GWB8-050E-3, 83.5% AFUE, Gas-Fired Water Boiler with Taco, 50,000 Btuh, 2.4 Gallon, Natural or LP Gas

With efficiency ratings of up to 83.5% AFUE, the GWB8-050E-3 offers significant energy savings compared to an older, less efficient boiler. That means you’ll see lower utility bills throughout the winter, even without adjusting your thermostat.

• 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.
• Electronic Ignition Control: Monitors water temperature and maximizes efficiency by turning on the burner only when needed.