GWM-IE Boilers Offer the Highest Efficiency that will Keep You Warm For the most efficiency in boilers, go with 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 energy efficient, more savings, more comfort for your family. Technology is the secret to the GWM-IE’s efficiency. Some of this technology is shown through 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, resulting in 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. 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 protects against 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? Check out the GWM-IE boiler product brochure to learn even more. Our Abbey Air Service Experts Heating & Air Conditioning team in Oakville 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 Abbey Air Service Experts to your home. Schedule an appointment with one of our experts now.