CMX 2004 - Plumbing & HVAC

Flexible Eutectic
You have to love a boiler
you can beat up on
Throw thermal shock at a De
Dietrich boiler and with 30% higher
elasticity in the eutectic cast iron
than standard rigid cast iron, it just
shrugs it off.
■ Low water condition, by far the most
common failure in boiler operation?
The homogeneous cast iron maintains
its structural integrity.
■ Down time for maintenance? What’s
going to go wrong? It doesn’t have any
moving parts. The doors do swing open
fully. However, you should brush the
flueways from time-to-time, and the
baffles are removable to clean, too.
■ All the material in the boiler construction
is the same, so it contracts and
expands together — in balance. It’s the
only boiler assembled on an underframe
like a rail to allow the boiler to
expand and contract evenly. It’s another
innovation from a French manufacturer
that started back in 1684.
■ Corrosion? The eutectic cast iron
more than meets the highest standard
for resistance to pitting, thinning and
other corrosion.
■ De Dietrich boilers are designed to
have some condensation at low temperatures
– but that water flows into the
firebox where it is vapourized. No harm
done and no need for a drain.
Simplifies RFH systems
You can also love a boiler that makes infloor
heating systems much simpler to
design and install. First, you need
equipment that can withstand temperatures
as low as 105°F without damage.
Most boilers manufactured today
require three-way valves and pumps to
blend the return water back up to 130-
140°F to protect them from damage.
However, a De Dietrich system operates
as if it was a three-way valve. There
is no low temperature problem so the
system temperature can be reduced right
at the boiler inlet and be controlled
down to 105°F, or lower on the outlet.
When the boiler is tied into vertical
fan coils or a radiant floor heating
(RFH) system, a supply temperature of
140°F is all that is required. At this temperature,
DHW can also be supplied,
through a heat exchanger, from the
main heating loop.
Officials at the Waterloo Region District School Board are pleased with their new
De Dietrich boilers.
greater versatility and flexibility in
applying these boilers to all types of
institutional-commercial-industrial
(ICI) hot water heating systems.
You will want to replace existing boilers
with a De Dietrich where you can apply
the same run-through as before. Why
change it for a higher installed cost? And
you can apply a building management
system to its operation to bring the temperature
down to meet actual demand or
move it up to a blend of 130-140°F.
When designing a system, you
will like the choice of five brands of North
American burners: Pendell/ FuelMaster,
Riello, Weishaupt, Power Flame and
Gordon Piatt/GP Combustion. And for
customers that want very low levels of
combustion emissions, there are European
burners that integrate well with the
large firebox to bring NOx, CO and CO2
levels well down, for example.
Regional assistance close
And you can get all the design and technical
assistance from manufacturer’s
reps you know, nine across Canada:
Bruce Sutherland in the Atlantic;
S.E.R.L. Inc. in Quebec; Applied Engineering
Systems in Greater Toronto;
Waterloo Mfg. in southwestern Ontario;
C.K. Howard in northern Ontario;
Airtech Sales in eastern Ontario;
Central Boiler Supply in Manitoba-
Saskatchewan; Westcan HVAC Sales in
Southern Alberta, Farrell Engineering
in Northern Alberta and Cadillac
Agencies in British Columbia.
Why would I buy a
DeDietrich Boiler?
Quality, Shock Resistant, Low
Maintenance and Energy Savings.
Simply The Best!
What our customers are saying:
Waterloo Region District School Board
“We at the W.R.D.S.B. have been using De Dietrich boilers for the last
6 or 7 years and have had excellent results with them.We are using
them to replace single marine boilers with two De Dietrich boilers.
With these boilers we have reduced our utility costs and drastically
reduced our boiler service.There is no expensive repairs such as retubing
and tube sheets with these boilers and no expensive
parts.Parts are available at the local wholesalers.
We have had great support from the distributor when it comes to
replacing existing boilers.We are also pleased with the efficiency we
are achieving with these boilers and the ability to run lower water
temperatures through our energy management systems thus allowing
us to save even more money.
We have approximately 35 of these boilers installed at this time
and will continue to use them in the future.”
Leo Smith, Foreman H.V.A.C.
Efficiencies reach 85.2%
You will also love this boiler for its
operating efficiency to strict testing
under CSA 4.9-2000 standards.
Approved by ULC to an average efficiency
rating of 85.2% at high-fire
www.dedietrich-canada.com
across the models available (from 170 to
6,206 MBH) and with low modulated
temperatures, energy savings quickly Flexible Eutectic Boilers
add up over the 30-year life of a De
P.O. Box 1763
Tel: 1 519 348-8200
Dietrich boiler.
Mitchell, Ontario N0K 1N0
1 800 943-6275
You will also like the fact that working
E-mail tom.turner@ezlink.on.ca
Fax: 519 348-8404
pressures range from 59 to 75 psi, depending
on the model selected. That gives you
Circle Number 135 for More Information
www.plumbingandhvac.ca March/April 2004 – Plumbing & HVAC Product News 33