Lennox ML180 Commercial Gas Furnaces If you want increased flexibility in your commercial gas furnace, the Lennox® ML180 could be the system for your company. This multi-position system is created to fit just about 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. In addition, the unit features a power-saving constant-torque motor and silicone nitride ignitor to ensure reliability and an AFUE efficiency rating of 80%. More 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 Chief / Bauer Service Experts Heating & Air Conditioning in Champaign at 217-689-2469 to discover more benefits. Not only are we experts on HVAC system replacements, but we also will be right around the corner when it your routine maintenance visits come around. Remember, when you bring in the experts, you’ll always receive expert service, guaranteed.