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Merit® Series

ml180e

Mid-Efficiency Gas Furnace

Economical gas furnace with Power Saver™ technology

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ML180E Gas Furnace
Rating
Price Guide
$
Efficiency Rating (AFUE)
80
Warranty

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.

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Heating Savings

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Features

Illustration of Constant comfort and efficiency

Constant comfort and efficiency

Constant comfort and efficiency

The ML180E’s Power Saver™ constant torque motor adjusts airspeed based on demand, helping the furnace use less energy in both heating and cooling modes.

Heating performance that won't drive up utility costs

When compared to a standard single-speed motor, the Power Saver motor delivers significant energy savings, without sacrificing comfort.
Heating performance that won't drive up utility costs

Keeping you comfortable and energy smart

The ML180E has an AFUE of 80%, which means that 80 cents of every dollar spent on gas goes directly to heating your home. With an ML180E furnace, you could be saving hundreds of dollars every year when compared to an older, less efficient unit.
Keeping you comfortable and energy smart

Dual-fuel operation for even greater efficiency

When the ML180E is paired with a Lennox® heat pump, it creates a system that automatically switches between electricity and gas, keeping you warm and energy efficient.
Dual-fuel operation for even greater efficiency
Illustration of Comfort you can rely on

Comfort you can rely on

Comfort you can rely on

From its heavy-gauge cabinet and ArmorTuf™ aluminized steel heat exchanger to its tightly-sealed blower compartment, the ML180E is built to deliver years of dependable comfort.

Ratings & Reviews

See what other customers are saying about
ML180E Gas Furnace

5 Stars 5/5

Excellent Product

October 28, 2026

It is working perfectly and we are very satisfied.

Green check mark

Yes, I recommend this product.

David Youmans

Age: Over 65`

Gender: Male

Reason for Replacement: Emergency

Features:
5/5
5 Stars 5/5
October 27, 2026

5 Stars 5/5
October 27, 2026

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AZ Air Cond & Heating

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Marker
Second
Rio Verde
Tom's Thumb Trailhead
Kierland
McDowell Mountain Regional Park
Mountain Gate
Eagle Mountain
Butterfly Wonderland
Roadrunner Park
Grayhawk Golf Club
Alhambra
Fountain Hills
Hurricane Harbor Park
Fort McDowell
Phon D Sutton
Arizona Business Park
Glendale
Thunder Bird Conservation Park
Taliesin West
Foxwood
Phoenix Mountains Preserve
Paradise Valley
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Resources
California Only

This furnace does not meet the South Coast Air Quality Management District (SCAQMD) Rule 1111 NOx emission limit (14 ng/J) and cannot be installed in the SCAQMD.

If installed in San Joaquin Valley Air Pollution Control District (SJVAPCD) only: This furnace does not meet the SJVAPCD Rule 4905 NOx emission limit (14 ng/J), and thus is subject to a mitigation fee of up to $450.

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