FP Series

FP Series
Suitable for cast iron, firebox and scotch marine boilers; the FP series burners are effective where high heat release is required or where a restricted combustion chamber exists. The FP series offers natural gas, propane gas, pressure atomized #2 oil and combination gas/oil fuel options at capacities from 550,000 to 4,200,000 Mbtu/hour.
Features Include:
  • Gas, light oil and combination gas/oil fuels
  • Gas/electric ignition on gas and combination gas/oil units
  • Direct spark ignition on oil units
  • Upright model option for low boiler base heights
  • Honeywell and Fireye control options
  • Remote oil pump optional
  • Pressure atomized
  • On/Off standard on models 5-7
  • Low-High-Low/Off standard on models 8-25
  • Full modulation standard on models 28-42
  • UL & cUL listed
Capacities and Specifications
FP-Series
Burner Size 5 7 8 9 11 12 14 17 20 25 28 36 42
Frame Size 1.0 1.0 2.0 2.0 2.0 2.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0
Gas Input (Mbtu/hr) 550 700 800 900 1,100 1,200 1,400 1,700 2,000 2,500 2,800 3,600 4,200
Oil Input (U.S. gph) 3.9 5.0 5.7 6.4 7.9 8.6 10.0 12.0 14.5 18.0 21.0 25.0 30.0
Boiler Horsepower 13 17 19 21 26 29 33 40 50 60 70 86 100
Blower Motor Horsepower 3/4 3/4 3/4 3/4 3/4 3/4 3/4 1/2 1/2 1/2 1/2 1/2 1/2
Furnace Pressure ("w.c.) 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
Standard Gas Train Pipe Size (in.) 1 1 1 1 1 1 1 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 2
Gas Pressure Required (PSI) 3.1 4.8 4.7 5.9 7.9 9.0 6.0 6.4 9.0 9.6 14.2 21.1 10.6
Shipping Weight (lbs) 200 200 200 200 200 200 250 250 250 370 370 375 400
Model

Gas Based:

Model Fuel
FPG Gas

Oil Based:

Model Fuel
FPL No. 2 Oil

Gas/Oil Based:

Model Fuel
FPLG Gas/No. 2 Oil
Notes:
  • Firing rates based on 60 cycle and an altitude up to 2,000 ft. above sea level.
    * For blower wheel and motor sizes at higher altitudes, and 50 cycle applications, consult factory.
  • Oil input based on No. 2 oil @ 140,000 Mbtu/gal
  • Gas input based on Natural Gas @ 1,000 Mbtu/cu.ft. and 0.60 specific gravity
  • Lower furnace pressures may reduce motor HP requirements
  • Boiler overall efficiency of 80% estimated
F Series Brochure F Technical Data Sheets
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