GWB8-E: A Gas-Fire Water Boiler You Can Depend On The Lennox® GWB8-E offers heat just when you need it most. This boiler includes a cast iron heat exchanger and stainless steel burners designed to avoid corrosion and oxidation1 and last for years. Effective 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 turns the burner on only 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, this boiler’s efficiency ratings can achieve nearly 84% AFUE, leading to more dollars subtracted from your monthly utility bills. We’re already experts at boiler installations, but the GWB8-E makes our job more simple. We can easily integrate it with your radiator system and it’s available in multiple sizes. That means you can install this boiler nearly anywhere in your home. Don’t want your boiler to use natural gas? No problem. The GWB8-E can also be fueled by LP gas instead.2 Featuring most all the qualities we want to see in a boiler, the GWB8-E has it all: reliable parts, energy efficiency and dependability. Call your Mountainwest Service Experts Heating & Air Conditioning in at 385-399-0280 to learn more or schedule a free appointment. We’re located in Salt Lake City, so a cozy home is closer than you might think. 1 262 and 299 models feature titanium burners. 2 Shipped as natural gas; convertible to LP.