Who is the Largest HVAC Manufacturer in the USA? A Comprehensive Guide

The leading manufacturer in the market is Trane with a market share of 22.8%, followed by Lennox with 16.5%. Carrier is in third place with 15.2%, followed by Rheem with 10.8% and York with 7.6%. In this article we'll take a closer look at these five largest HVAC m

Who is the Largest HVAC Manufacturer in the USA? A Comprehensive Guide

The HVAC industry is a competitive one, with many manufacturers vying for the top spot. But who is the largest HVAC manufacturer in the USA? The answer is Trane, with a market share of 22.8%. Following closely behind is Lennox, with 16.5%, and Carrier in third place with 15.2%. Rheem and York round out the top five, with 10.8% and 7.6% respectively.

These manufacturers distribute their products through a combination of independent and industrial property distributors, who then supply equipment and related parts and supplies to contractors and distributors across the country. These contractors and distributors then sell and install the products for consumers, businesses, and other end users. In this article, we'll take a closer look at the five largest HVAC manufacturers in the USA: Trane, Lennox, Carrier, Rheem, and York. We'll explore their product lines, customer service offerings, energy efficiency ratings, warranties, and more.


Trane is a private American manufacturer that manufactures residential and commercial water heaters and boilers, as well as heating, ventilation and air conditioning (HVAC) equipment. The company is headquartered in Atlanta, Georgia and is one of the largest manufacturers of water heating and air conditioning equipment in the United States.

Trane also produces and markets products in Argentina, Armenia, Australia, Bahrain, China, Brazil, Canada, Iraq, Kuwait, Mexico, New Zealand, Oman, Qatar, Saudi Arabia, Singapore, United Arab Emirates and Ukraine. Trane offers a wide range of products for both residential and commercial applications. Their product line includes central air conditioners, heat pumps split air conditioners and air controllers. They also offer a series of specification tools on their website specific to particular industries.


Tulsa-based AAON Heating and Cooling Products is a company that supplies a range of equipment to its many commercial customers. This includes heating, cooling, dehumidification, air movement and energy recovery elements.

In addition to its popular product line AAON also organizes the AAON Technical Academy - a series of courses to train technicians on the products of AARON.


The Bosch Group has been in operation for more than 100 years. In North America Bosch Thermotechnology is the industry leader in high-quality water heaters and air conditioning solutions. They offer sustainable commercial air conditioning systems with a product list that includes tankless water heaters, heat pump water heaters, wall-mounted boilers Buderus boilers and FHP geothermal systems.


With its roots in modern air conditioning since 1915 Carrier has been a world leader in energy efficient heating air conditioning and cooling systems. The company operates within the climate controls and security unit of United Technologies Corp., offering a wide range of products and parts for commercial air conditioning heating and building controls.


In operation for nearly 100 years Rheem is the largest manufacturer of water heating products in North America.

They also have a full line of commercial high-efficiency HVAC products including package air conditioners heat pumps split air conditioners and air controllers. With more than 100 years of experience more than 50 manufacturing facilities and service to more than 180 countries around the world Carrier Heating & Cooling is a dominant force in the HVAC community. The company is a leader in energy efficiency with some models having SEER ratings that match or exceed those of the competition. Customer satisfaction rates are also consistently high across multiple platforms. Trane is another leader in the HVAC industry in both residential & commercial applications. The diverse product selection & commitment to offering highly efficient products are evident in the company's long list of available systems including central air conditioners heat pumps mini-splits & furnaces.

Its range of heat pumps is known for being one of the quietest systems on the market & some models have a rated output of just 43 decibels. Coleman Heating & Air Conditioning Rheem has existed since 1925 & manufactures all types of heating & cooling products including pool heaters cooling products & an extensive line of residential air conditioning products & systems. Although Rheem products are between medium & higher levels of energy efficiency the company itself is very committed to sustainable business practices. While you probably won't have a problem finding a Rheem product that fits your HVAC needs you'll also likely find numerous installation experts nearby all part of the company's huge network of affiliated service providers. American Standard Heating & Air Conditioning is a popular commercial & residential HVAC manufacturer owned by parent company Ingersoll Rand. The Nordyne brand still exists & is still being offered to customers along with Nortek Global HVAC's other smaller brands. It offers residential & commercial HVAC products & solutions under the Frigidaire Tappan Westinghouse & Gibson brands. However American Standard minisplits customers will only have a five-year warranty & none of the company's guarantees are transferable to new homeowners if they sell their home.

However both companies are known for selling high-efficiency quietly-running air conditioning systems & Bryant has a much lower price than Carrier & many of its direct competitors. Like its sister company Bryant products are only available through authorized dealers.


When it comes to choosing an HVAC manufacturer for your home or business needs there are many factors to consider such as product lines customer service offerings energy efficiency ratings warranties etc. The five largest HVAC manufacturers in the USA are Trane Lennox Carrier Rheem & York each offering their own unique advantages when it comes to quality performance & value.

Stuart Henline
Stuart Henline

Total zombie buff. Passionate internet lover. Extreme pop culture advocate. Subtly charming reader. Total coffee aficionado.

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