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. 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. Yes, being energy efficient helps the environment, but how does it actually affect you you? First off, you could see lower utility bills. Another nice benefit is that you may experience a home that heats up fast 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 won’t suffer from heating and cooling inconsistencies – it’ll always be just the temperature you want. 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, having been created with heavy-gauge steel and receiving a baked-on paint finish. These features don’t add up to a massive machine. In fact, this boiler 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 TML Service Experts Heating & Air Conditioning in Boise take care of that for you. When you buy through TML Service Experts, it just makes sense to have us do your installation and any other necessary HVAC work, too. Since we’re in Boise, we’ll be nearby when it’s time for an annual tune-up. Call 208-488-4892 or schedule a free appointment today so we can assist with all your GWB9-IH needs.