GWM-IE Boilers Offer the Highest Efficiency that will Keep You Warm For the best 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! The GWM-IE proves that sometimes, less is more. More efficient, more savings, more comfort for your family. Technology is the secret to the GWM-IE’s efficiency. It includes a modulating burner that operates primarily on a low-flame setting and adjusts as necessary. This distributes an even temperature without turning on and off, which results in a quieter home. Further, the condensing water feature we mentioned earlier helps trap in heat that would otherwise be wasted, thanks to specially designed tubes in the vertical stainless steel heat exchanger. Have we captured your attention? Let’s switch gears. The GWM-IE boiler is safer and more convenient than conventional boilers. A factory-installed low water cut-off switch allows for safe operation. A CPVC flue condensate collector safeguards against corrosion and leaking. A wall-hung design makes it easy for you to save space with its wall mounting ability. We’re convinced...what about you? Browse through the GWM-IE boiler product brochure to learn even more. Our Neal Harris Service Experts Heating, Air Conditioning & Plumbing team in Kansas City 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 Neal Harris Service Experts to your home. Schedule an appointment with one of our experts now.