
48,490
831
3,460
5,540
235
247
267
362
8,460
9,250
8,996
37,485
60,005
2,315
2,500
1,979
2,473
53,740
57,855
922
3,840
6,150
260
274
295
401
9,100
9,985
10,278
42,825
68,555
2,645
2,857
2,173
2,718
60,400
64,920

Model 4NP-68
Boiler Model
Series 4N The — Biomass/Wood Complete Boiler Ratings Room Supplier
Gross Ratings
MBH HP
Steam
Lbs./Hr.
Firing Rate
Lbs./Hr.
Fireside Heating
Surface
Sq. Ft.
0
Furnace
Volume
Cu. Ft.
Water Content-Gallons
Dry Weight
Water Steam Lbs.
4NP625-68 3,077 92 3,171 653 625 148.5 941 764 16,211
4NP925-68 4,554 136 4,693 967 925 186.6 1,195 1,006 19,675
4NP1250-68 6,153 184 6,342 1,306 1,250 238.0 1,486 1,888 24,562
4NP1538-68 7,571 226 7,803 1,607 1,538 315.7 1,789 1,450 27,390
4NP1850-68 9,107 272 9,386 1,934 1,850 407.7 2,118 1,681 32,595
4NP2153-68 10,599 317 10,923 2,250 2,153 471.9 2,609 2,056 39,030
4NP2500-68 12,307 368 12,684 2,613 2,500 521.3 2,820 2,209 40,190
4NP3075-68 15,138 452 15,601 3,214 3,075 500.4 3,406 2,586 46,370
4NP3690-68 18,165 543 18,721 3,857 3,690 574.1 3,842 2,901 55,000
4NP4305-68 21,193 633 21,842 4,499 4,305 716.2 4,465 3,381 61,996
Model 4NL/W-68
Boiler Model
Gross Ratings
MBH HP
Steam
Lbs./Hr.
Firing Rate
Lbs./Hr.
Fireside Heating
Surface
Sq. Ft.
Furnace
Volume
Cu. Ft.
Water Content-Gallons
Water Steam
4NL/W63-68 222 6.6 228 47 47 8.8 2,265 2,055
4NL/W78-68 271 8.1 279 57 55 10.7 2,650 2,390
4NL/W92-68 315 9.4 325 67 64 12.6 3,020 2,700
4NL/W107-68 364 10.9 375 77 74 14.6 3,500 3,140
4NL/W127-68 473 14.1 487 100 96 18.3 2,895 3,605
4NL/W154-68 566 16.9 583 120 115 21.9 4,465 4,040
4NL/W180-68 655 19.6 675 139 133 25.3 5,025 4,525
4NL/W209-68 753 22.5 776 160 153 29.1 5,620 5,040
4NL/W240-68 901 26.9 928 191 183 34.7 6,250 5,635
4NL/W277-68 1,034 30.9 1,065 219 210 39.7 6,985 6,285
4NL/W311-68 1,157 34.6 1,192 246 235 44.4 7,910 7,120
4NL/W345-68 1,280 38.2 1,319 272 260 49.1 8,535 7,650
4NL/W397-68 1,954 58.4 2,014 415 397 58.9 10,830 10,005
4NL/W463-68 2,279 68.1 2,349 484 463 68.0 13,055 12,100
4NL/W563-68 2,772 82.8 2,856 588 563 89.3 14,665 13,515
4NL/W662-68 3,259 97.4 3,359 692 662 104.7 17,390 16,030
4NL/W827-68 4,071 121.6 4,196 864 827 115.6 20,645 18,630
4NL/W993-68 4,888 146.0 5,038 1,038 993 139.2 23,455 21,005
4NL/W1157-68 5,696 170.1 5,870 1,209 1,157 160.7 27,675 25,340
4NL/W1323-68 6,513 194.6 6,712 1,383 1,323 186.5 31,540 28,815
4NL/W1654-68 8,142 243.2 8,392 1,729 1,654 234.0 36,900 33,710
4NL/W1985-68 9,772 291.9 10,071 2,075 1,985 301.6 44,370 40,815
4NL/W2315-68 11,396 340.4 11,745 2,420 2,315 348.6 53,385 49,270
4NL/W2645-68 13,021 389.0 13,419 2,764 2,645 383.8 60,120 55,590
4NL/W3075-68 10,215 305.1 10,528 2,169 2,075 505.6 78,710 71,630
NOTES:
1. Boiler model suffix “68” indicates 6.8 SQ.FT.F.S.H.S./HP
2. Firing rate based on biomass/wood fuel at 6000 BTU/LB and 78.5% operating efficiency
. Furnace volume is measured from the bottom of the boiler mudleg

Series 4N Natural Draft Firebox Boiler
hand Fired Boilers — Rating Adjustment for
heating Value of Coal
Hand fired ratings are based on coal having a heat value
of 1 ,000 btu per pound. For coal of lesser heat value
per pound, multiply the net load by the factor shown in
the table before selecting boiler size:
Heat Value of Coal - BTU/Lb. Factor
12,500 1.04
12,000 1.08
11,500 1.13
11,000 1.18
10,500 1.24
10,000 1.30
9,500 1.37
9,000 1.44
Standard Equipment
Boiler: Three-pass boiler constructed and stamped in
accordance with Section IV of the ASME Boiler and
Pressure Vessel Code for 1 psi steam and 0 psi
water with separate base, rear smoke outlet (top outlet
available when specified), gas tight front flue cleanout
door, rear observation port 6 A through A, rear
access door with observation port 97A and larger,
lifting lugs 1 7A and larger.
Instantaneous hot Water heating Coils
Coil Number
*For Use in the Following Boiler Sizes
Subject to Capacity Limitation of Boiler
1
Jacket: Wrap-around type, with fiberglass
insulation—installed.
Steam Trim: Steam pressure gauge ( -1/ inch 6 A
through 66 A; 6 inch 8 7 and larger), gauge glass set
for mounting on boiler with 6 A through A, cast iron
water column with gauge glass set and tricocks 97A
and larger, and ASME safety valve(s). Trim not installed.
Water Trim: Theraltimeter ( -1/ inch) 6 A through
66 A, pressure/altitude gauge (6 inch) and thermometer,
(6 inch) 8 7 and larger, ASME relief vavle(s). Trim not
installed.
Additional Equipment
Oil & Gas Fired Boilers - Burner opening in front head
(base refractory or combustion equipment is not supplied
by Burnham Commercial).
Stoker Fired Boilers - Firedoor(s) in front head; hinged
flue door, all sizes; ashpit door in base (Stoker not
supplied by Burnham Commercial).
Hand Fired Boilers - Same as stoker fired (Grate sets
not supplied by Burnham Commercial).
Rated Capacity—Gallons Heated
40° to 140°F
Boiler Water Temp.
108°F
GPM
180°F
GPH
INA-210 All sizes 3.5 210 325
INA-300 All except 4N-63A 5.0 300 466
INA-360 All sizes 6.0 360 560
INA-450 All except 4N-63A 7.5 450 700
INA-600 4N-154A and larger, also 4N-107A 10.0 600 933
212°F
GPH
INA-750 4N-154A and larger, also 4N-107A 12.5 750 1165
INA-900 4N-92A and larger 15.0 900 1400
INA-1125 4N-154A and larger 18.7 1125 1750
INA-1350 4N-277AS and larger, also 4N-209A 22.5 1350 2100
INA-1500 4N-345A and larger 25.0 1500 2330
*Two coils of any size or combination of sizes may be installed in N-11 7 and larger

Lancaster, PA 17601
Phone: 888-791- 790
www.burnhamcommercial.com
Series 4N Natural Draft Firebox Boiler

Series 4NP Natural Draft Firebox Boiler
4NP Boiler Models 625 925 1250 1538 1850 2153 2500 3075 3690 4305
A - Boiler Length 1 1 1 16 16 169 177 19 191 1
B - Boiler Supply Height 9 10 11 1 7 1 1 1 1 1 1 1 1 1 1 1
C - Base Length at Mudleg 1 1 6 1 1 1 1 1 166 161 18 1
D - Boiler Width at Mudleg 6 68 7 80 86 9 9 10 10 110
E - Firebox Width 8 60 66 7 78 78 90 90 96
F - Firebox Length 11 1 1 9 1 0 1 0 1 8 1 1 8 171 00
G - Firebox Height 0 6 66 66 66
H - Supply Location 6 71 7 7 77 79 87 86 98 11
J - Supply Nozzle Size (300lb. Flg.) 6 6 6 8 8 8 8 10 10
K - Return Connection Location 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/ 1-1/
M - Return Connection Size 1-1/ 1-1/ 1-1/ -1/
N - Front Smokebox Depth 10 10 1 1 1 1 1 16 16 16
P - Tube Removal Space 117 1 8 1 1 1 1 1 9 1 1 7 170 199
Q - Rear Flue Outlet Diameter 7 9 8 8 8 1
R - Base to Flue Centerline 67- / 7 -1/ 81-1 /16 91- /8 109-9/16 11 -9/16 11 -9/16 107-7/16 107-7/16 107-7/16
S - Normal Water Line 76-1/ 8 -7/8 9 - /16 10 -1/ 1 1-1/ 1 -1 /16 1 -1 /16 1 - /8 1 - /8 1 - /8
AA - Width Over Columns 81 87 9 99 10 111 111 1 1 1
BB - Front and Rear Column Location 17 17 17 17 17 17 17 17 17 17
CC - Middle Column Location 6 61 69 6 78 8
Approximate Dry Weight (Lbs.) 16, 11 19,67 , 6 7, 90 , 9 9,0 0 0,190 6, 70 ,000 61,996
Approximate Weight, Full (Lbs.) , 7 8,0 , 8 9, 69 6, 98 6,1 6 8, 91 67,911 79,16 90,160
All specifications, dimensions and data subject to change without notice. Dimensions shown are measured in inches.

