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.
Here are some of the top features of the GWB9-IH:
- Efficiency rating of 90% AFUE.
- ENERGY STAR® certified 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.
AHRI Certified C
CSA Approved (C)(US)
CSA Certified Canada
CSA Design Certified
*Shipped as natural gas; field convertible to LP.