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Model 4/5 US/Canada
 Manufacturer: Cleaver BrooksModel Number: 4/5
Capacities from 1.5 MMBTU/hr input through 6.0 MMBTU/hr input [36 boiler horsepower through 143 boiler horsepower].
UL Listed and Labeled.
Hot Water applications, 140# design standard, optional to 500#/400F hot water design.
Steam applications of 15# or 150# standard, option to 500# design.
Forced Draft burner for gas [natural, propane] or light oil. Optional burner for digester gas operation.
Full Modulation on gas and 3-stage operation for oil.
3-pass gas travel provides exceptional heat transfer efficiency.
Complete water backed [roof, sides, floor] furnace for enhanced heat transfer.
Hinged burner door for easy access to furnace and burner internals.
Narrow design [33? wide] fits through standard doorway, minimum floor space.
Quiet Operation: <70 dBA noise level at high fire.
Low Water Volume Design Model 5 for Canadian Applications.
CB120 Flame Safeguard with optional ModBus communication.
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