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 – that’s up to 40% more efficient than traditional boilers. This boiler proves that sometimes, less is more. More energy efficient, more savings, more comfort for your home. Technology is key 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 distributes an even temperature without turning on and off, which results in a quieter home. Additionally, 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 conventional boilers. A factory-installed low water cut-off switch allows for 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...are you? Browse through the GWM-IE boiler product brochure to learn even more. Our Jack Nelson Service Experts Heating & Air Conditioning team in Tulsa 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 Jack Nelson Service Experts to your home. Schedule an appointment with one of our experts now.