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The FCX 22 (76,000 Btu/h) delivers up to 97% AFUE for all residential needs.

FCX22 Boiler Front ViewHydronic heating at its best, FCX oil fired condensing boilers operate on both #1 and #2 fuel, and have unique features resulting in big dollar savings.

By using some basic controls and condensing enhancing techniques such as stack robbers, domestic water preheating, and HRV air preheating, you can reach 97% efficiency.

Thousands of installations worldwide have proven the FCX boiler to be most reliable and efficient. The FCX features a steel, primary non-condensing heat exchanger coupled to a condensing, stainless secondary heat exchanger. A built-in three-way mixing valve permits all-season comfort at maximum efficiency. The FCX has dual-temperature circuit capability, which makes combining low and high-temperature applications in the same structure quick and easy. It is ideal for year-round domestic hot water and is so silent, clean and nicely finished that it can be installed almost anywhere within most buildings.

The FCX is approved as a sealed-combustion device taking its combustion air from outside via a concentric vent or it can use room air for combustion.

FCX 22 Specifications

SPECIFICATIONS FCX 22
Rated Output 76,000 Btu/h
Rated Input 81,250 Btu/h
Combustion Chamber Length 8.98″
Combustion Chamber Diameter 11.57″
Combustion Chamber Volume 915 Cubic Inches
Combustion Prod. Circuit Volume 3,051 Cubic Inches
Flue Pressure Drop H20 0.10″
Max. Heating Service Pressure 43.5 PSI
Max. Heating Circuit Water Temperature 158°F
Water Overheating Safety Thermostat Setting 230°F
Combustion Prod. Overheating Safety Themostat Setting 230°F
Heating Circuit Water Capacity 4.23 Gallons
Primary Water Flow Rate (122/158°) 254 Gal/h
Water Pressure Drop (at nominal flow rate) 1.0 MCE
Power Absorbed (with burner, without circulator) 0.2 kW
Power Consumption 235 W
Full Load Current 2.0 Amps FLA
Max. Fuse/Circuit Breaker Size 15 Amps
Dimensions
Height 39.1″
Width 23.7″
Depth 27.5″
Packaged Weight 322 lbs.
Pipe Connections
Water Heating Supply/Return 3/4″
Domestic Hot Water or Second Heating Circuit 3/4″
Condensate Drain 1-1/2″
Heating Water Drain 1/2″
Air Bleed 3/4″
Safety Pressure Relief Valve 3/4″