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 features a cast iron heat exchanger and stainless steel burners designed to resist corrosion and oxidation1 and last for years. Reliable heat year after year? It can’t get much better than that. Similar to our other boilers, this boiler has an electronic ignition control that only turns on the burner when it’s needed. It further maximizes energy savings with a thick fiberglass insulation and vent damper, which closes on its own when the boiler turns off. In fact, its efficiency ratings can reach nearly 84% AFUE, leading to a decrease in your utility bills. The GWB8-E makes our installation job even easier. We can easily integrate it with your radiator system and it’s available in a variety of sizes. That means you can install this boiler almost anywhere in your house. Concerned about using natural gas? That’s okay. The GWB8-E can also be fueled by LP gas instead.2 Containing three qualities we want to see in a boiler, the GWB8-E has it all: well-made parts, energy efficiency and dependability. Call your Coastal Service Experts Heating & Air Conditioning in at 912-208-2399 to learn more or schedule a free appointment. We’re located in Savannah, 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.