GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re searching for a high-efficiency boiler, consider the Lennox® GWB9-IH boiler. This boiler has received ENERGY STAR® certification, which means it meets or exceeds federal guidelines for energy efficiency. But that’s not all. The GWB9-IH boiler also reached an AFUE rating of 90%, which leads to 90% of the fuel used is converted to heat. Yes, being energy efficient helps the environment, but how does it actually affect you you? Well, you could start seeing a decrease in your utility bills. Another nice benefit is that you may 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 will always be the perfect temperature. The GWB9-IH boiler will quietly warm your home 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. It may seem like a lot, but all this doesn’t add up to a large machine. In fact, the GWB9-IH is compact and easy to install in smaller spaces. Speaking of installation, let our staff at Service Experts Heating & Air Conditioning in Cleveland take care of that for you. When you buy through Service Experts, it just makes sense to have us do your installation and any other necessary HVAC work, too. Since we’re in Cleveland, we’ll be close when it’s time for your regular tune-up. Call 440-252-1375 or schedule a free appointment today so we can help with all your GWB9-IH needs.