Lennox GWB8-075E-3: 75,000 BTU Gas-Fired Water Boiler with Up to 83.9% AFUE Efficiency

### Product Overview

The GWB8-075E-3 boiler is engineered to deliver remarkable efficiency, boasting an impressive AFUE rating of up to 83.1%. This advanced efficiency means you can expect noticeable savings on your energy bills throughout the winter season, all without having to constantly tweak your thermostat.

**Key Features:**

- **Vent Damper:** This smart feature automatically closes when the boiler shuts off, ensuring continued energy savings.
- **Cast Iron Heat Exchanger:** Built for durability and reliability, this heat exchanger performs efficiently across various water flow rates.
- **Thick Fiberglass Insulation:** Designed to reduce heat and energy loss, this insulation helps the heat exchanger retain warmth after each cycle.
- **Electronic Ignition Control:** This system optimizes energy use by activating the burner only when necessary, based on real-time water temperature monitoring.