GWB8-E: A Gas-Fire Water Boiler You Can Depend On The Lennox® GWB8-E offers warmth just when you need it most. This boiler includes a cast iron heat exchanger and stainless steel burners created to resist corrosion and oxidation1 and last for years. Consistent heat year after year? It really is that good. Similar to our some of our other products, this boiler has an electronic ignition control that starts the burner only when it’s needed. Energy savings are maximized with a thick fiberglass insulation and vent damper, which closes on its own when the boiler turns off. In fact, the GWB8-E’s efficiency ratings can reach nearly 84% AFUE, leading to reduced energy 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 a variety of sizes. That means you can install this boiler nearly anywhere you want. Don’t want your boiler to use natural gas? That’s fine. The GWB8-E can 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 Pardee Service Experts Heating & Air Conditioning in at 843-410-6103 to learn more or schedule a free appointment. We’re located in Charleston, so a comfy home is closer than you might think. 1 262 and 299 models feature titanium burners. 2 Shipped as natural gas; convertible to LP.