Lennox GWB8-E, GWB8-170E-3, 170000 Btu, Up to 83.9 AFUE, Floor Mount, Gas-Fired Water Boiler

### Product Overview

The GWB8-170E-3 boiler offers exceptional efficiency with an AFUE rating of up to 82%, resulting in substantial energy savings compared to older, less efficient models. Enjoy reduced utility bills throughout the winter without the need to frequently adjust your thermostat.

**Key Features:**

- **Vent Damper:** Automatically seals when the boiler shuts off, preserving energy efficiency.
- **Cast Iron Heat Exchanger:** Built for durability and long-term performance, accommodating various water flow rates.
- **Thick Fiberglass Insulation:** Helps reduce heat and energy loss during the cooling phase of the heat exchanger.
- **Electronic Ignition Control:** Enhances efficiency by monitoring water temperature and activating the burner only as needed.