GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re in the market for a high-efficiency boiler, the Lennox® GWB9-IH is the model for you. This boiler has achieved ENERGY STAR® certification, which means it meets or exceeds federal guidelines for energy efficiency. And that’s only the beginning. The GWB9-IH boiler also produces an AFUE rating of 90%, which means 90% of the fuel is converted to usable heat. High efficiency products are good for the environment, but what’s in it for you? Well, you could start seeing a decrease in your utility bills. Further, you’ll experience a home that heats up quicker thanks to the boiler’s cast-aluminum heat exchanger. Even alone, this exchanger can transfer heat three times faster than those made with cast iron. An electronic ignition control will monitor water temperature and turn the boiler on only when necessary, so your home won’t suffer from heating and cooling inconsistencies – it’ll always be just the temperature you want. The GWB9-IH boiler will quietly warm your home year after year with its sealed combustion. It’ll stay durable for years, too, since it was made with heavy-gauge steel and has a baked-on paint finish. These features don’t add up to a massive machine. In fact, the GWB9-IH boiler is compact and easy to install in smaller spaces. Speaking of installation, let our staff at Rob's Albertan Service Experts Heating & Air Conditioning in Edmonton take care of that for you. When you buy through Rob's Albertan Service Experts, it just makes sense to have us do your installation and whatever HVAC repairs come up down the road, too. Since we’re in Edmonton, we’ll be close when it’s time for an annual tune-up. Call 780-800-9047 or schedule a free appointment today so we can assist with all your GWB9-IH needs.