GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re looking for a high-efficiency boiler, consider the Lennox® GWB9-IH boiler. This boiler has achieved ENERGY STAR® certification, which means it meets or exceeds federal guidelines for energy efficiency. But that’s not all. The GWB9-IH boiler also produces an AFUE rating of 90%, which means 90% of the fuel is converted to usable heat. We know energy efficiency is great for the environment, but what does it really mean for you? First off, you could enjoy lower energy bills. But, you’ll also experience a home that warms up quick 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 year after year with its sealed combustion. It’ll stay durable for years, too, because it was created with heavy-gauge steel and includes a baked-on paint finish. These features don’t add up to a large machine. In fact, the GWB9-IH boiler is compact and easy to install in smaller spaces. While we’re talking about installation, leave it up to our staff at Service Experts Heating & Air Conditioning in Kingston take care of that for you. When you buy through Service Experts Heating & Air Conditioning, it just makes sense to have us do your installation and any necessary HVAC repairs, too. Since we’re in Kingston, we’ll be nearby when it’s time for an annual tune-up. Call 613-817-1591 or schedule a free appointment today so we can make your boiler replacement stress-free.