Steam heat from the efficiency experts
The GWM-IE boiler offers an efficiency of up to 95% AFUE, meaning it converts up to 95% of its fuel into usable heat. Fuel flexibility lets you use either natural or LP gas as a heat source.
Nothing’s more efficient
With an efficiency of up to 95% AFUE, the GWM-IE boiler can mean several hundred dollars per year in energy savings.This product has been designated as one of the Most Efficient Energies STAR certified products in 2017. Products that are recognized as the Most Efficient of ENERGY STAR in 2017 prevent greenhouse gas emissions by meeting rigorous energy efficiency performance levels set by the U.S. Environmental Protection Agency.
Smart design, smarter comfort
Inside the heat exchanger shell of the GWM-IE, specially designed helical tubes optimize condensing, allowing near-complete recovery of usable heat from the fuel source.
Technology with the power to save you money
The modulating capability of the GWM-IE allows the burner to fire at different levels of heat, down to 20% of its full capacity. So your comfort and energy use are always kept in perfect balance.
Continuous modulation allows the GWM-IE to maintain a precise temperature without constantly cycling between on and off. This not only reduces operating sound levels, but it also increases reliability.