Firetube Boilers and Accessories

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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
Page 1 and 2: America’s Boiler Company Firetube
Page 3 and 4: Series 3 Packaged Firetube Boiler
Page 5 and 6: Boiler Model Shell Diam. Series 3 -
Page 7 and 8: It All Adds Up To Significant Cost-
Page 9 and 10: Series 3 Shock Proof Boiler Elimina
Page 11 and 12: Series 3 Packaged Firetube Boiler
Page 13 and 14: Natural Gas BOILER SIZE 100 125 150
Page 15: Wetback Design vs. Hard Refractory
Page 19 and 20: Dimensions and Ratings 100 125 150
Page 21 and 22: Low NOx 1
Page 23 and 24: Series 4F Forced Draft Firebox Boil
Page 25 and 26: Dimensions (in Inches) Series 4F
Page 27 and 28: Ratings and Data 4F - 40 Boiler Mod
Page 33 and 34: Series 4F Forced Draft Firetube Boi
Page 35 and 36: Series 4N Natural Draft Firebox Boi
Page 37 and 38: Dimensions (Inches) Series 4N — M
Page 39 and 40: • Compact, efficient three-pass f
Page 41 and 42: Series 4N Natural Draft Firebox Boi
Page 43 and 44: Series 4NP Natural Draft Firebox Bo
Page 45 and 46: C Series Compact Package Boiler
Page 47 and 48: C Series Anticipated Efficiencies C
Page 49 and 50: Component Summary Information A boi
Page 51 and 52: Boiler Accessories 1
Page 53 and 54: Specifications Chemical Feed System
Page 55 and 56: Bypass Feeder 3/4 Gallon Item Descr
Page 57 and 58: Condensate Return System Condensate
Page 59 and 60: Specifications Model Blowdown Capac
Page 61 and 62: New Jersey Regulations for Blowdown
Page 63 and 64: Pressure To... 700 600 00 00 00 00
Page 65 and 66: Chart A — Boiler Blowdown Separat
Page 67 and 68:
Conductivity Controller (Surface bl
Page 69 and 70:
Twin Drawing Number Single Drawing
Page 71 and 72:
horizontal and Integral Deaerators
Page 73 and 74:
ENG- 7
Page 93:
TERMS AND CONDITIONS OF SALE FOR BU
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Firetube Boilers and Accessories

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