Merit® Series ML180 Gas Furnace

Economical, standard-efficiency gas heating

Efficiency rating of 80% AFUE can save you hundreds of dollars each year compared to older furnaces.
Sealed blower compartment minimizes losses and maximizes efficiency and comfort.

• 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
• 20-Year Limited Warranty on heat exchanger
• 5-Year Limited Warranty on covered components
• This product may be eligible for valuable 10-Year Limited Extended Warranty coverage with product registration.

Lennox ML180 Gas Furnace
Lennox ML180 Manual