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. And that’s only the beginning. The GWB9-IH boiler also produces an AFUE rating of 90%, which translates to 90% of the fuel being converted to usable heat. Yes, being energy efficient helps the environment, but what’s in it for you? For starters, you could see lower utility bills. But, you’ll also 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 won’t be too hot or too cold. It’ll be just right. The GWB9-IH boiler will provide warmth quietly 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 bulky machine. In fact, the GWB9-IH is compact and easy to install in smaller spaces. As long as we’re on the topic of installation, leave it up to our staff at Service Experts Heating & Air Conditioning in Salt Lake City take care of that for you. When you buy through Service Experts, it just makes sense to have us do your installation and any other necessary HVAC work, too. Since we’re in Salt Lake City, we’ll be here when it’s time for a routine tune-up. Call 801-871-8425 or schedule a free appointment today so we can make your boiler replacement stress-free.