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 achieved ENERGY STAR® certification and a 95% AFUE efficiency rating. That’s an efficiency rating 40% higher than standard boilers! This unit proves that sometimes, less is more. More energy efficient, more savings, more comfort for your home. 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 changes settings as necessary. This produces an even temperature without turning on and off, so you can have 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. Now that we’ve got you hooked, let’s switch gears. The GWM-IE boiler is safer and more convenient than conventional 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 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 Pardee Service Experts Heating & Air Conditioning team in Charleston 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 Pardee Service Experts to your home. Schedule an appointment with one of our experts now.