GWM-IE Boilers Offer the Highest Efficiency that will Keep You Warm For the best 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, which is up to 40% more efficient than regular systems. This boiler 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. For example, these boilers include 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, so you can have 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 guarantees safe operation. A CPVC flue condensate collector safeguards against 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? Browse through the GWM-IE boiler product brochure to learn even more. Our Rob's Albertan Service Experts Heating & Air Conditioning team in Edmonton 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 Rob's Albertan Service Experts to your home. Schedule an appointment with one of our experts now.