GWM-IE Boilers Offer the Highest Efficiency that will Keep You Warm For the most efficiency in boilers, choose the Lennox® GWM-IE high-efficiency, gas-modulating condensing water boiler. This product received 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 efficiency, more savings, more comfort for you. Technology is key 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 changes settings as necessary. This produces an even temperature without turning on and off, which results in a quieter home. Additionally, the condensing water feature we mentioned earlier helps retain 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 allows for safe operation. A CPVC flue condensate collector safeguards against corrosion and leaking. A wall-hung design makes it possible to save more space. We’re convinced...how about you? Browse through the GWM-IE boiler product brochure to learn even more. Our Roland J. Down Service Experts Heating & Air Conditioning team in Albany will help you with everything you need to purchase and install a new GWM-IE boiler. Add the most energy efficient and reliable boiler offered by Roland J. Down Service Experts to your home. Schedule an appointment with one of our experts now.