GWB8-125E-3, 82% AFUE, Gas-Fired Water Boiler with Taco, 125,000 Btuh, 5.6 Gallon, Natural or LP Gas

 Lennox GWB8-E boiler is constructed of high-quality materials, including a cast iron heat exchanger and stainless steel burner. The GWB8-125E-3 boiler is designed to provide efficient, dependable heating for many years to come. 

• Vent Damper - Automatically closes when the boiler turns off to maintain energy efficiency.
• Cast Iron Heat Exchanger - Designed for years of long-lasting reliability over a range of water flow rates.
• Thick Fiberglass Insulation - Minimizes heat and energy loss when the heat exchanger cools down after a cycle.
• Stainless Steel Burners - Provide greater resistance to corrosion and oxidation.
• Electronic Ignition Control - Monitors water temperature and maximizes efficiency by turning on the burner only when needed. 
• Low-Water Cut-off - Provides protection against potentially dangerous low water conditions.
• Warranty - A 20 year limited warranty on the heat exchanger and a 5-year limited warranty on covered parts. Covered components may be eligible to receive a 10-year limited warranty with online product registration. See actual warranty certificate for details.