BOILER
MODEL
The Complete Boiler Room Supplier
GROSS RATINGS NET RATINGS
MBH HP
LBS.
STM./
HR.
STEAM
MBH
Series 4NP
SQ. FT.
STEAM
MAX. FIRING RATE - SINGLE
FUEL
GAS
MBH
#2
OIL
GPH
#6
OIL
GPH
#LBS/
HR.
COAL*
HEAT-
ING
SUR-
FACE
SQ. FT.
FIRE
SIDE
FURNACE
VOLUME.
CU. FT.
WATER
CONTENT
GALLONS
(STEAM)
NP6 -6 , 8 100 , 0 , 98 10,8 ,18 0. 7.9 8* 6 1 8. 76
NP9 -6 ,0 1 1 0 ,17 ,896 16, 6, 76 . 1.8 9 * 9 186.6 1,006
NP1 0-6 6,69 00 6,900 ,19 1,6 6 8, 69 60.6 .8 6 6* 1, 0 8.0 1,188
NP1 8-6 8, 69 0 8,6 6, 9 7,0 8 10, 61 7 .8 69.7 8 0* 1, 8 1 .7 1, 0
NP18 0-6 10,0 00 10, 0 7,79 , 71 1 , 91.0 8 .7 98 * 1,8 0 07.7 1,681
NP 1 -6 11,716 0 1 ,07 9,09 7,88 1 ,6 106.1 97.6 11 8* ,1 71.9 ,0 6
NP 00-6 1 , 90 00 1 ,800 10, 91 , 96 16,7 8 1 1. 111.6 1 1 * , 00 1. , 09
NP 07 -6 16,7 8 00 17, 0 1 ,989 ,1 1 0,9 1 1.6 1 9. 1,6 0* ,07 00. , 86
NP 690-6 0,08 600 0,700 1 , 86 6 ,9 ,106 181.9 167. 1,968* ,690 7 .0 ,901
NP 0 -6 , 700 ,1 0 18,18 7 ,767 9, 91 1 . 19 . , 96* , 0 716. , 81
NP6 - 0 ,18 1 , 1 , 7 1 , 9 , 0 7.9 .9 8 ** 6 1 8. 76
NP9 - 0 6,19 18 6, 8 ,806 0,0 7,7 1 6.1 1.6 17** 9 186.6 1,006
NP1 0- 0 8, 69 0 8,6 6, 9 7,0 8 10, 61 7 .8 69.7 6 ** 1, 0 8.0 1,188
NP1 8- 0 10,0 00 10, 0 7,79 , 71 1 , 91.0 8 .7 676** 1, 8 1 .7 1. 0
NP18 0- 0 1 , 86 70 1 ,76 9,61 0,0 0 1 , 8 11 . 10 . 8 ** 1,8 0 07.7 1,681
NP 1 - 0 1 , 9 0 1 ,8 11,170 6, 17,99 1 0. 119.9 969** ,1 71.9 ,0 6
NP 00- 0 16,7 8 00 17, 0 1 ,989 ,1 1 0,9 1 1.6 1 9. 1,1 7** , 00 1. , 09
NP 07 - 0 0,08 600 0,700 1 , 86 6 ,9 ,106 181.9 167. 1, ** ,07 00. , 86
NP 690- 0 , 700 ,1 0 18,18 7 ,767 9, 91 1 . 19 . 1, 77** ,690 7 .0 ,901
NP 0 - 0 8, 8 0 9, ,080 9 ,001 , 68 7.7 7.1 191 ** , 0 716. , 81
NOTES:
1. Boiler model suffix “62” indicates 6.15 sq. ft. F.S.H.S. /HP and “50” indicates 5 sq. ft. F.S.H.S./HP
. Firing rate based on:
Natural gas @ 1000 BTU/cu. ft. and 80% heat transfer efficiency
#2 oil @ 138 MBH/gal. and 80% heat transfer efficiency
#6 oil @ 150 MBH/gal. and 80% heat transfer efficiency
* 100% coal input @ 13,000 BTU/pound and 78.5% heat transfer efficiency (6.15 rating)
** Coal input @ 1 ,000 BTU/pound limited to 70% of input in order to develop sq. ft. rating.
. Furnace volume is measured from the bottom of the boiler mud leg (no deduction for bridgewall)
. Approximate dry weight includes H columns and base casing.
Lancaster, PA 17601
888-791- 790
www.burnhamcommercial.com

C Series
Compact Package Boiler

C Series Compact Packaged Boiler
America’s Boiler Company
The Burnham Commercial C Series compact packaged
boiler was designed using our 1 0+ years of boiler
experience and is sold and serviced through the largest
and most experienced network of sales representatives in
the country. With a complete commercial product offering
and unmatched sales and technical support, it’s no wonder
why we are America’s Boiler Company!
Packaged Boilers That Can Actually Fit
Through A Door!
The C Series Firetube boiler is fully packaged and
designed to provide maximum cost and energy efficiency.
The C Series boiler fits through any standard 36” x 80”
doorway, eliminating the need for any costly building
alterations or difficult site assemblies. This convenient size
allows for easier and less expensive retrofit or upgrade of
an existing boiler room.
A forced-draft unit, the C Series avoids the expense of a tall
stack and is much more economical to operate and install
than atmospheric-fired boilers. The forced draft creates a
more controlled combustion, and a more thorough mixture
of fuel and air is acheived resulting in optimum efficiency.
Other design features help maintain this durability and
economy over the years. While the original efficiency of
some other boilers can decrease when outer wrappers
develop air leaks and tubes cannot be cleaned thoroughly,
the C Series overcomes these problems. Built to ASME
standards, its outer shell of heavy welded steel boilerplate
and extra heavy tube sheets assure the continued airtight
conditions necessary for efficient combustion. Opening the
front flue door allows convenient access to the firetubes. By
brushing out all of the firetubes, the original efficiency of the
boiler is restored in a matter of minutes. All tube ends are
rolled in accordance with the ASME code and are inspected
for hydraulic tightness by an independent insurance
inspector, prior to shipping.
These installation, operation and maintenance features add
up to real savings for you. Factory testing assures you that
the boiler will deliver clean, quiet and reliable heat from the
day it’s installed.
6
FRONT REAR

