GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re looking for a high-efficiency boiler, look no further than the Lennox® GWB9-IH. This boiler has achieved ENERGY STAR® certification, so it’s met the highest federal guidelines for energy efficiency. But there’s more. The GWB9-IH boiler also achieved 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? First off, you could start seeing a decrease in your utility bills. But, you’ll also 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 quietly warm your home for years to come 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. The benefits are plentiful, but they 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, let our staff at Roland J. Down Service Experts Heating & Air Conditioning in Albany take care of that for you. When you buy through Roland J. Down Service Experts, it just makes sense to have us do your installation and any necessary HVAC repairs, too. Since we’re in Albany, we’ll be nearby when it’s time for a routine tune-up. Call 518-417-2938 or schedule a free appointment today so we can help with all your GWB9-IH needs.