Lennox ML180 Commercial Gas Furnaces If you want increased flexibility in your commercial gas furnace, the Lennox® ML180 may be your answer. This multi-position system is created to fit just about any application. With a 33” design profile and capacity range of 44,000-132,000 Btuh, we carry models in both upflow/horizontal or dedicated downflow designs. In addition, the system features a power-saving constant-torque motor and silicone nitride ignitor to ensure reliability and an AFUE rating of 80%. Additional product details include: Multi-speed, direct-drive slide-out blower Easy installation and toolless entry for speedy maintenance Sealed blower compartment 10-Year Limited Warranty on the ML180 heat exchanger 1-Year Limited Warranty on covered components Call Stevenson Service Experts Heating & Air Conditioning in Dayton at 937-503-7896 to discover more benefits. We’re the experts for all your HVAC replacement needs, but our work doesn’t stop there. We also will be just down the road when it the time comes for your scheduled maintenance and service tune-ups. Remember, when you bring in the experts, you’ll always receive expert service, guaranteed.