Lennox ML180 Commercial Gas Furnaces Boasting increased flexibility in your commercial gas furnace, the Lennox® ML180 could be the system for your company. This multi-position equipment is built to fit nearly all applications. 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 equipment features a power-saving constant-torque motor and silicone nitride ignitor to offer reliability and an AFUE 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 Strogen's Service Experts Heating & Air Conditioning in Rochester at 603-923-4570 to learn more. We’re the experts for all your HVAC replacement needs, but our work doesn’t stop there. We also will be right around the corner when it your routine maintenance visits come around. Remember, when you work through us, you’ll always receive expert service, guaranteed.