The Lennox GWB8-IE is a gas-fired boiler with an efficiency of up to 84.4% AFUE. It features a durable cast-iron heat exchanger and an electronic ignition control which monitors water temperature and turns on the burner only when necessary. The boiler’s titanium burners are corrosion resistant, and a thick layer of fiberglass insulation increases the unit’s efficiency by reducing heat loss. The GWB8-IE is available in six sizes and can be used with a traditional radiator or an underfloor heating system. It is shipped for use with natural gas but can be easily converted to LP gas.
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