GWM-IE Boilers Offer the Highest Efficiency that will Keep You Warm For the finest option available in boilers, select the Lennox® GWM-IE high-efficiency, gas-modulating condensing water boiler. This product earned ENERGY STAR® certification and a 95% AFUE efficiency rating, which is up to 40% more efficient than regular systems. This unit 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. For example, these boilers include 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. Further, the condensing water feature we mentioned earlier helps trap in 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 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 easy to mount on the wall so you can save space. We’re convinced...are you? Take a look at the GWM-IE boiler product brochure to learn even more. Our Service Experts Heating & Air Conditioning team in Raleigh 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 Service Experts to your home. Schedule an appointment with one of our professionals today.