GWB8-IE Boiler
- Up to 84.4% Annual Fuel Utilization Efficiency
- Natural gas fuel source; convertible to LP
- Six sizes
- Titanium burner
- Electronic ignition
GWB8-E Boiler
- Up to 83.9% Annual Fuel Utilization Efficiency
- Natural gas fuel source; convertible to LP
- Nine sizes
- Stainless steel burner
- Electronic ignition
GWB9-IH Boiler
- Up to 90% Annual Fuel Utilization Efficiency
- Natural gas fuel source; convertible to LP
- Three sizes
- Stainless steel burner
- Hot surface ignition
GWM-IE Boiler
- Up to 95% Annual Fuel Utilization Efficiency
- Natural gas fuel source
- Five sizes
- Stainless steel mesh burner
- Direct spark ignition
GSB8-E Boiler
- Up to 82.7% Annual Fuel Utilization Efficiency
- Natural gas fuel source; convertible to LP
- Seven sizes
- Titanium burner
- Electronic ignition
