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HVAC brand guide

Lennox
heating & cooling.

Heating, cooling, indoor-air-quality, and connected-control systems with roots dating to 1895.

Founded 1895History 131 years as of 2026
LennoxHeating, cooling & air quality

Company background

Where Lennox started

Lennox began in Marshalltown, Iowa, in 1895, when Dave Lennox developed a riveted-steel furnace. The company has since grown into a residential and commercial climate-control manufacturer.

The current residential range includes furnaces, air conditioners, heat pumps, packaged equipment, mini-splits, boilers, controls, and indoor-air-quality products.

Read the official company history

Equipment lineup

What Lennox makes

The exact models available can change, but the brand’s current HVAC range includes these main categories.

  • Central air conditioners, heat pumps, and furnaces
  • Air handlers, packaged units, and boilers
  • Mini-split heating and cooling systems
  • Thermostats, zoning, and connected controls
  • Air purification, humidity, ventilation, and filtration products

Brand profile

What homeowners may recognize

  • More than a century of heating and cooling history
  • Premium variable-capacity comfort systems
  • Integrated controls and indoor-air-quality options
  • Residential product lines at several feature and efficiency levels

Warranty overview

Lennox warranty basics

Lennox uses product- and series-specific Basic Limited Warranty terms. For eligible equipment, Warranty Your Way may provide a no-cost choice between longer parts coverage and a combination of parts and labor coverage when registration requirements are met.

  • Eligible Merit and Elite products may receive 10 years of parts-only coverage or an alternate 7-year parts/3-year labor option.
  • Eligible Dave Lennox Signature products may receive 12 years of parts-only coverage or an alternate 10-year parts/3-year labor option.
  • Where permitted, eligible equipment generally must be registered within 60 calendar days to obtain or select supplemental coverage.
  • Eligibility, jurisdiction rules, installation date, model, terms, and exclusions must be confirmed with Lennox’s current documents.
Important: This is a plain-language overview, not a warranty promise. The current manufacturer document for the exact model, serial number, installation date, location, and owner controls.

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