Lennox Gas Fired GWB9-IH Boiler
High-efficiency, gas-fired water boiler
The GWB9-IH boiler offers an AFUE rating of 90%, which means it converts a full 90% of your fuel into usable heat. And it delivers warmth quickly with a cast-aluminum heat exchanger that transfers heat three times faster than conventional cast iron.
- Efficiency rating of 90% AFUE.
- ENERGY STAR® qualified which means it meets or exceeds U.S. federal guidelines for energy efficiency.
- Cast-aluminum heat exchanger transfers heat up to three times faster than traditional cast-iron exchangers.
- Easy integration with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures.
- Cast-aluminum heat exchanger—transfers heat up to three times faster than traditional cast iron exchangers
- ENERGY STAR® qualified—meets or exceeds EPA guidelines for energy efficiency, which means energy savings
- Electronic ignition control—monitors water temperature and maximizes efficiency by turning on the burner only when needed
- Sealed combustion—minimizes fan noise and provides quiet, soothing heat
- Easy integration—low temperature supply and return water makes the unit compatible with existing radiant and underfloor systems
- Durable cabinet—heavy-gauge steel cabinet and baked-on paint finish
- Compact and versatile—allows easy installation in a basement, closet or alcove enclosure, and can be fueled by natural or LP* gas
*Shipped as natural gas; 050 and 075 models are convertible to LP.