GWB9-IH Boilers: High-Efficiency with Faster Heat Transfer If you’re searching for a high-efficiency boiler, the Lennox® GWB9-IH is the model for you. This boiler has achieved ENERGY STAR® certification, which means 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 leads to 90% of the fuel used is converted to heat. Yes, being energy efficient helps the environment, but what does it really mean for you? First off, you could start seeing a decrease in your utility bills. Further, you’ll 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 won’t suffer from heating and cooling inconsistencies – it’ll always be just the temperature you want. The GWB9-IH boiler will provide warmth quietly for years 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, this boiler is compact and easy to install in smaller spaces. While we’re talking about installation, let our professionals at Service Experts Heating & Air Conditioning in Shreveport take care of that for you. When you buy through Service Experts, it just makes sense to have us do your installation and any necessary HVAC repairs, too. Since we’re in Shreveport, we’ll be nearby when it’s time for a routine tune-up. Call 318-588-8163 or schedule a free appointment today so we can make your boiler replacement stress-free.