Lennox ML180 Commercial Gas Furnaces If you want greater 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 equipment features a power-saving constant-torque motor and silicone nitride ignitor to deliver reliability and an AFUE rating of 80%. Other product details include: Multi-speed, direct-drive slide-out blower Easy 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 San Antonio Air Service Experts Heating & Air Conditioning in San Antonio at 210-570-9705 to discover more benefits. Not only are we experts on HVAC system replacements, but we also will be just down the road when it comes time for routine maintenance and service checks. Remember, when you bring in the experts, you’ll always receive expert service, guaranteed.