Economical, standard-efficiency gas furnace

Enjoy the exceptional comfort that comes with reliable Lennox® engineering. The ML180's durable, high-quality design ensures long-lasting performance. And with an efficiency rating of 80% can save you in energy costs, especially compared to an older furnace.
Efficiency rating of 80% AFUESealed blower compartment
Efficiency rating of 80% AFUE can save you hundreds of dollars each year compared to older furnaces.
Read more
Sealed blower compartment minimizes losses and maximizes efficiency and comfort.
Read more

The ML180 Gas Furnace At A Glance:

Energy Efficiency

    • Efficiency rating of 80% AFUE—can save you hundreds of dollars each year, compared to older furnaces
    • Dual-fuel capability—can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs


    • Duralok Plus™ heat exchanger—made of high-quality, patented ArmourTuf aluminized steel
    • Hot surface igniter—controls furnace operation to ensure reliable, efficient performance