GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re in the market for a high-efficiency boiler, consider the Lennox® GWB9-IH boiler. This boiler has earned ENERGY STAR® certification, which means it meets or exceeds federal guidelines for energy efficiency. But that’s not all. 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? First off, you could start seeing a decrease in your utility bills. Another nice benefit is that you may experience a home that heats up quicker 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 heat your home with minimal operating sounds year after year with its sealed combustion. It’ll stay durable for years, too, having been created with heavy-gauge steel and receiving a baked-on paint finish. The benefits are plentiful, but they don’t add up to a massive machine. In fact, this boiler is compact and easy to install in smaller spaces. Speaking of installation, just have our professionals at Knochelmann Service Experts Heating & Air Conditioning in Sharonville take care of that for you. When you buy through Knochelmann 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 Sharonville, we’ll be close when it’s time for your regular tune-up. Call 859-905-0834 or schedule a free appointment today so we can help with all your GWB9-IH needs.