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 includes a cast iron heat exchanger and stainless steel burners built to prevent corrosion and oxidation1 and last for years. Effective 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 starts the burner only when it’s needed. Additional energy savings are possible with the GWB8-E’s thick fiberglass insulation and vent damper, which automatically closes when the boiler turns off. In fact, this boiler’s efficiency ratings can reach nearly 84% AFUE, leading to more dollars subtracted from your monthly utility bills. The GWB8-E makes our installation job even easier. It’s simple to connect with your radiator system and it’s available in multiple sizes. That means you can install this boiler nearly anywhere in your house. Concerned about using natural gas? No problem. 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: reliable parts, energy efficiency and dependability. Call your Boehmers/Cronin Emery Service Experts Heating & Air Conditioning in at 519-804-1617 to learn more or schedule a free appointment. We’re located in Kitchener, 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.