Lennox ML180 Commercial Gas Furnaces If you want more flexibility in your commercial gas furnace, the Lennox® ML180 may be your answer. This multi-position system is built to fit nearly all applications. With a 33” design profile and capacity range of 44,000-132,000 Btuh, models are available in both upflow/horizontal or dedicated downflow designs. Further, the system features a power-saving constant-torque motor and silicone nitride ignitor to offer reliability and an AFUE efficiency rating of 80%. Other 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 Service Experts Heating & Air Conditioning in Toronto at 905-453-6700 to learn more. We’re not just the experts for all your replacement HVAC system needs – we also will be minutes away when it the time comes for your scheduled maintenance and service tune-ups. Remember, when you work through us, you’ll always receive expert service, guaranteed.