C Series Anticipated Efficiencies
C Series Features
Boiler:
Three-pass firetube type, constructed with heavy steel, in accordance
with requirements of the ASME Code. All units are
registered with the National Board.
Water cooled sidewalls in the rear turnaround promote rapid
internal circulation and reduce gas temperatures at the entrance
to the second pass, reducing tube end stress. All tube
ends are rolled and flared.
Easy-opening insulated front and rear flue doors with light
weight non-refractory closure provide full access to all tubes.
No elaborate seals are used. The C Series oversized furnace
easily accommodates any burner.
Washouts are provided for easy inspection and cleaning of
waterside surfaces.
All steam boilers are provided with a dry pan to ensure dry
steam. A feedwater diffuser is provided on steam boilers. All
water boilers are equipped with a dip tube at supply outlet and
diffuser at return inlet.
The round vertical smoke outlet has room for an optional
quadrant damper. All boilers are provided with lifting holes and
Efficiencies and Features
25%
NATURAL GAS
50% 75% 100%
Boiler HP 10 psig 180°F Water 10 psig 180°F Water 10 psig 180°F Water 10 psig 180°F Water
20 8 . 8 . 8 . 8 . 8 . 8 .8 8 .6 8 .1
30 8 .7 8 .7 8 .8 8 . 8 . 8 .9 8 .7 8 .1
40 8 .9 8 .8 8 .9 8 . 8 . 8 .9 8 .7 8 .1
50 8 .1 86.0 8 .1 8 .7 8 .7 8 .1 8 .0 8 .
60 8 . 86.1 8 . 8 .9 8 .0 8 . 8 . 8 .8
70 8 . 86.1 8 . 8 .8 8 .9 8 . 8 . 8 .7
80 8 . 86. 8 . 8 .9 8 .9 8 . 8 . 8 .7
90 8 .6 86. 8 .6 86.1 8 . 8 .7 8 .8 8 .
100 8 .7 86. 8 .8 86. 8 .6 86.0 8 . 8 .6
#2 OIL
25% 50% 75% 100%
Boiler HP 10 psig 180°F Water 10 psig 180°F Water 10 psig 180°F Water 10 psig 180°F Water
20 86.0 88. 86. 87.9 86.0 87. 8 . 86.9
30 86.7 88.6 86.7 88. 86. 87.8 8 .8 87.
40 86.8 88.7 86.8 88. 86. 87.9 8 .9 87.
50 87. 89.0 87.1 88.6 86.8 88. 86. 87.7
60 87. 89. 87. 88.9 87.1 88.6 86.7 88.1
70 87. 89. 87. 88.9 87.1 88. 86.6 88.0
80 87. 89. 87. 88.9 87.1 88. 86.7 88.0
90 87.8 89. 87.8 89. 87.6 89.0 87. 88.6
100 88.0 89.7 88.0 89.6 87.9 89. 87.6 89.0
7
an enameled steel jacket installed over fiberglass insulation.
The boiler is mounted on a heavy-duty structural steel base
with extended skid and burner platform for protection of the
burner during shipment and rigging.
Standard Trim and Controls:
Steam: 1 7 pump control/low water cut-off with alarm contacts—piped
with quick opening blowoff valve. Gauge glass
set with hand-operated gauge and try cocks. Steam pressure
gauge—4 ½-inch dial. L404A operating pressuretrol, L404C
manual reset high limit pressuretrol and appropriate firing rate
control when required. Manual reset probe auxiliary
low water cut-off.
ASME side outlet safety valve(s).
Water: 63M manual reset low water cut-off—piped with quick
opening blowoff valve. Combination pressure/temperature
gauge—3 ½ inch dial. L4006A operating aquastat and L4006E
manual reset high limit aquastat and appropriate firing rate
control when required.
ASME side outlet relief valve(s).

C Series Ratings
BHP A B C
C-Series Ratings & Dimensions
Gross
Output
MBH
Gross
Output
Lbs/Hr
Net Rating
Water
MBH
8
Net Rating
Steam
MBH
Sq Ft Net
Steam
Firing Rate
MBH - Gas
Firing Rate
GPH -
#2 Oil
20 0 66- /8 7 - /8 670 690 8 0 ,166 816 .7
30 0 66- /8 8 - /8 1,00 1,0 87 780 , 9 1, 8.
40 -1/ 7 -7/8 90-1/8 1, 9 1, 80 1,16 1,0 0 , 1,6 11.
50 -1/ 7 - /8 100- /8 1,67 1,7 1, 1, 99 , 1 ,0 1 1 .
60 -1/ 7 - /8 11 -1/8 ,009 ,070 1,7 7 1, 9 6, 97 , 9 17.1
70 -1/ 78-1/ 11 - /8 ,009 , 1 ,0 8 1,819 7, 80 ,8 8 19.9
80 -1/ 78-1/ 1 -1/8 ,678 ,760 , 9 ,079 8,66 , 66 .8
90 -1/ 78-1/ 1 -1/8 ,01 ,10 ,6 0 , 9 9,7 6 ,67 .6
100 -1/ 78-1/ 1 -1/8 , 8 , 0 ,911 , 99 10,8 9 ,08 8.
A
OVERALL
WIDTH
FRONT VIEW
© 00 Burnham Commercial
Lancaster, PA 1760
Phone: 888-791- 790
www.burnhamcommercial.com
B
MAX.
HEIGHT
C
OVER SKID
PLAN VIEW
SIDE VIEW

Component Summary Information
A boiler is not only a significant plant expenditure, but it is the most important element of any mechanical heating/process
system. The continued reliability of the boiler is heavily dependent upon the quality and chemistry of the water within
the system. Burnham Commercial features a complete line of boiler room accessory products designed to match the
performance needs of your Burnham Commercial boiler. Proper use and installation of this equipment can significantly
improve system efficiency and boiler longevity.
Burnham Deaerator Systems are designed to protect your Burnham boiler and steam
system from the corrosion caused by the presence of non-condensable gases. A solution of
oxygen in water is very corrosive to metals widely used in stem systems. Use of deaerator
systems pay for themselves in fewer downtime hours, less chemical additives and reduced
maintenance to the entire steam system.
Burnham Water Softener Systems are designed to produce conditioned water to reduce the minerals
which produce detrimental scale formation on the heat transfer surfaces in the boiler. Use of a
water softener reduces the need for other chemical scale control additives.
Burnham Chemical Feed Systems enable treatment of boiler feedwater with chemicals
that protect against boiler scaling and corrosion. Amount and type of chemical treatment
will vary depending upon the individual application.
Burnham Boiler Feedwater Systems are designed to efficiently store and return hot
condensate in combination with make-up water to automatically meet boiler water demands.
Use of boiler feedwater systems can account for significant fuel savings and lower total
chemical treatment costs.
Burnham Condensate Return Systems are complete systems designed to increase
the energy/water saving circuit for steam heating or process systems and minimize
difficulties from boiler encrustation by recycling previously-treated system water.
Burnham Blow Down Systems are designed to eliminate mineral build-up from
dissolved solids that would cause scale and boiler corrosion. They are available in
two basic types: Bottom Blow Down designed for forceful removal of bottom residue
and Surface Blow Down/Heat Recovery which is an ongoing process that removes
dissolved solids from the top level of water in the boiler while providing a heat recovery
function as well.
9

Typical Steam System Layout
Water Softener
System
Deaerator System
Surge System
Condensate Return
System
Bottom Blow
Down
0
Surface Blow
Down/Heat
Recovery
System
Chemical
Feed System
Boiler Feedwater
System
Boiler

Boiler Accessories
1

Chemical Feed System
Continuous Run & On-Off Boiler
Feedwater Pump Applications
• Equipment to dose chemicals to treat boiler
feedwater.
• Introduces chemicals to the boiler or boiler
feedwater piping.
• Vertical 0 gallon polyethylene tank on stand with
lid (other size tanks and tank materials available).
• 5/8” piston pump, adjustable from 0 to 6.2 gallons
per hour (GPH) (other size and capacity of piston
and diaphragm pumps available).
• Piston pump to 1000 psig (various stainless steel
heads available as an option).
• Modular configuration to meet customer
requirements includes: tank with lid on stand,
piston pump, factor suction piping and agitator
Continuous Run only: control panel and
make-up water meter.
• Can be custom configured to meet customer
requirements.
• More than one pump may be mounted under a
0 gallon tank.
• 1/ HP, totally enclosed non-ventilated (TENV),
11 /1/60 volt motor standard ( 0 hertz and many
other motor options available).
• Factory suction piping includes: strainer and
safety relief valve.
• Agitator: angle or clamp mounted, 1/ HP TENV,
11 /1/60 volt motor standard ( 0 hertz and many
other motor options available).
• Pump control via make-up water meter signal to
panel-mounted timer.
• Continuous Run - NEMA 1 control panel
includes: mixer and pump switches, motor relays,
fuses, terminal strip and timer.
• On-Off - Control panel and water meter available
as options.

Specifications
Chemical Feed System
(Continuous Run & On-off Boiler Feedwater Pump Applications)
Capacity in Gallons Wall
Dimensions
A B C D
Part Number Tank and Lid only
30 1/8” 18 30 12 49 103 030
55 1/8” 22 34 17 60 305 050
100 1/4” 28 42 18 70 310 0100
150 1/4” 31 47 18 75 315 0150
200 1/4” 36 48 20 77 320 0200
275 1/4” 42 48 20 77 327 0275
360 1/4” 48 48 20 77 336 0360
500 5/16” 54 60 20 89 350 0500
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com

Bypass and Shot Feed Systems
For applications requiring bulk feeding of chemicals to a pressure system
Bypass Chemical Feeders
• Bypass chemical feeders include: tank, gauge
glass, control and sample valves and funnel.
• Used in applications where a continuous supply
of chemical is needed in a closed loop or low
makeup system.
• Flow adjustments of chemicals are made
manually with the flow regulator.
Shot Feeders
• Shot feeders include: tank, sample valve and
funnel.
• Used to add a slug of chemicals into a low
makeup or closed loop systems.
• Shot feeders are constructed of steel and have
a rated working pressure of 1 psig.

