Lennox ML180DF090E48B Gas Furnace

Reliable, efficient home comfort you can count on.

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Overview

The Lennox ML180DF090E48B is a dependable gas furnace designed to deliver efficient, consistent comfort for your home. Part of Lennox’s Merit® Series, it offers proven reliability, quiet operation, and an energy-efficient design that keeps your home warm and your energy bills low.

Key Features

• 80% AFUE efficiency rating — helps reduce heating costs compared to older systems.

• Durable Duralok™ Plus heat exchanger made of aluminized steel for long-lasting performance.

• Reliable SureLight® ignitor ensures consistent, trouble-free starts.

• Multi-speed blower motor provides even air distribution and quiet operation.

• Compact downflow design fits easily into a variety of installations.

• Compatible with Lennox air conditioners and indoor air quality products for a complete comfort system.

• Backed by Lennox’s trusted warranties for peace of mind.

Performance & Specifications

Heating Efficiency (AFUE): 80%

Heating Input: 88,000 BTU/h

Nominal Output: ≈71,000 BTU/h

Configuration: Downflow (DF)

Ignition System: SureLight® hot surface ignition

Gas Type: Natural gas (convertible to LP)

Blower Motor: Multi-speed direct drive

Venting: Standard 4-inch flue connection

Warranty: 20-year limited on heat exchanger, 5-year limited on covered components