Lennox Residential
Email SignupSign up for email news
ML180 Gas Furnace

Merit® Series

ML180 Gas Furnace

Economical, standard-efficiency gas heating

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.

Overview

Here are some of the top features of the ML180:

Efficiency rating of 80% AFUE can save you hundreds of dollars each year compared to older furnaces.

Sealed blower compartment minimizes losses and maximizes efficency and comfort.

Features

Features and Benefits

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

Reliable Performance

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

Warranty and Specs

Warranty and Specs

  • 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.

ML180 Product Literature

Product Brochures

English

ML180 Gas Furnace Product Brochure

Installation Manuals

English

ML180UH Gas Furnace Installation Manual

Homeowners Manuals

English

ML180 Gas Furnace Homeowners Manual
ML180UH Gas Furnace Homeowners Manual

Reviews

Rated 4.5 out of 5 by 49 reviewers.
Rated 4 out of 5 by Good product I purchased this furnace 2 months ago and have been extremely happy with it. It takes up less space than my old furnace, has lowered my heating bill, and is much quieter and gives more even heat than my previous furnace. I would recommend this product to anyone. May 1, 2013
Rated 5 out of 5 by Excellent product I researched all the top of the line furnaces and air conditioners. My old furnace was 26 years old as well as my air conditioner, (got my money's worth). The furnace and duct work was installed and completed in two and a half hours. They came back the next day and did the air in an hour and a half. They both perform beyond expectation. Lennox is a Quality Product and I would recommend it to anyone. As for a previous comment on being too loud and powerful, Not too loud, and the system was designed to distribute heat-----Mission accomplished!!!! April 22, 2013
Rated 4 out of 5 by ML180UH Gas Furnace As far as I can tell, it works just like any other heater. I turn on the heat and I can feel it come out instantly, and within 5-10 minutes my house reaches the desired temperature. It's also quiet. The only sound it makes is of air coming through the vents. It's a little disappointing that its only 80 percent efficient, but for the price, this is excellent. I also upgraded to the year filter and I am glad about that. I'm really bad at remembering to change those. Also, I'm really glad it's got so many emergency shut offs, because my old one did not and it flooded the floors and melted some of its wires. Also, I like that its not burning gas 24/7. It seems safer that way. Thank you for a good system. I see nothing wrong with it so far. April 18, 2013
Rated 4 out of 5 by The efficiency rating is great The efficiency rating is great. Also the ease of accessibility to the air filter and the clean look I like. It also is quiet and provides the proper temp entire selected when needed. April 18, 2013
Rated 5 out of 5 by Quiet and Efficient My townhome is small and on a concrete slab, so the furnace is basically in my lap. In the past I had to turn up the TV volume when the furnace blower started. Hurray, my new Lennox is so quiet I barely know it's running. No more TV adjusting! In addition, it runs about 1/3 as often, so my fuel cost will drop. Should have done this 10 years ago. April 15, 2013
Rated 5 out of 5 by Would recommend to others While they were installing the furnace I could see inside it was made to resist rusting which my old furnace had done so it is a quality product. It runs quietly and gives more even heat than my previous furnace. April 3, 2013
Rated 5 out of 5 by Efficient, quiet, and compact I purchased this furnace 2 months ago and have been extremely happy with it. It takes up less space than my old furnace, has lowered my heating bill, and is much quieter. I would recommend this product to anyone. April 1, 2013
Rated 1 out of 5 by AWEFUL This furnace is way to loud and forceful. I have not had a good nights' sleep since it has been installed. Even at seting the thermostat at 64 is it still to hot. In my opinion a comfortable setting should be between 66-68. Mixed reviews on this one, some say their furnace is quit, some say too loud. April 1, 2013


Recognitions and Certifications

AHRI Certified Good Housekeeping CSA Design Certified DualFuel

© 2013 Lennox International Inc.