Standard-efficiency, gas-fired water boiler
The GWB8-042IE-2 boiler is full of features that provide years of heating benefits, including a cast-iron heat exchanger and titanium burners. With efficiency ratings of up to 84.4%, the GWB8-042IE-2 can also deliver significant energy savings, compared to an older boiler.
42.5 Input MBH, 36 MBH Heating Capacity
- Electronic ignition control—monitors water temperature and maximizes efficiency by turning on the burner only when needed
- Thick fiberglass insulation—minimizes off-cycle heat and energy loss
- Easy integration—works with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures
- Cast iron heat exchanger—designed for years of long-lasting reliability
- Titanium burners—provide greater resistance to corrosion and oxidation than competitive stainless or aluminized stell burners
- Versatile installation—available in six sizes for installation virtually anywhere in the home, and can be fueled by natural or LP* gas
*Shipped as natural gas; convertible to LP.