Lennox ML180 Commercial Gas Furnaces If you’re looking for greater flexibility in your commercial gas furnace, the Lennox® ML180 may be your answer. This multi-position furnace 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. Further, the system features a power-saving constant-torque motor and silicone nitride ignitor to ensure reliability and an AFUE efficiency rating of 80%. Other product details include: Multi-speed, direct-drive slide-out blower Simple 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 Midland Air Service Experts Heating & Air Conditioning in Columbia at 803-399-7208 to learn more. We’re not just the experts for all your replacement HVAC system needs – we also will be minutes away when it your routine maintenance visits come around. Remember, when you work with us, you’ll always receive expert service, guaranteed.