Sector: Heating, Ventilation, & A/C

Market Overview: The heating, ventilation, and air conditioning (HVAC) market is the largest energy-efficient product sector in the United States in terms of dollar volume and boasts a significant amount of domestic manufacturing. Products made here feed the domestic market and are exported to markets around the world.

The market for advanced HVAC products is growing, fueled primarily by the ongoing replacement of older units as well as continued demand from regulators and consumers for new and increasingly efficient products. Heating and air conditioning equipment is measured by the seasonal energy efficiency ratio (SEER) rating, defined by the Air Conditioning, Heating, and Refrigeration Institute. The SEER rating measures the ratio of heating/cooling to the amount of energy input. Increasingly stronger building standards and government incentives are driving retrofits and new construction, which drives demand for efficient HVAC systems.

Large HVAC equipment such as central air conditioning, furnaces, and boilers continue to be made in the United States with significant domestic content. In contrast, smaller products—such as window air conditioners, dehumidifiers, humidifiers, and ceiling fans (except for high-end)—are exclusively manufactured outside the United States. Exhaust fans and similar ventilation products are an exception to the size rule as they are made both domestically and overseas. 

Manufacturers in the HVAC market became more consolidated during the late 2010s due to buyouts; however, the four largest manufacturers still only account for half of industry-wide market share. The diverse set of products manufactured for the HVAC market, especially in non-residential sectors, have attracted many small to medium-sized manufacturers across the country, many of them with 20 employees or fewer. While the larger manufacturers are more nationally recognized, there are still smaller, independently owned and operated U.S. manufacturers making products such as boil­ers, commercial systems, and geothermal systems to meet regional market needs. Ductwork, especially commercial ductwork, is especially localized due to the need for custom fabrication and installation. [iv] [v]

The results of the following search include only companies with U.S. manufacturing locations. Use the Advanced Search to see results that include importers and exporters. Learn more about Building Clean and the information we collect.

Company Location
Sound Seal Agawam, Massachusetts
SouthernTier Custom Fabricators Elmira, New York
Southwark Metal Manufacturing Company Caldwell, Idaho
Southwark Metal Manufacturing Company Indianapolis, Indiana
Southwark Metal Manufacturing Company Fremont, Nebraska
Southwark Metal Manufacturing Company Southaven, Mississippi
Southwark Metal Manufacturing Company Piedmont, South Carolina
Southwark Metal Manufacturing Company Philadelphia, Pennsylvania
Spinfinity Inc. Algona, Washington
Spinnaker Industries Inc. Louisville, Kentucky
Spiral Pipe of Texas (SPOT) Fort Worth, Texas
Spiramir Corporation Danville, California
Spruce Environmental Technologies, Inc. Ward Hill, Massachusetts
Stamped Fittings Inc. Elmira Heights, New York
Standard Metal Products Manufacturing LLC Minneapolis, Minnesota
STEFFES Corporation Grand Forks, North Dakota
STEFFES Corporation Dickinson, North Dakota
STEFFES Corporation Grand Forks, North Dakota
Steril-Aire Inc. Valencia, California
Stiebel Eltron West Hatfield, Massachusetts
Style Crest, Inc. Fremont, Ohio
Sub-Zero Group Inc. Goodyear, Arizona
Sub-Zero Group Inc. Madison, Wisconsin
Sub-Zero Group Inc. Fitchburg, Wisconsin
Summerwind International LLC Grapevine, Texas
Sun Power Technologies Westfield, Indiana
Suncourt Inc. Durant, Iowa
Sunpentown International City of Industry, California
SunStar Heating Products Inc. Charlotte, North Carolina
Suntec Industries Inc. Glasgow, Kentucky
Superior Boiler Works Hutchinson, Kansas
Superior Sheet Metal Hudson, New Hampshire
Sussman Electric Boilers Long Island City, New York
Swan Group Randolph, Massachusetts
Swegon North America Murfreesboro, Tennessee
Systemair, Inc. Lenexa, Kansas
Taco Comfort Solutions Fall River, Massachusetts
Taco Comfort Solutions Cranston, Rhode Island
Tal-Mar Custom Metal Fabricators Crestwood, Illinois
Talbott Solar and Radiant Homes Davis, California
Tecumseh Products Company Tupelo, Mississippi
Tecumseh Products Company Ann Arbor, Michigan
The Whalen Company Easton, Maryland
Therma-Stor LLC Madison, Wisconsin
Thermafiber, Inc. Joplin, Missouri
Thermafiber, Inc. Wabash, Indiana
Thermal Solutions Products LLC Lancaster, Pennsylvania
Thermo Manufacturing Canton, Ohio
Thermo Products, LLC North Judson, Indiana
Thermo Products, LLC Denton, North Carolina