Bypass Feeder
3/4 Gallon
Item Description Qty.
1 Tank 1
2 Funnel 1
3 1/2” Pipe Nipple 4
4 1” x 1/2” Reducer Bushing 1
5 Petcocks 2
6 1/2” Valve 2
7 1/2” Tee 1
8 1/2” Coupling 4
Bypass and Shot Feed Systems
Item Description Qty.
1 Tank 1
2 Funnel 1
3 Petcocks 2
4 1” Pipe Nipple 2
5 1” Valve 2
6 Gauge Valve 2
7 Sight Glass 1
8 Glass Guards 2
9 1” x 3/8” Reducer Bushing 1
10 3’8” Pipe Nipple 3
11 3’8” Union 1
12 Flow Control Valve 1
13 3/8” valve 1
14 1/2” Coupling 3
15 1” Coupling 2
Dimensions in Inches
Tank Size
(gallons)
A
(Dia.)
B
(Lht.)
1 6 10
1-1/2 6 12
2 8 10
2-1/2 8 12
5 10 15
10 10 29
18 14 32
25 18 28
NOTE: gallon and larger feeders have 1 " legs. All dimensions are approximate
1 - 25 Gallon
Dimensions in Inches
Tank Size
(gallons)
A
(Dia.)
B
(Lht.)
1 6 10
1-1/2 6 12
2 8 10
2-1/2 8 12
5 10 15
10 10 29
18 14 32
25 18 28
NOTE:
1. All dimensions are approximate
. All dimensions are in inches
Item Description Qty.
1 Tank 1
2 Funnel 1
3 1” Pipe Nipple 3
4 Petcocks 2
5 1” Valve 2
6 1/2” Coupling 3
7 1” Coupling 2
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com

Boiler Feedwater System Features
• Complete system including: vessel, pump(s),
stand, trim, and control panel
• Acts as a reservoir for condensate return,
make-up water, and boiler feedwater
• Horizontal, stand-mounted, atmospheric
configuration. Vessel unbolts from stand for
ease of replacement and installations
• Dished head, factory pressure tested, non-code
stamped vessel–standard. ASME, Section VIII
Code stamped vessels, corrosion resistant
vessels available
• Model range: gallon through 1, 8 gallon
BhTS
Boiler Feedwater Systems
• Water storage to full overflow: 15 minutes
• Factory piped pump re-circulation
• Oversize pump suction lines
• Additional opening for future applications
• Auxiliary relief vent(s)
• Can be custom configured to meet
customer requirements
• Factory insulation and jacketing available
• Option to pre-heat boiler feedwater
6
BhFS

Condensate Return System
Condensate Return System Features
• Many motor and voltage options
available.
• Many trim, electrical and control panel
options available.
• Modular configuration to meet customer
requirements includes: tank, pump(s),
float control/alternator, control panel
and trim options.
• Pump options:
- 17 0 RPM - 1/ HP/1. GPM at
10 psig through HP/7 GPM at 0 psig
- 0 RPM - 1/ HP/1. GPM at
10 psig through 10 HP/1 0 GPM at 60 psig
• Inexpensive/efficient mechanism for the capture and return of condensed steam.
Units may be converted to act as a small boiler feedwater units.
• “NO OPTION/QUICK SHIP” units available (15 to 21 gallon cast iron tank, 10 and 16 gallon steel tank,
simplex or duplex, single phase with float switch, NO ALTERNATOR; 6 gallon cast iron
• Available in either rectangular steel tank (16- 0 gallon) or rectangular cast iron tank (1 -110 gallon).
7

Blowdown heat Recovery System
Flash Economizer
• Reduces dissolved solids from the top level of
water in the boiler.
• Recovers heat from surface blowdown to heat
boiler feed or make-up water.
• ASME Section VIII code-stamped flash
separator and coil.
• Separator is sized to accommodate a given
percent surface blowdown/flow rate from boiler
operating pressure to a given vent psig.
• Coil is sized to accommodate make-up flow rate
at between 8 and 18 psig pressure drop.
• Model Range: HR- 9 ( GPM blowdown/9
GPM make-up) through HR- 01 0 ( 0 GPM
blowdown/1 0 GPM make-up).
• Complete system configured to include:
flash separator mounted above and flanged
to a stainless steel or copper coil on stainless
steel stand with trap, ball valve, gauge glass,
safety valve, thermometers and factory piping.
• Stainless steel striking plate standard.
• Flash separator flanged to coil section for ease or
removal for cleaning.
• Openings to facilitate cleaning and
inspection standard.
• Options include multiple boiler manifold and
mounting of conductivity controller.
8

Specifications
Model
Blowdown
Capacity
GPM
Blowdown heat Recovery System
(Flash Economizer)
Make-up
Capacity
GPM
Pressure
Drop* A B C D E F G H
HR-39 3 9 9 psi 97 50 36 10 1 2-1/2 1 1
HR-315 3 15 9 psi 96 44 44-1/4 8 1 2-1/2 1 3/4
HR-612 6 12 8 psi 111 53 46 12 1-1/2 3 1 1-1/4
HR-630 6 30 10 psi 110 49 50 10 1-1/2 3 1 3/4
HR-1020 10 20 13 psi 106 50 44 16 1-1/2 4 2 1-1/2
HR-1050 10 50 10 psi 100 44 42 16 1-1/2 4 2 1-1/4
HR-2040 20 40 18 psi 140 67 62 18 1-1/2 6 2 2
HR-20100 20 100 10 psi 140 67 62 18 1-1/2 6 2 1-1/2
HR-3060 30 60 15 psi 172 76 85 18 1-1/2 6-8 2 1-1/2
HR-30150 30 150 18 psi 132-1/2 67 53-1/4 24 1-1/2 6-8 2 2-1/2
* Across water coil at maximum flow
Constructed in accordance with ASME Code, Secion VIII, Division 1, for MAWP of 150 PSIG.
Hydrostatic tested at PSIG. Safety Relief Valve set at 1 0 PSIG.
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
9

Bottom Blowdown Tank
• Eliminate precipitated solids from the bottom
of the boiler.
• Cools blowdown to 1 0°F or below before
dumping to drain by storing one entire blowdown
in a reservoir and using it to cool the next
blowdown.
• ASME Section VIII code-stamped tank.
• Sized either to accommodate one complete
boiler blowdown or to satisfy New Jersey
regulations.
• Model Range:
18” diameter x 24” height through
72” diameter x 92” height
• Modular configuration to meet customer
requirements includes: tank, legs, gauge glass
and pressure gauge.
• Can be custom configured to meet customer
requirements.
• Stainless steel striking plate standard.
• Openings to facilitate cleaning and inspection
standard.
• Safety valve and thermometer may be included
as options.
60

