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
Hamilton Engineering Three Rivers, Michigan
Hamlin Companies Garner, North Carolina
Harris Brothers Roof & Sheet Metal Company Charleston, West Virginia
Hart and Cooley Inc. Turners Falls, Massachusetts
Hart and Cooley Inc. Huntsville, Alabama
Hart and Cooley Inc. Sanger, California
Hart and Cooley Inc. Grand Rapids, Michigan
Hart and Cooley Inc. Olive Branch, Mississippi
Hartell Pumps Ivyland, Pennsylvania
Haydon Corporation Grand Prairie, Texas
Hays Fluid Controls Dallas, North Carolina
Heat Controller Inc. Jackson, Michigan
Heat Pipe Technology Inc. Tampa, Florida
Heat Transfer Products (HTP) East Freetown, Massachusetts
Heat Transfer Products (HTP) New Bedford, Massachusetts
Heatco Cartersville, Georgia
Heating & Cooling Products Byesville, Ohio
Heating & Cooling Products Mt. Vernon, Ohio
HeatPly Inc. Petaluma, California
Hercules Industries Denver, Colorado
Hercules Industries Salt Lake City, Utah
Hercules Industries Denver, Colorado
HFC Enterprises Los Angeles, California
Hinkley Avon Lake, Ohio
Honeywell International Inc. Murfreesboro, Tennessee
Honeywell International Inc. Golden Valley, Minnesota
Honeywell International Inc. Morris Plains, New Jersey
Hotspot Energy Inc. Chesapeake, Virginia
Hunter Fan Company Memphis, Tennessee
Hydro-Temp Corporation Pocahontas, Arkansas
IAC Acoustics North Aurora, Illinois
Ice Air LLC Mount Vernon, New York
ICM Controls Corporation North Syracuse, New York
Ideal Tape Company Lowell, Massachusetts
Imperial Manufacturing Group Alton, Illinois
Impresind S.r.l. Gorgonzola, Milano
Indeeco Brentwood, Missouri
Infinity Refrigeration Inc. Santa Fe Springs, California
Infloor Heating Systems Buena Vista, Colorado
Innovair Miami, Florida
Innovative Energy, Inc. Crown Point, Indiana
International Comfort Products (ICP) Lewisburg, Tennessee
International Environmental Corporation (IEC) Oklahoma City, Oklahoma
iO HVAC Controls Indianapolis, Indiana
Islandaire St. James, New York
J&M Fluidics Inc. Telford, Pennsylvania
Johns Manville Denver, Colorado
Johnson Bros Metal Forming Company Berkeley, Illinois
Johnson Controls Largo, Florida
Johnson Controls Milwaukee, Wisconsin