GWB8-E: A Gas-Fire Water Boiler You Can Depend On The Lennox® GWB8-E offers warmth effectively when you need it most. This boiler features a cast iron heat exchanger and stainless steel burners designed to resist corrosion and oxidation1 and last for years. Consistent heat year after year? It can’t get much better than that. Similar to our some of our other products, this boiler has an electronic ignition control that starts the burner only when it’s needed. It further maximizes energy savings with a thick fiberglass insulation and vent damper, which closes by itself when the boiler turns off. In fact, the GWB8-E’s efficiency ratings can reach nearly 84% AFUE, leading to a decrease in your utility bills. We’re already experts at boiler installations, but the GWB8-E makes our job more simple. It’s easy to integrate with your radiator system and it’s available in multiple sizes. That means you can install this boiler nearly anywhere in your house. Don’t want your boiler to use natural gas? That’s fine. The GWB8-E can alternatively be fueled by LP gas instead.2 Containing three qualities we want to see in a boiler, the GWB8-E has it all: reliable parts, energy efficiency and dependability. Call your Bryant Heating & Cooling Service Experts in at 226-773-3357 to learn more or schedule a free appointment. We’re located in Windsor, so a relaxing home is closer than you might think. 1 262 and 299 models feature titanium burners. 2 Shipped as natural gas; convertible to LP.