GWM-IE Boilers Offer the Highest Efficiency that will Keep You Warm For the most efficiency in boilers, select the Lennox® GWM-IE high-efficiency, gas-modulating condensing water boiler. This product achieved ENERGY STAR® certification and a 95% AFUE efficiency rating. That’s an efficiency rating 40% higher than standard boilers! This unit proves that sometimes, less is more. More efficiency, more savings, more comfort for your family. Technology is the secret to the GWM-IE’s efficiency. For example, these boilers include a modulating burner that operates primarily on a low-flame setting and adjusts as necessary. This produces an even temperature without turning on and off, so you can have a quieter home. Moreover, the condensing water feature we mentioned earlier helps keep in the heat that would otherwise be wasted, thanks to specially designed tubes in the vertical stainless steel heat exchanger. Now that we’ve got you hooked, let’s switch gears. The GWM-IE boiler is safer and more convenient than conventional boilers. A factory-installed low water cut-off switch guarantees safe operation. A CPVC flue condensate collector safeguards against corrosion and leaking. A wall-hung design makes it easy to mount on the wall so you can save space. We’re convinced...how about you? Take a look at the GWM-IE boiler product brochure to learn even more. Our Service Experts Heating & Air Conditioning team in Charlotte will help you with all the details to purchase and install a new GWM-IE boiler. Add the most energy efficient and reliable boiler offered by Service Experts to your home. Schedule an appointment with us today.