Lennox ML180 Commercial Gas Furnaces Boasting more flexibility in your commercial gas furnace, the Lennox® ML180 may be your answer. This multi-position furnace is designed to fit almost any application. 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 equipment 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 Calverley Service Experts Heating and Air Conditioning in Fort Worth at 817-380-5647 to discover more benefits. We’re not just the experts for all your replacement HVAC system needs – we also will be right around the corner when it comes time for routine maintenance and service checks. Remember, when you work through us, you’ll always receive expert service, guaranteed.