GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re in the market for a high-efficiency boiler, look no further than the Lennox® GWB9-IH. This boiler has achieved 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 means 90% of the fuel is converted to usable heat. Yes, being energy efficient helps 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 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 heat your home with minimal operating sounds 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. As long as we’re on the topic of installation, let our staff at Peitz Service Experts Heating & Air Conditioning in Pierre take care of that for you. When you buy through Peitz Service Experts, it just makes sense to have us do your installation and whatever HVAC repairs come up down the road, too. Since we’re in Pierre, we’ll be here when it’s time for your regular tune-up. Call 605-223-0307 or schedule a free appointment today so we can make your boiler replacement stress-free.