ENERGY STAR® QualifiedDescription
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 useable heat. Fuel flexibility lets you use either natural or LP gas as a heat source.
| Feature | 
GWM-IE Boiler |
|---|---|
| Efficiency | Up to 95% AFUE |
| Fuel Source | Natural Gas |
| Sizes/Capacities | Five |
| Burner Type | Stainless Steel Mesh |
| Ignition | Direct Spark |
| Warranty | 15-Year Limited Warranty on Heat Exchanger; 10-Year Limited Warranty on covered components |
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