Manufacturing of parts for warm air furnaces, including duct furnaces (excluding complete humidifiers)

Facility	City	State	Employees	Status
Sierra Nevada 24/7 INC.	Loomis	CA	—	● ACTIVE
Skycool Systems INC.	Mountain View	CA	—	● ACTIVE
Snowbird Technologies INC.	Jacksonville	FL	—	● ACTIVE
Solidcold CORP	Chino	CA	—	● ACTIVE
Spartan Systems LLC	Bermuda Run	NC	—	● ACTIVE
SDS-ram Dynamics LLC	Franklin	TN	—	● ACTIVE
Stellar Energy Global Infrastructure, INC.	Jacksonville	FL	—	● ACTIVE
Stellar Scientific, LLC	Baltimore	MD	—	● ACTIVE
Stirling Cryogenics INC.	Lehighton	PA	—	● ACTIVE
TETactical Environmental Systems INC	Milford	OH	—	● ACTIVE
Tecogen INC.	North Billerica	MA	—	● ACTIVE
Tek-temp Instruments, INC.	Croydon	PA	—	● ACTIVE
Temperature Testing Technologies LLC	Phoenixville	PA	—	● ACTIVE
TET E Technology, INC.	Traverse City	MI	20–99	● ACTIVE
Thermal Edge, INC.	Irving	TX	—	● ACTIVE
Thermax Environmental Systems LLC	Queen Creek	AZ	—	● ACTIVE
Thermell Manufacturing Products, LLC	Fort Worth	TX	—	● ACTIVE
Thermo-cycler Industries INC	Union Mills	IN	—	● ACTIVE
TFThermodyne Food Service Products, INC.	Fort Wayne	IN	—	● ACTIVE
TFThermo Fisher Scientific	Asheville	NC	500+	● ACTIVE
TATisdale Air Conditioning and Heating Company	Conroe	TX	—	● ACTIVE
Tld America Corporation	Windsor	CT	—	● ACTIVE
Tower Engineering, INC.	Fort Worth	TX	—	● ACTIVE
Tower Tech Services INC	San Antonio	TX	—	● ACTIVE
Trane U.s. INC.	Davidson	NC	—	● ACTIVE
Transaera INC	Somerville	MA	—	● ACTIVE
Transport Refrigeration INC.	De Pere	WI	—	● ACTIVE
Ts Air Sciences LLC	Midland Park	NJ	—	● ACTIVE
Unico, INC.	Arnold	MO	—	● ACTIVE
United Chill Tech	San Dimas	CA	—	● ACTIVE
United Klima Technologies Michigan LLC	Sturgis	MI	—	● ACTIVE
United Refrigeration INC	Paducah	KY	—	● ACTIVE
United Refrigeration INC	Manchester	NH	—	● ACTIVE
United Refrigeration INC	Baltimore	MD	—	● ACTIVE
United Refrigeration INC	Fife	WA	—	● ACTIVE
United Refrigeration INC	Worcester	MA	—	● ACTIVE
United Refrigeration INC	Lawton	OK	—	● ACTIVE
United Refrigeration INC	Raleigh	NC	—	● ACTIVE
United Refrigeration INC	Lincoln Park	MI	—	● ACTIVE
United Refrigeration INC	Louisville	KY	—	● ACTIVE
United Refrigeration, INC.	Albany	GA	—	● ACTIVE
US Air Services INC	Placida	FL	—	● ACTIVE
USA Mechanical & Energy Services, LLC	East Granby	CT	—	● ACTIVE
VIValsamis, INC.	Houston	TX	—	● ACTIVE
Venturedyne LTD	Holland	MI	—	● ACTIVE
Veotec Americas LLC	Eagan	MN	—	● ACTIVE
Water Harvesting INC.	Fremont	CA	—	● ACTIVE
Whaley Products INC	Mckinney	TX	—	● ACTIVE
York International CORP	Waynesboro	PA	—	● ACTIVE
York International Corporation	Milwaukee	WI	—	● ACTIVE

FactoryRegistry lists 1,593 facilities whose primary industry classification is one of the 1 industry above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced parts for warm air furnaces, including duct furnaces (excluding complete humidifiers), in the shares shown above, and does not say which establishments. Where a plant’s own website or a federal registry names what that plant makes, it appears on the plant’s own page with the source named.

The U.S. Census Bureau recorded this product line in 1 US manufacturing industry in the 2022 Economic Census, as the most specific line that industry reported, where 28 establishments reported producing it.

These are counts of establishments by industry: the Economic Census publishes them as industry totals and never as a list of plants.

NAPCS collection code 2038600000. Source for the product line, the establishment counts and the shares: U.S. Census Bureau, 2022 Economic Census (ECNNAPCSIND2022). Federal source data is public domain. Facility records are compiled separately by FactoryRegistry and carry their own sources.