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Dave Lennox Signature® Collection

sl280v

Variable-Speed, Two-Stage Gas Furnace

The quietest furnace in its class

SL280V
Rating
Price Guide
$$$
Efficiency Rating (AFUE)
up to 80
Warranty

For eligible Dave Lennox Signature® Collection 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

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Features

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Illustration of Variable speed keeps you constantly comfortable

Variable speed keeps you constantly comfortable

Variable speed keeps you constantly comfortable

A variable-speed blower maintains comfort with an adjustable flow of air, preventing temperature swings and blasts of air when your system starts. 

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Efficiency you can feel good about

An energy rating of 80% AFUE means the SL280V can significantly reduce your heating costs, comp

An energy rating of 80% AFUE means the SL280V can significantly reduce your heating costs, compared to an older furnace.

A more efficient home environment helps contribute to a better global environment.

A more efficient home environment helps contribute to a better global environment.

Feel good this winter and all year long knowing you can save energy and money without compromis

Feel good this winter and all year long knowing you can save energy and money without compromising on comfort.

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Best furnace I have ever had. It is super quiet.
-Mark707, Oklahoma
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Not a lot of sound, just a lot of perfect air

Because it’s designed with SilentComfort™ technology, the SL280V operates with very low noise levels.

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Two-stage heating for always-on performance

While most furnaces are either off or on, the SL280V can actually deliver two different levels of heat based on how cold it is outside.  This lets it fine-tune fuel use to carefully match your comfort, keeping your home warm and energy-smart.

Two-stage heating for always-on performance
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"The variable speed keeps the temperature very consistent throughout the house, and is much more quiet than I am used to. Gas and electric bills are down."

-PLJ59, Brookfield, IL
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Everything comes together perfectly

Together with other products from the Dave Lennox Signature® Collection, the SL280V takes comfort to an entirely new place.

Get details on the Ultimate Comfort System™

Everything comes together perfectly

Ratings & Reviews

See what other customers are saying about
SL280V Variable-Speed Gas Furnace

5 Stars 5/5

This made such a difference

December 01, 2012

My house after upgrading to Lenox is now more evenly heated in a much shorter run time. Amazing and toasty warm (even in southern california).

Green check mark

Yes, I recommend this product.

Cara

Redondo Beach, CA

Age: 35 to 44

Gender: Female

Reason for Replacement: Planned

Features:
5/5
Price:
4/5
Warranty Satisfaction:
5/5
5 Stars 5/5
May 11, 2026

5 Stars 5/5
May 08, 2026

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Resources

  • AFUE Rating

    When it comes to keeping your home warm and cozy during the colder months, your furnace plays a starring role. But not all furnaces are created equal, especially when it comes to energy efficiency. That’s where AFUE comes in. If you’ve been researching new or replacement heating systems, you’ve probably come across the term AFUE, but what does it actually mean and how can it help you make the best choice for your home?

    Learn More
  • Dual-Fuel
    A comfort system that pairs an electric heat pump with a gas furnace and alternates between the two fuel sources to maximize comfort and efficiency.
    Learn More
  • Gas Furnaces
    A gas furnace is the part of an HVAC system that converts natural gas or propane into high-temperate heat for the home.
    Learn More
  • iComfort®–Enabled
    An iComfort®–enabled product is one that is designed to work with an iComfort® programmable thermostat as part of an advanced home comfort system. When you choose a heating, cooling or humidity control product that’s iComfort-enabled, you’re ensuring a higher level of home comfort and control.
    Learn More
  • * Based on sound pressure levels during steady-state, high-fire and low-fire operation of Lennox SLP98UH070XV36B and leading competitive units as of July 2013 at mid-point temperature rise and minimum external static pressure when set up per Section 4.4.4 of AHRI 260-2012. Based on AFUE efficiency rating of Lennox SLP98UH090XV60C and leading competitive units listed in AHRI directory as of March 2015. Efficiency ratings established per test standard ANSI/ASHRAE 103-1993.
  • ** Furnace model numbers designated with a ‘K’ (SL280VK) 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.
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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