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 received ENERGY STAR® certification and a 95% AFUE efficiency rating. That’s an efficiency rating 40% higher than standard boilers! This boiler proves that sometimes, less is more. More efficiency, more savings, more comfort for your home. Technology is a key component of 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. 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. Have we captured your attention? Let’s switch gears. The GWM-IE boiler is safer and more convenient than standard boilers. A factory-installed low water cut-off switch guarantees safe operation. A CPVC flue condensate collector minimizes the chances of corrosion and leaking. A wall-hung design makes it easy to mount on the wall so you can save space. We’re convinced...what about you? Take a look at the GWM-IE boiler product brochure to learn even more. Our Roy Inch & Sons Service Experts Heating & Air Conditioning team in London will help you with whatever you need to purchase and install a new GWM-IE boiler. Add the most energy efficient and reliable boiler offered by Roy Inch & Sons Service Experts to your home. Schedule an appointment with one of our experts now.