GWM-IE Boilers Offer the Highest Efficiency that will Keep You Warm For the finest option available in boilers, choose the Lennox® GWM-IE high-efficiency, gas-modulating condensing water boiler. This product earned ENERGY STAR® certification and a 95% AFUE efficiency rating – that’s up to 40% more efficient than traditional boilers. This unit proves that sometimes, less is more. More energy efficient, more savings, more comfort for your family. Technology is key to the GWM-IE’s efficiency. It includes a modulating burner that operates primarily on a low-flame setting and changes settings as necessary. This produces an even temperature without turning on and off, resulting in a quieter home. Further, 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. Since we have your attention, we’re now going to switch gears. The GWM-IE boiler is safer and more convenient than traditional boilers. A factory-installed low water cut-off switch ensures safe operation. A CPVC flue condensate collector minimizes the chances of corrosion and leaking. A wall-hung design makes it easy for you to save space with its wall mounting ability. We’re convinced...are you? Browse through the GWM-IE boiler product brochure to learn even more. Our Midland Air Service Experts Heating & Air Conditioning team in Columbia 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 Midland Air Service Experts to your home. Schedule an appointment with one of our professionals today.