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Lennox GWB9-IH Boiler

High-Efficiency, Gas-Fired Water Boiler. 

Engineered for lasting comfort and energy savings. With an efficiency rating of up to 90% AFUE, the GWB9-IH Boiler allows you to stay comfortable during even the coldest weather, without worrying about energy costs.

EfficiencyUp to 90% AFUE
Fuel SourceNatural Gas; convertible to LP
Sizes/CapacitiesThree
Burner TypeStainless Steel
IgnitionHot Surface
Warranty15-Year Limited Warranty on Heat Exchanger; 10-Year Limited Warranty on covered parts

Contact Us For A Free Estimate Or Service Request

Contact Us For A Free Estimate Or Service Request