New Jersey Regulations for Blowdown Tanks
• Closed or Pressure Type - A Blowdown Tank subjected
to the maximum steam boiler pressure must be
constructed for such pressure and stamped with either
New Jersey, National Board or ASME Standard.
• When the blowdown from any steam boiler is disposed
in a sewer or other interconnected system, a Blowdown
Tank must be placed between the boiler and the sewer
or system.
• The minimum metal thickness of Blowdown Tanks,
whether pressure or atmospheric, must not be less
than 5/16”.
• Atmospheric or Vented Type - The outlet from the
Blowdown Tank shall be twice the area of the boiler
blowdown pipe and made to extend internally within
6” from the bottom of the tank.
• A vent pipe, at least twice the diameter to the inlet,
shall lead to the outside atmosphere.
• Vents shall be as direct as possible to the outside of the
atmosphere and discharge at a point not less than
seven feet above the adjacent walkway or areas
without a valve or other possible obstruction such as a
water pocket.
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
61
• General - All Blowdown Tanks, whether of the closed
or vented type should be of the following dimensions
in relation to the boiler rating, and must have approved
openings for cleaning and inspections:
Boiler
Pressure
PSIG
100
1 0
00
0
00
0
00
Blow-off
Line Pipe
Size
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/2”
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/2”
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/2”
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/2”
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/2”
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/2”
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/2”
Vent Pipe
Size
2-1/2”
3”
3-1/2”
4”
5”
6”
3”
3-1/2”
4”
5”
6”
8”
3”
4”
5”
6”
8”
8”
3-1/2”
4”
5”
6”
8”
10”
3-1/2”
5”
6”
8”
8”
10”
4”
5”
6”
8”
10”
10”
4”
5”
6”
8”
10”
10”
Outlet
Pipe Size
3”
3”
4”
5”
6”
6”
3-1/2”
4”
5”
6”
8”
3”
4”
5”
6”
8”
8”
3”
4”
5”
6”
8”
10”
3-1/2”
5”
6”
8”
8”
10”
4”
5”
6”
8”
8”
10”
4”
5”
6”
8”
8”
10”
Diameter
of Tank
20”
24”
30”
42”
48”
54”
20”
24”
36”
42”
54”
60”
20”
30”
36”
42”
48”
60”
24”
30”
42”
48”
54”
60”
24”
30”
42”
48”
60”
66”
24”
30”
42”
48”
60”
72”
24”
30”
42”
48”
66”
72”
Height
of Tank
3’6”
4’0”
4’2”
4’0”
4’6”
6’0”
3’6”
5’0”
5’0”
5’0”
5’6”
6’0”
4’3”
4’6”
5’0”
6’0”
7’3”
7’0”
4’0”
4’6”
4’6”
5’0”
7’0”
7’2”
4’6”
5’6”
5’0”
5’6”
6’3”
7’8”
5’0”
5’6”
5’6”
6’2”
6’10”
7’0”
5’6”
6’0”
6’0”
6’4”
6’0”
8’0”
Boiler Rating
HP Cu. Ft. Minimum Size Tank Gallons
- 0 . 18” diameter x 24” 6.
1 - 0 7.7 24” diameter x 30” 9
1 - 100 1 .7 30” diameter x 36” 110
101 - 00 1.6 36” diameter x 36” 160
01 - 00 .8 36” diameter x 42” 18
01 - 800 9. 42” diameter x 48” 88
801 - 1000 6 .0 48” diameter x 60” 70

• Reduces steam pressure or vents process steam
directly to atmosphere.
• Eliminates moisture from process steam
(cyclonic spinning mechanism permits the use
of smaller tanks to completely separate flash
steam from condensate).
• ASME Section VIII “UE” stamped separator
standard up to model BFS-16- 6.
• ASME Section VIII “U” stamped separator
standard for models BFS-16- 6 and above.
• Sized to accommodate a given #/hour flow rate
of steam from a given source psig to a given
vent psig.
• Model Range:
6” diameter x 34” high through
36” diameter x 108” high.
Flash Separator
• Modular configuration to meet customer
requirements includes a flash separator and the
following options: trap, check valve, ball valve,
safety relief valve and gauge glass.
6
• Can be custom configured to meet customer
requirements.
• Stainless steel striking plate standard.

Pressure To...
700
600
00
00
00
00
100
0
0
1
7
0.0
#/Hour
Condensate
Height
100,000
Diameter
Drain
Vent
Height
90,000
Diameter
Drain
Vent
Height
80,000
Diameter
Drain
Vent
Height
70,000
Diameter
Drain
Vent
Height
60,000
Diameter
Drain
Vent
Height
50,000
Diameter
Drain
Vent
Height
40,000
Diameter
Drain
Vent
Height
30,000
Diameter
Drain
Vent
Height
20,000
Diameter
Drain
Vent
Height
10,000
Diameter
Drain
Vent
Height
5,000
Diameter
Drain
Vent
Height
3,000
Diameter
Drain
Vent
Height
2,000
Diameter
Drain
Vent
Height
1,000
Diameter
Drain
Vent
Height
500
Diameter
Drain
Vent
Pressure From...
800
.
700 600 500 400 300 200 100 75 50 25
. .7
7.9 . .9
10.8 8. 6.0 .
1 .1 11.9 9. 6.7 .7
18.0 1 .8 1 . 10.9 7.9 .
.1 1.0 18.8 16. 1 . 10. 6.0
6.9 .9 .7 0. 17.6 1 . 10. .6 .
9.0 7.0 .9 .6 19.9 16.7 1 .8 7.1 .1 .6
1.1 9. 7.1 .8 . 19.0 1 . 9.6 7.6 . 1.8
.6 0.7 8.6 6. .8 0.7 16.9 11. 9. 7.0 .7
. . 0. 8. .6 . 18.7 1 . 11.9 9.0 .8
#/Hour Flash Steam
100 500 700 1,000 2,000 3,000 4,000 8,000 12,000 18,000 21,000 25,000 35,000
108
0
108
0
108
0
108
0
108
0
108
0
108
0
108
0
108
00
108
0
108
0
108
6
108
6
96 0
96 0
-1/
96
0
96 96
-1/
96
7 7
-1/
7
6 6
-1/
6
7 0
6
0
6
18
6
1
-1/
7 0
6
0
6
18
6
1
-1/
-1/
7
0
1 1 1
10
1-1/
10
1-1/
8
1-1/
6
1
6
1
10
1-1/
10
1-1/
8
1-1/
8
1
6
1
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
-1/
6
0
-1/
6
18
-1/
6
1
-1/
-1/
-1/
10
1-1/
-1/
10
1-1/
-1/
8
1
-1/
8
1
-1/
96 0
96 0
6
96 0
6
96
0
96 96 96
6
96
7 7 7
6
7
6 6 6
6
6
7 0
6
0
6
18
6
16
-1/
7 0
6
0
6
18
6
16
-1/
7 0
6
0
6
18
6
16
-1/
1 1 1 1
10
1-1/
10
1-1/
10 1
1
1-1/
1
1-1/
1
1-1/
6
7
0
6
6
0
6
6
18
6
6
16
-1/
6
6
1
1-1/
6
8
96
0
8
96
8
7
8
6
8
7
0
8
6
0
8
6
18
8
6
16
-1/
8
16
1-1/
8
Follow the “Pressure From...” down vertically on the
chart at left to the “Pressure To...”.
Example:
75 PSIG condensate flashed to low pressure
heating system at 1 PSIG gives 7.6%
condensate flashed into system.
After determining the percent of flash from the chart above, determine the size of Flash Separator from the chart below.
Example: Referring back to the chart above, you have a 7.6% flash, If you have 30,000 #/hour condensate at 75PSIG, 2,280 #/hour steam (30,000 x .076). Locate 30,000
in the left column below, go across to 2,280 #/hour flash steam column (3,000). You would use a 56” high x 18” diameter Flash Separator with a 3” draft and 5” vent.
10
96
0
10
96
10
7
10
6
10
7
0
10
6
0
10
6
0
10
6
0
10
*Flash Separators over 18” diameter,
cleanout will be 2” NPT coupling.
1
96
0
1
96
1
7
1
6
1
7
1
6
1
6
-1/
1
1
96
0
1
96
0
1
7
0
1
6
0
1
7
0
1
6
0
1
16
96
6
16
96
6
16
7
6
16
6
6
Dimension Chart Model BFS
I Inlet - Specify inlet to match your return line or blowoff line
H 6 7 96 108
Dia. 6 8 10 1 16 18 0 0 6
D 1 1-1/ 1-1/ -1/
V -1/ 6 8 10 1 1 16 18
PL /16 /8
16
7
6
16
18
96
6
18
96
6
18
7
6
18

Bottom Blowdown Separator
• Eliminate precipitated solids from the bottom
of the boiler.
• Cools blowdown to 1 0°F or below before
dumping to drain by introducing cooling water
via an aftercooler.
• ASME Section VIII “UE” stamped separator.
(“U” stamp available as option)
• Sized to accommodate flow based on boiler
blowdown line size and boiler operating pressure.
• Model Range:
14” diameter x 22” through 56” in height
for standard boilers
(10” diameter x 14” high option available
for boilers under 1000 #/hour)
• Modular configuration to meet customer
requirements includes: separator, legs
(or wall bracket), aftercooler, temperature
regulating valve and thermometer
• Can be custom configured to meet customer
requirements.
6
• Stainless steel striking plate standard and
internal steel restrictor plates standard.
• Multiple separators with manifold for high
pressure applications available.

