|Efficiency||Up to 83.9% AFUE|
|Fuel Source||Natural Gas; convertible to LP|
|Burner Type||Stainless Steel|
|Warranty||20-Year Limited Warranty on Heat Exchanger; 5-Year Limited Warranty on covered components. This product may be eligible for 10-Year Limited Warranty coverage with product registration.|
Lennox GWB8-E Boiler
Gas-Fired Water Boiler.
Reliable heating performance season after season. The GWB8-E offers an efficiency of up to 83.9% AFUE, meaning it can deliver significant energy savings compared to an older boiler. That means you can enjoy a comfortably warm home all throughout the winter, without worrying about energy use.