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 furnace is designed to fit nearly all applications. With a 33” design profile and capacity range of 44,000-132,000 Btuh, models are sold in both upflow/horizontal or dedicated downflow designs. Moreover, the system features a power-saving constant-torque motor and silicone nitride ignitor to deliver reliability and an AFUE efficiency rating of 80%. Additional product details include: Multi-speed, direct-drive slide-out blower Simple installation and toolless entry for quick maintenance Sealed blower compartment 10-Year Limited Warranty on the ML180 heat exchanger 1-Year Limited Warranty on covered components Call Parker Pearce Service Experts Heating & Air Conditioning in Gaithersburg at 301-476-4577 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 minutes away when it your routine maintenance visits come around. Remember, when you work through us, you’ll always receive expert service, guaranteed.