Chart A — Boiler Blowdown Separators
Blowdown Valve
Size Separator * 1” 1¼” 1½” 2” 2½” 3”
Dimensions H I D V H I D V H I D V H I D V H I D V H I D V
Boiler Operating Pressure
0 - 1 1 1 2½ 0 1¼ 0 1½ 0 2½ 6 6
16 - 0 0 1 2½ 0 1¼ 1½ 2½ 6 6
1 - 100 0 1 2½ 1¼ 1½ 2½ 6 6 8 6
101 - 1 1 1¼ 1½ 6 2½ 6 6 — — — —
1 6 - 1 0 1 1¼ 1½ 6 6 6 2½ 6 6 — — — —
1 1 - 17 1 1¼ 1½ 6 6 6 2½ 6 8 — — — —
176 - 00 1 1¼ 6 1½ 6 6 6 6 2½ 6 8 — — — —
01 - 1 6 1¼ 6 1½ 6 6 6 6 2½ 8 8 — — — —
** 6 - 00 6 1 6 1¼ 6 1½ 6 6 6 6 6 2½ 8 8 — — — —
*Minature Boilers: ½” - 1” Blowdown Valve up to 1000 #/hr. Blowdown use 14” high, 1” Inlet, 2” Drain, 2½” Vent.
** 251 - 300 PSIG required.
U Symbol Construction and Stamping. See price sheet for adder.
Chart B — Cooling Water Line and Valve Size
Separator
Inlet Size 1” 1¼” 1½” 2” 2½” 3”
Cooling Water Pressure (PSI)
Boiler Operating Pressure
40# 60# 80# 40# 60# 80# 40# 60# 80# 40# 60# 80# 40# 60# 80# 40# 60# 80#
0 - 0 ½ ½ ½ 1 1 ¾ 1¼ 1 1 1¼ 1¼ 1¼ 1½ 1½ 1¼
Use for 0 - 70°F
Cooling Water
Temperature
Use for 71 - 80°F
Cooling Water
Temperature
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
1 - 100 1 ¾ ¾ 1 1 1 1¼ 1¼ 1 1½ 1¼ 1¼ 2½ 2½
101 - 1 1 ¾ ¾ 1¼ 1 1 1¼ 1¼ 1¼ 1½ 1¼ 2½ 2½ 2½
1 6 - 17 1 1 1 1¼ 1¼ 1 1¼ 1¼ 1¼ 1½ 2½ 2½ 2½ 2½
176 - 1 1 1 1¼ 1¼ 1¼ 1½ 1¼ 1¼ 2½ 2½ 2½
6 - 0 1¼ 1¼ 1 1¼ 1¼ 1¼ 1½ 1¼ 1¼ 2½ 2½ 2½
1 - 00 1¼ 1¼ 1 1¼ 1¼ 1¼ 1½ 1¼ 1¼ 2½ 2½ 2½
0 - 0 ¾ ½ ½ 1 1 1 1 1 1 1¼ 1¼ 1¼ 1½ 1½ 2½
1 - 100 1 ¾ ¾ 1¼ 1 1 1¼ 1¼ 1¼ 1½ 1¼ 2½ 2½
101 - 1 1 1 ¾ 1¼ 1¼ 1 1¼ 1¼ 1¼ 1½ 2½ 2½ 2½ 2½
1 6 - 17 1 1 1 1¼ 1¼ 1¼ 1¼ 1¼ 1¼ 2½ 2½ 2½
176 - 1 1 1 1¼ 1¼ 1¼ 1¼ 1¼ 1¼ 2½ 2½ 2½
6 - 0 1¼ 1¼ 1 1¼ 1¼ 1¼ 1¼ 1¼ 1¼ 2½ 2½ 2½ 2½
1 - 00 1¼ 1¼ 1¼ 1½ 1¼ 1 1½ 1½ 1½ 2½ 2½ 2½ 2½ 2½
6

Conductivity Controller
Surface Blowdown Solid
State Intermittent Sampling
• Controls boiler total dissolved solids (TDS) using
conductivity measurement and automatic surface
blowdown via intermittent sampling.
• Adjustable interval timer (1/ - hours)
periodically opens an electric valve to sample
boiler water conductivity.
• If the sample is below the micromhos set point
on the potentiometer, blowdown is not required
and the valve will close. If the sample is above
the micromhos set point on the potentiometer,
blowdown is required, and the valve will
remain open.
• Adjustable sample duration timer (1 - 10
minutes) again samples to determine if
sample is below the micromhos set point
on the potentiometer to permit the valve to close.
• Complete system includes: enclosure,
potentiometer, two timers and LED lights.
• Valve assemblies purchased separately include:
solenoid or motor-operated factory-piped valve
with probe, tee assembly and orifice kit.
66
• 1 0 VAC, 0/60 HZ, 1 amp
• Solid state electronics
• NEMA X enclosure

Conductivity Controller
(Surface blowdown solid state intermittent sampling)
Conductivity Range 0 - 7,000 Microsiemens/cm.
Sample Timers Interval: 1 Minutes to Hours / Duration: 0 Seconds to 10 Minutes
Display LED Indicators: Power, Blowdown and Conductivity Calibration
Accuracy +/- 00 Microsiemens
Drift Less than 0. % Per Month
Input Power 11 VAC, 0/60 HZ, 10 Amps
Output/Control 115 VAC, 50/60 HZ, 10 Amps. Maximum Combined Load / Pre-wired for 2 or 4 Wire Blowdown Valve
Environment Ambient Temperature: 0°F to 1 0°F ( °C to 60°C) Humidity: 1-100% R.H. Non-condensing
Enclosure
Nema 4X Weatherproof. See through Door with Padlockable Hasp. (3) 7/8” Diameter Holes Provided
for 1/2” Conduit Connections: Blowdown Valve, AC Power, Probe and Optional Electrical Device.
Dimensions H. 10” x W. 8” x D. 4” (25 x 20 x 10 cm)
Net Weight 5.89 Lbs. (2.67 Kgs.) / 7.43 Lbs (3.48 Kgs.) - With Flow through Plumbing Assembly
Note: Specifications subject to change without prior notice.
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
67

Water Softener Systems
BS & BP
Steel Tanks Electronic Demand Controller Features
• Exchanges "soft" sodium ions for "hard" calcium
and magnesium ions.
• BS - Model range:
0- / through BS-1 00- , twin or single
( 0,000 grain at 8 GPM through 1, 00,000
grain at 80 GPM).
• BP - Model range:
0- / through BP-600- , twin or single
( 0,000 grain at 8 GPM through 600,000
grain at 0 GPM).
• Available in alternating "twin" configuration with
flow meter and VIP computer demand controller
or "single" configuration with time clock
regeneration. Alternating twin system may be
run in parallel twin mode.
• Modular configuration to meet customer
requirements for alternating system includes:
resin tanks, resin, gravel, brine tank, control
valve, blocking valves, flow meter and VIP
computer demand controller.
• VIP computer demand controller standard.
• BS - Resin tanks:
Steel "polybond" lined and primed, pressuretested
to 100 psig, non-code stamped
(code stamped resin tanks available).
• BP - Resin tanks:
fiberglass reinforced polyester, pressure-tested,
non-code stamped (code stamped resin tanks
NOT available).
• Provided with industry standard 0,000 grain per
cubic foot resin.
• Fleck control valve standard.
• BS - Skid mounting (pre-piped/pre-wired)
available as option.
• BP - Skid mounting NOT available.
68

