GWB8-E: A Gas-Fire Water Boiler You Can Depend On The Lennox® GWB8-E provides warmth just when you need it most. This boiler features a cast iron heat exchanger and stainless steel burners created to prevent corrosion and oxidation1 and last for years. Consistent heat year after year? It’s just as sweet as it sounds. Similar to our other boilers, this boiler has an electronic ignition control that only turns on the burner when it’s needed. Energy savings are maximized with a thick fiberglass insulation and vent damper, which automatically closes when the boiler turns off. In fact, its efficiency ratings can achieve nearly 84% AFUE, leading to reduced energy bills. Installion is a breeze when it’s the GWB8-E. It’s simple to connect with your radiator system and it’s available in multiple sizes. That means you can install this boiler almost anywhere you want. Don’t want your boiler to use natural gas? That’s okay. The GWB8-E can be fueled by LP gas instead.2 Having many of the qualities we want to see in a boiler, the GWB8-E has it all: well-made parts, energy efficiency and dependability. Call your Teays Valley Service Experts Heating & Air Conditioning in at 304-760-5088 to find out more or schedule a free appointment. We’re located in Hurricane, 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.