GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re in the market for a high-efficiency boiler, consider the Lennox® GWB9-IH boiler. This boiler has earned ENERGY STAR® certification, meaning it meets or exceeds federal guidelines for energy efficiency. But that’s not all. The GWB9-IH boiler also achieved an AFUE rating of 90%, which translates to 90% of the fuel being converted to usable heat. High efficiency products are good for the environment, but how does it actually affect you you? Well, you could start seeing a decrease in your utility bills. Further, you’ll experience a home that heats up fast thanks to the boiler’s cast-aluminum heat exchanger. This exchanger alone transfers 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 heat your home with minimal operating sounds for years with its sealed combustion. It’ll stay durable for years, too, having been created with heavy-gauge steel and receiving a baked-on paint finish. These features don’t add up to a massive machine. In fact, this boiler is compact and easy to install in smaller spaces. While we’re talking about installation, leave it up to our staff at Calverley Service Experts Heating and Air Conditioning in Fort Worth take care of that for you. When you buy through Calverley 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 Fort Worth, we’ll be nearby when it’s time for a routine tune-up. Call 817-380-5647 or schedule a free appointment today so we can help with all your GWB9-IH needs.