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 earned ENERGY STAR® certification, meaning it meets or exceeds federal guidelines for energy efficiency. And that’s only the beginning. The GWB9-IH boiler also reached 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? Well, you could enjoy lower energy bills. Another nice benefit is that you may experience a home that heats up quicker 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 heat your home with minimal operating sounds 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. These features don’t add up to a massive machine. In fact, the GWB9-IH boiler is compact and easy to install in smaller spaces. While we’re talking about installation, just have our staff at Peachtree Service Experts Heating & Air Conditioning in Atlanta take care of that for you. When you buy through Peachtree Service Experts, it just makes sense to have us do your installation and any necessary HVAC repairs, too. Since we’re in Atlanta, we’ll be here when it’s time for your regular tune-up. Call 678-235-9699 or schedule a free appointment today so we can make your boiler replacement stress-free.