Twin
Drawing
Number
Single
Drawing
Number
Model
Type
Model
Number
Cap. Max
Grains (1,000) Cu. Ft.
Max. Min.
per
Tank
Continuous
GPM PSI
Peak
GPM PSI
Drain
Flow
Tank Dimensions Salt
Cap.
Flow Drop Flow Drop Max Resin Brine Lbs.
69
Regeneration
900225-1 900252-1 32Z BS-30-.75 30 20 1 8 4 12 7 2 10 x 52 18 x 38 400 15 6
900225-3 900252-3 62A BS-60-1 60 40 2 17 15 24 20 3 12 x 52 18 x 38 400 30 12
900225-4 900252-4 92A BS-90-1 90 60 3 21 15 29 25 5 14 x 66 18 x 38 400 45 18
900226-1 900253-1 92B BS-90-1.5 90 60 3 24 9 36 16 5 14 x 66 18 x 38 400 45 18
900226-2 900253-2 122B BS-120-1.5 120 80 4 32 12 48 22 7 18 x 66 21 x 43 450 60 24
900226-3 900253-3 152B BS-150-1.5 150 100 5 40 13 58 25 7 18 x 66 21 x 43 450 75 30
900226-4 900253-4 182B BS-180-1.5 180 120 6 42 15 59 25 10 18 x 66 27 x 51 1000 90 36
900226-5 900253-5 212B BS-210-1.5 210 140 7 45 15 60 25 10 24 x 66 27 x 51 1000 105 42
900226-6 900253-6 242B BS-240-1.5 240 160 8 45 15 60 25 10 24 x 66 27 x 51 1000 120 48
900226-7 900253-7 272B BS-270-1.5 270 180 9 45 15 60 25 10 24 x 66 27 x 51 1000 135 54
900226-8 900253-8 302B BS-300-1.5 300 200 10 45 15 60 25 15 24 x 66 27 x 51 1000 150 60
900227-1 900254-1 122C BS-120-2 120 80 4 32 7 48 12 15 18 x 66 27 x 51 450 60 24
900227-2 900254-2 152C BS-150-2 150 100 5 40 6 60 11 15 18 x 66 27 x 51 450 75 30
900227-3 900254-3 182C BS-180-2 180 120 6 48 9 72 15 15 18 x 66 27 x 51 1000 90 36
900227-4 900254-4 212C BS-210-2 210 140 7 58 8 84 15 15 24 x 66 27 x 51 1000 105 42
900227-5 900254-5 242C BS-240-2 240 160 8 64 11 96 20 15 24 x 66 27 x 51 1000 120 48
900227-6 900254-6 272C BS-270-2 270 180 9 72 13 108 25 15 24 x 66 27 x 51 1000 135 54
900227-7 900254-7 302C BS-300-2 300 200 10 78 15 108 25 15 24 x 66 27 x 51 1000 150 60
900227-8 900254-8 452C BS-450-2 450 300 15 87 15 118 25 20 30 x 66 32 x 51 1500 225 90
900227-9 900254-9 602C BS-600-2 600 400 20 94 15 125 25 25 36 x 71 42 x 51 2500 300 120
900228-1 900255-1 602E BS-600-3 600 400 20 160 15 240 25 30 36 x 71 42 x 51 2500 300 120
900228-2 900255-2 902E BS-900-3 900 600 30 200 15 270 25 40 42 x 71 42 x 51 2500 450 180
900228-3 900225-3 1202E BS-1200-3 1200 800 40 210 15 280 25 50 48 x 71 52 x 60 4500 600 240
NOTE: Some flow rates are shown at a rate less than the standard 15 PSI drop for continuous and 25 PSI drop for decreased softening capacity as these flows are exceeded.
Twin
Drawing
Number
Single
Drawing
Number
Model
Type
Model
Number
Cap. Max
Grains (1,000)
Max. Min.
Cu. Ft.
per
Tank
Continuous Peak
Tank Dimensions
GPM PSI GPM PSI
Drain
Flow
Flow Drop Flow Drop Max Resin Brine
NOTE: Some flow rates are shown at a rate less than the standard 15 PSI drop for continuous and 25 PSI drop for decreased softening capacity as these flows are exceeded.
Salt
Cap.
Lbs.
Max.
Lbs.
Min.
Lbs.
Regeneration
900245-1 900232-1 31Z BP-30-.75 30 20 1 8 4 12 7 2 9 x 48 18 x 38 400 15 6
900245-3 900232-3 61A BP-60-1 60 40 2 16 10 24 20 3 12 x 52 18 x 38 400 30 12
900245-4 900232-4 91A BP-90-1 90 60 3 21 15 29 25 5 14 x 65 18 x 38 400 45 18
900246-1 900233-1 91B BP-90-1.5 90 60 3 24 9 36 16 5 14 x 65 18 x 38 400 45 18
900246-2 900233-2 121B BP-120-1.5 120 80 4 32 11 48 20 7 17 x 58 21 x 43 450 60 24
900246-3 900233-3 151B BP-150-1.5 150 100 5 36 15 52 25 7 17 x 72 21 x 43 450 75 30
900246-4 900233-4 181B BP-180-1.5 180 120 6 38 15 56 25 7 17 x 72 27 x 51 1000 90 36
900246-5 900233-5 211B BP-210-1.5 210 140 7 45 15 60 25 15 24 x 71 27 x 51 1000 105 42
900246-6 900233-6 241B BP-240-1.5 240 160 8 45 15 60 25 15 24 x 71 27 x 51 1000 120 48
900246-7 900233-7 271B BP-270-1.5 270 180 9 45 15 60 25 15 24 x 71 27 x 51 1000 135 54
900246-8 900233-8 301B BP-300-1.5 300 200 10 45 15 60 25 15 24 x 71 27 x 51 1000 150 60
900247-1 900234-1 121C BP-120-2 120 80 4 32 6 48 10 7 17 x 58 21 x 43 450 60 24
900247-2 900234-2 151C BP-150-2 150 100 5 40 10 60 16 7 17 x 72 21 x 43 450 75 30
900247-3 900234-3 181C BP-180-2 180 120 6 48 9 72 23 7 17 x 72 27 x 51 1000 90 36
900247-4 900234-4 211C BP-210-2 210 140 7 56 8 84 15 15 24 x 71 27 x 51 1000 105 42
900247-5 900234-5 241C BP-240-2 240 160 8 64 11 96 20 15 24 x 71 27 x 51 1000 120 48
900247-6 900234-6 271C BP-270-2 270 180 9 72 13 108 25 15 24 x 71 27 x 51 1000 135 54
900247-7 900234-7 301C BP-300-2 300 200 10 78 15 108 25 15 24 x 71 27 x 51 1000 150 60
900247-8 900234-8 451C BP-450-2 450 300 15 87 15 118 25 20 30 x 72 32 x 51 1500 225 90
900247-9 900234-9 601C BP-600-2 600 400 20 94 15 125 25 25 36 x 72 42 x 51 2500 300 120
900248-1 900235-1 601E BP-600-3 600 400 20 160 14 240 24 25 36 x 72 42 x 51 2500 300 120
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
Max.
Lbs.
Min.
Lbs.

horizontal and Integral Deaerators
The spray type deaerator is rated for oxygen removal to .00 cc/I (7PPB) and CO to zero measurable across its entire
operating range. With its all stainless steel spring-loaded spray valve and second stage steam scrubber, the spray
type deaerator is a good choice for all deaerator applications. Units are available with a complete range of boiler
feedpumps and control options making them a total deaerator package with minimal amount of field assembly.
Performance Features
• Oxygen removal to .00 cc/I (7PPB)
• CO removal to 0% measurable
• Reduce chemical costs
• Reduce boiler and system corrosion
• Improve boiler efficiency
• Pre-heat boiler feedwater
• Quick equipment payback compared to chemical
oxygen removal
Construction Features
• Constructed to ASME Section VIII, Division 1 for
0 PSIG
• Easily accessible manway
• Standard ten minute deaerator storage
• Internal vent condenser for minimum steam loss
• Self-adjusting spring-loaded stainless steel spray valve
• Structural steel stand/pump platform
• Two-stage deaeration
• Available as completely packaged unit including pumps
and control panel
horizontal Tank Design Integral Tank Design
70

horizontal and Integral Deaerators
horizontal Tank Design Integral Tank Design
1
2
3
4
5
6
7
8
High water level control
Low water level control
Make-up water control
Vacuum breaker
Temperature gauge
Pressure gauge
Overflow trap
Vent
© 006 Burnham Commercial - Lancaster, PA
Phone: 1-888-791- 790
www.burnhamcommercial.com
71
9
10
11
12
13
14
15
16
Pump suction
Pump bypass
Chemical port
Drain
Sample port
High temperature condensate return
Gauge glass
Manway access opening

