Engineered for lasting comfort and energy savings
Smart with energy use
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.
The GWB9-IH is designed to integrate easily into a traditional radiator system. Its lightweight and compact design allows flexible installation inside your home. Fuel flexibility lets you use either natural or LP gas as a heat source.