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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 efficiency 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 4.3 out of 5 by 55 reviewers.
Rated 1 out of 5 by This product does not push enough heat. I am very disappointed in my new furance. It does not heat the house properly. Blows pea warm air not hot. Run's way more than my old furnace ever did. I'm am now affraid of what my gas bill will be. We also had a new air conditioner put in I hope it cool 's the house and doesn't run like the furance. Not a happy consumer! March 31, 2014
Rated 5 out of 5 by 3 years and no problems Had the furnace and AC upgraded when we moved into this house. The previous one looked like it was made in the 1950's, so needles to say this Lennox was a great improvement. 3 years on it still runs like new. March 28, 2014
Rated 2 out of 5 by Below average furnace The furnace keeps home warm--but it is the noise that makes me sorry I purchased it. I can hear the burner and fan noise at a level that is disturbing. I am surprised your company would produce a furnace this noisy. I believe I will have to replace it and take a big loss. February 27, 2014
Rated 1 out of 5 by LOUD I recently installed a lennox ML180UH gas furnace & it is sooo loud it sounds like the salimander heater in the barn. We've converted it from natural gas to lp & we have excessive burner noise. Any ideas?? January 21, 2014
Rated 1 out of 5 by 2nd year,nothing but problems My furnace is on its 2nd heating year and already having issued with it.replaced control board and still not working. now the tech thinks its the gas control valve and that is on order. never buying a lennox product again. January 8, 2014
Rated 5 out of 5 by Solid unit; no problems; inexpensive Been using a ML180 (ML180UH090P48B-01) for over 1.5 years so far. No problems. Smaller and quieter than old unit. I wish the user manual would give a description of the meaning of the LEDs though September 22, 2013
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


Recognitions and Certifications

AHRI Certified Good Housekeeping CSA Design Certified DualFuel

© 2014 Lennox International Inc.