Engineering & Application Data
7

ENG-
7

ENG-
7

TERMS AND CONDITIONS OF SALE FOR BURNHAM COMMERCIAL STEEL BOILERS
PRICES AND TERMS OF PAYMENT
A. Prices quoted are firm for no more then 30 days from the date of quotation
subject to any conditions stated in Seller’s quotation or in an order submitted
by Buyer and expressly accepted in writing by Seller. Seller will not be bound
by any price sheet or quote other then a price quote signed by an authorized
representative of Seller.
B. Prices on orders accepted by Seller are firm, to the extent stated in the
accepted order, subject to the following:
1. The purchase order must provide for shipment within six months of the
date of purchase order.
2. Any shipment made more then six months after such a date is subject to a
price adjustment, at Seller’s sole discretion, to the Seller’s price in effect at
the time of shipment, which will not exceed 125% of the price on the
acknowledged purchase order.
3. Any shipment more then 12 months after the date of purchase order will be
invoiced at Seller’s price in effect at the time of shipment.
C. On orders having a total price of less then $100,000 payment will be due “net
in 30 days” from date of shipment, unless otherwise specifically agreed by
Seller. On orders having a total purchase prices of $100,000 or more terms
are 10% with order, 45% upon Seller’s receipt of Buyer’s approval of drawings,
45% within 30 days after shipment and 5% at the start-up of the products or
within 90 days of shipment, which ever occurs sooner.
D. The price of parts, components and other items not manufactured by Seller is
subject to adjustments by Seller to reflect price changes by Seller’s suppliers.
E. Orders accepted by Seller are subject to credit investigation and approval. If
Buyer’s financial condition at any time does not justify the terms specified,
Seller may require payment in advance of shipment or, if shipment has been
made, recover shipment from the carrier. A service charge of 1-1/2% per
month will be added to all accounts 30 days past due.
F. Any tax or governmental change now or hereafter levied upon the production,
sale, use or shipment of products ordered or sold will be charged to and paid
by the Buyer, unless the Buyer has provided Seller with a tax exemption
certification acceptable to the applicable taxing authorities. Such taxes are not
covered in the selling price unless expressly stated on the quotation form.
SECURITY INTERESTS
Not withstanding transfer of title to Buyer, the Seller retains and the Buyer
hereby grants to the Seller a purchase money security interest in all products
sold, and Buyer hereby irrevocably appoints Seller as its attorney-in-fact to
execute and deliver, in Buyer’s name, any such financing statement of other
documents as may be necessary under the Uniform Commercial Code or other
applicable laws governing the items sold herein to perfect Seller’s interest therein.
Buyer will obtain and maintain insurance against the loss or damage naming Seller
as an additional insured in an amount sufficient to protect Seller’s interest in all
products until the purchase price has been paid in full.
CHANGES, ORDERS AND CANCELLATION
Seller may adjust the selling price to cover any requested change in specification
or other terms after the receipt of the Buyer’s order. Orders accepted by
Burnham Commercial shall not be canceled by the Buyer except at Burnham
Commercial’s sole discretion. In the event of any cancellation, Burnham
Commercial reserves the right to impose a cancellation charge sufficient to cover
all losses and out-of-pocket costs incurred by Seller in connection to such order,
including materials and labor charges and cancellation charges from vendors, plus
a cancellation charge of 20% of the original face amount of the order to
compensate the Seller for its loss in profit.
RETURNED GOODS
Products may not be returned for refund or credit until after Seller has agreed to
accept them. Inspection by a Seller representative may be required before return
authorization is granted. A minimum restocking and handling charge of 25% (plus
cost of any missing parts or components and inbound freight) will apply to all
such returned products. All transportation charges for such products must be paid
by Buyer.
TRANSPORTATION TERMS AND CLAIMS
Unless otherwise stated on Seller’s quotation form, all process are F.O.B Seller’s
shipping point. Delivery to the initial carrier shall constitute delivery to the Buyer.
Seller’s responsibility ceases and title the goods passes, subject to Seller’s
security interests upon delivery in good order to such carrier, and all products are
shipped at the Buyer’s risk. The Buyer agrees to examine all deliveries carefully
before signing transportation receipts. If products are visibly damaged the Buyer
shall require that written confirmation of damage be noted on the carrier’s
delivery receipt and confirmed by the driver for the carrier. If damage is
discovered after unpacking, the carrier shall be notified at once so that an
inspection can be made and the claimed damage substantiated by the carrier.
FORCE MAJEURE AND STORAGE
A. Seller shall not be liable for any delay or failure in the delivery or shipment of
products or for any damages suffered by reason of such delay or failure
directly or indirectly, due to fire, flood, other weather conditions, accident,
riots, war, embargo, labor stoppages, inadequate transportation facilities,
shortage of materials or supplies, regulation by government authority or any
cause beyond the Seller’s control.
B. Seller reserves the right to allocate available production among its customers
in any fair and reasonable manner that it determines is necessary or
desirable.
C. If delivery is delayed due to any cause beyond the Seller’s control, Buyer
shall reimburse Seller for any added costs. Without limiting the foregoing,
product on which manufacturer or delivery is delayed due to cause may be
placed in storage by Seller, for the Buyers account and risk, and regular
charges therefore and expense in connection therewith shall be paid by the
Buyer. If, in Seller’s opinion, it is unable to obtain or continue such storage,
the Buyer will, on request, provide or arrange for suitable storage facilities and
assume all costs and risks in connection therewith.
SHORTAGES, VARIANCES AND WEIGHTS
No claims for variance from or shortages in orders will be considered unless
present within 30 days after receipt of products. Any shipping weights are given
or estimated are approximate, for the Buyer’s convenience only, and not
guaranteed by Seller.
LIMITS OF LIABILITY
Any action by Buyer on this contract, must be commenced within one year after
the cause of action accrues. Actions on Seller’s Warranties shall be limited as
provided therein. Seller shall in no event have any liability for any liquidated
9
damages, consequential damages or penalties, whether on account of lost profits,
or otherwise, unless specifically agree in writing signed by an authorized
representative of Seller.
PRODUCT CHANGES
Seller reserves the right to make changes in products of any kind without prior
notice, and to deliver revised designs or models of products against any order.
Seller shall have no responsibility whatsoever with respect to changes made by
the manufacturer of products sold but not manufactured by it.
PATENTS
Products manufactured and sold by Seller may be used by the Buyer pursuant to
such patent rights as Seller may own or enjoy. Seller shall not liable for any use
such products may be put as part of any system, mechanism or process covered
by patent rights of others.
TESTS
Any tests requested by the Buyer to determine the performance of products
covered by Seller’s quotation, must utilize procedures acceptable to Seller and the
Buyer is responsible for costs thereof. Whenever an order includes start-up or
service agreement, Seller shall not be obliged to provide start-up or other service
as long as payment to Seller is default.
CONFLICTING PROVISIONS OFFERED BY BUYER
Any terms and conditions of Buyer’s purchase order which are different, from, in
addition to inconsistent with the terms and conditions contained herein, are hereby
objected to, and will not be binding on Seller in any manner whatsoever unless
accepted by Seller in writing. Seller shall ship products referred to in this document
only on the condition that the terms and conditions of sale set forth hereon shall
be binding on the Buyer.
APPLICABLE LAW
Any order or contracts received by Seller from Buyer shall be governed by,
construed and enforced by the laws of the Commonwealth of Pennsylvania.
COMPLETE AGREEMENT
The complete agreement between Seller and Buyer is contained herein and any
specifications signed by the Seller, and no additional or different terms or
conditions stated by Buyer shall be binding unless agreed to by Seller in writing.
Neither course of dealings, not usage of trade shall be relevant to supplement or
explain any terms used in this Agreement, and this Agreement may be modified
only by a writing signed by both Seller and Buyer. The failure of Seller to insist
upon strict performance of any of the terms and conditions stated herein shall not
be considered as a continuing waiver of any such terms and conditions or any of
Seller’s other rights.
CHANGES IN TERMS
These terms and conditions of sale are subject to change by Seller from time to
time without prior notice.
LIMITED WARRANTY
LIMITED WARRANTY
Subject to the terms and conditions herein, Seller warrants to the original owner at
the original installation site that products manufactured by Seller (“Products”)
comply, at the time of manufacture, with recognized hydronics industry regulatory
agency standards and requirements therein effect and will be free from defects in
materials and workmanship for a period of 12 months after the date of start-up or
18 months after the date of shipment, whichever shall be less (the “Warranty
Period”)
REMEDY
A. The sole remedy for breach of this warranty is expressly limited to the repair
or replacement of any part found to be defective under conditions of normal
use within the Warranty Period. Installation is not included.
B. Warranty – The owner must notify the original installer of the Product and
Seller (Attention: Burnham Commercial, PO Box 3939, Lancaster, PA 17604) in
writing, within the Warranty Period, providing a detailed description of all
claimed defects. Transportation to a factory or other designated facility for
repairs or any products or alleged defective shall, in all events, be the
responsibility and at the cost of the owner.
EXCLUSIONS
Seller shall have no liability for:
A. Incidental, special or consequential damages, such as loss of the use of
products, facilities or production, inconvenience, loss of time or labor expense
involved in the repairing or replacing of the alleged defective product.
B. The performance of any Product under conditions varying materially from
those under such Products is usually tested under industry standards as of
the shipment time.
C. Any damage to the Product due to abrasion, erosion, corrosion, deterioration,
abnormal temperatures or the influence of foreign matter or energy.
D. The design or operation of owner’s plant or equipment or of any facility or
system of which any Product may be made a part.
E. The suitability of any Product for any particular application.
F. Any failure resulting from misuse, modification, not authorized by Seller in
writing, improper installation or lack of proper maintenance.
G. Equipment furnished by the owner, either mounted or unmounted, or when
contracted for by owner to be installed or handled.
Seller’s liability under this warranty shall not in any case exceed the amount paid
for the Product found defective.
THIRD-PARTY WARRANTIES
For goods or components not manufactured by Seller, the warranty obligations or
Seller shall, in all respects, conform and be limited to the warranty actually
extended to Seller by its vendors.
SEVERABILITY
To the extent that any provisions of this warranty would be void or prohibited under
applicable law, such provisions shall be limited in effect to the minimum extent
necessary to render the remaining provisions hereof enforceable.
NO OTHER WARRANTIES
Seller makes no implied warranty of merchantability or fitness for a particular
purpose, or other warranties with respect to any products or services except as
expressly set forth in this limited warranty.
Form No. PL8146561001 - 4/04