GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re looking for a high-efficiency boiler, the Lennox® GWB9-IH is the model for you. This boiler has received 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 leads to 90% of the fuel used is converted to heat. Yes, being energy efficient helps the environment, but what’s in it for you? For starters, you could start seeing a decrease in your utility bills. But, you’ll also experience a home that warms up quick thanks to the boiler’s cast-aluminum heat exchanger. This exchanger is stunning – it alone 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 be too hot or too cold. It’ll be just right. The GWB9-IH boiler will quietly warm your home for years to come 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. The benefits are plentiful, but they don’t add up to a large machine. In fact, the GWB9-IH is compact and easy to install in smaller spaces. While we’re talking about installation, let our staff at Coastal Service Experts Heating & Air Conditioning in Savannah take care of that for you. When you buy through Coastal Service Experts, it just makes sense to have us do your installation and any necessary HVAC repairs, too. Since we’re in Savannah, we’ll be here when it’s time for your regular tune-up. Call 912-208-2399 or schedule a free appointment today so we can assist with all your GWB9-IH needs.