GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re in the market for a high-efficiency boiler, the Lennox® GWB9-IH is the model for you. This boiler has earned ENERGY STAR® certification, so it’s met the highest federal guidelines for energy efficiency. But that’s not all. The GWB9-IH boiler also reached an AFUE rating of 90%, which translates to 90% of the fuel being converted to usable heat. High efficiency products are good for the environment, but how does it actually affect you you? First off, you could start seeing a decrease in your utility bills. Further, you’ll experience a home that warms up quick thanks to the boiler’s cast-aluminum heat exchanger. Even alone, this exchanger 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 will always be the perfect temperature. The GWB9-IH boiler will provide warmth quietly 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. It may seem like a lot, but all this doesn’t add up to a bulky machine. In fact, the GWB9-IH boiler is compact and easy to install in smaller spaces. Speaking of installation, let our experts at Pardee Service Experts Heating & Air Conditioning in Charleston take care of that for you. When you buy through Pardee 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 Charleston, we’ll be close when it’s time for an annual tune-up. Call 843-410-6103 or schedule a free appointment today so we can make your boiler replacement stress-free.