ml180v
Gas Furnace
Single-stage, 80% fuel-efficient gas furnace with variable-speed fan motor
For eligible Merit series models, homeowners have the opportunity to obtain the default 5‑year parts‑only extension (for a total of 10 years parts‑only coverage) or, in lieu of that option, they have the opportunity to receive 3 years of labor coverage and 2 years of parts coverage (for a total of 3 years labor coverage and 7 years parts coverage). Other terms, conditions, and exclusions apply.
For more information, visit www.lennox.com/warrantyyourway
Heating Savings
Features
Keep temperature swings to a minimum.
Your home will stay perfectly comfortable with steady temperatures, improved humidity control and smart energy use, thanks to a variable-speed motor.
Save energy every month.
An energy-efficient design means this furnace keeps your home comfortable and saves on monthly utility bills. Plus, when paired with a programmable thermostat, you could save up to 35% in utility costs.
A smarter system.
When this furnace is installed with a compatible Lennox heat pump, it creates a heating system that can switch back and forth between gas and electricity automatically, based on whichever is most cost-efficient for the weather conditions at the time.
Ratings & Reviews
See what other customers are saying about
ML180V Gas Furnace
new furnace
May 13, 2026appears to be variable speed furnace which I believe is a little more efficient
Age: 55 - 65
Gender: Male
Reason for Replacement: Planned
Resources
Product Literature
Products that add to the performance of ML180V Gas Furnace
- * Furnace model numbers designated with a ‘K’ (ML180VK) indicate the equipment contains an on board refrigerant detection system. Identical furnace model numbers without a ‘K’ (as shown above) indicate an identical product as to key aspects of the equipment, including rating, performance, and specifications, but specifically exclude an on board refrigerant detection system.


