Lennox air conditioners are made by Lennox International Inc., an American HVAC company founded in 1895 in Marshalltown, Iowa, and today headquartered in Richardson, Texas.
Lennox is one of the most respected names in the HVAC industry, known for high efficiency, quiet operation, and long-lasting premium systems for residential and commercial use.
Lennox International trades on the New York Stock Exchange under the ticker LII and is the only major HVAC maker to own its full distribution network, allowing dealers to buy factory direct.
Knowing that Lennox is a fully integrated American manufacturer helps explain its premium reputation and why its systems consistently rank among the highest in efficiency and quietness.
This article covers who makes Lennox air conditioners, where they are produced, who owns the brand, its history, how it compares to a rival, and whether the systems are any good.
So let’s get started.
Table of Contents
Who Makes Lennox Air Conditioners?
Lennox air conditioners are made by Lennox International Inc., which designs, engineers, manufactures, and distributes its own HVAC systems.
Lennox is a true manufacturer with its own production facilities, not a brand that outsources to third party factories.
The company was the first HVAC manufacturer to achieve ISO 9000 international quality certification, and it scrutinizes every finished product and every component used in production.
Lennox also owns its distribution network, which is unique in the HVAC industry and allows the company to maintain tight quality and pricing control from factory to dealer.
Lennox International also manages economy brands including Ducane and AirEase through its Allied Air Enterprises subsidiary, as confirmed on the company’s corporate profile.
Where Are Lennox Air Conditioners Made?
Lennox air conditioners are made primarily in the United States, with the company’s largest production campus in Marshalltown, Iowa, spanning nearly one million square feet.
Additional United States manufacturing plants are located in Grenada, Mississippi, Orangeburg, South Carolina, and Carrollton, Texas, covering a wide range of residential and commercial products.
Research and development for the entire Lennox product line is conducted at the company’s innovation center near Dallas, Texas.
Lennox also operates a production facility in Saltillo, Mexico, for certain product lines, and maintains international operations in Stuttgart, Germany, for European markets.
Who Owns Lennox Air Conditioners?
Lennox International is a publicly traded American company that was privately held by the Norris family from 1904 until its initial public offering in 1999.
John W. Norris III, a descendant of D.W. Norris who acquired the company from founder Dave Lennox in 1904, holds approximately 9.8% of shares and remains a significant stakeholder.
The company reports full-year results as Lennox International Inc., traded on the NYSE under the ticker LII, with annual revenues reaching several billion dollars.
In March 2026, Lennox announced an expansion into residential water heating through a joint venture with Ariston, further broadening its home comfort portfolio, as covered in Lennox’s company history.
What Is Lennox Best Known For?
Lennox is best known for producing some of the highest efficiency and quietest residential air conditioners available in North America.
The XC21 and XC25 models have historically achieved SEER ratings above 20, placing Lennox among the leaders in energy efficiency across all HVAC brands.
Lennox was the first HVAC manufacturer to develop a two-speed hermetic compressor and the first to introduce high-efficiency gas furnaces to the residential market.
The brand also introduced the industry’s quietest residential air conditioner in the XC21, a benchmark product that cemented its premium reputation.
Lennox Air Conditioners vs Carrier Air Conditioners: How Do They Compare?
Lennox and Carrier are two of the three major American premium HVAC brands and are often compared head to head.
Lennox tends to lead on maximum efficiency and quietness, particularly in its top tier systems, and appeals to homeowners who prioritize utility savings and low noise.
Carrier offers a broader range of tiers from entry level to premium, a wider dealer network, and a longer history of industry firsts including the invention of modern air conditioning in 1902.
Both are premium choices, and the decision often comes down to which local dealer provides better installation and service rather than brand level differences.
Are Lennox Air Conditioners Any Good?
Lennox air conditioners are consistently rated among the best in the industry for efficiency, quietness, and build quality.
The brand’s premium systems regularly earn top marks from homeowners for long service life, low energy bills, and near-silent operation.
One common trade-off is that Lennox parts can be harder to find and more expensive to replace than those from brands with broader distribution, which is worth factoring into a long term ownership decision.
Lennox requires factory-certified dealers for installation, which ensures quality installation but can limit the number of contractors available in some areas.
For homeowners who want the highest efficiency and quietest operation available and are willing to invest in a premium system, Lennox is an easy recommendation.
For more on the Lennox brand family, see Who Owns Lennox HVAC and Who Makes American Standard Air Conditioners.
Frequently Asked Questions About Lennox Air Conditioners
Who makes Lennox air conditioners?
Lennox air conditioners are made by Lennox International Inc., an American company founded in 1895 and headquartered in Richardson, Texas. It is publicly traded on the NYSE under the ticker LII.
Are Lennox air conditioners made in the USA?
Yes, most Lennox air conditioners are made in the United States, primarily in Marshalltown, Iowa, with additional plants in Mississippi, South Carolina, and Texas. Some products are made in Saltillo, Mexico.
Is Lennox a premium HVAC brand?
Yes, Lennox is considered a premium HVAC brand. Its systems are known for industry-leading efficiency ratings, quiet operation, and long service life, typically priced at a premium compared to mid-tier brands.
What warranty does Lennox offer?
Lennox offers 5-year to 10-year limited warranties depending on the model and registration status. Premium systems with registered installation can qualify for 10-year parts coverage on key components.
I am Jack Neel, a mechanical engineer, researcher, and writer. I created this website to share my knowledge about different brands and products with you. I research the manufacturers behind the brands and provide you with the information you need to make smart buying decisions.