Manufacturing of warm air furnaces and humidifiers, including duct and electric furnaces and portable humidifiers

Facility	City	State	Employees	Status
KSKb Sheetmetal Fabrication, INC.	Fountain Valley	CA	—	● ACTIVE
Kentuckiana Curb Company, INC	Louisville	KY	—	● ACTIVE
Lippe Federal, LLC	Oklahoma City	OK	20–99	● ACTIVE
MDMeggitt Defense Systems, INC.	Irvine	CA	100–499	● ACTIVE
Midwest Cooling Towers INC	Chickasha	OK	—	● ACTIVE
Millrock Technology INC	Kingston	NY	20–99	● ACTIVE
Modine Manufacturing CO	Racine	WI	100–499	● ACTIVE
Mojave Energy Systems, INC.	Sunnyvale	CA	—	● ACTIVE
OPO.e.m. Precision LLC	Stanton	CA	—	● ACTIVE
Opti Temp INC	Traverse City	MI	—	● ACTIVE
Oxy-gon Industries INC	Epsom	NH	—	● ACTIVE
Pacific Corrugated Pipe Company, LLC	Sacramento	CA	—	● ACTIVE
Pacmet Aerospace, LLC	Corona	CA	—	● ACTIVE
Pittsburgh Tubular Shafting, INC.	Rochester	PA	1–19	● ACTIVE
Powers Equipment CO INC	Warminster	PA	—	● ACTIVE
Rock Energy Systems LLC	Janesville	WI	100–499	● ACTIVE
Scientemp CORP	Adrian	MI	—	● ACTIVE
Sumitomo (shi) Cryogenics of America INC	Allentown	PA	—	● ACTIVE
Surfacide, LLC	Waukesha	WI	—	● ACTIVE
The Filtrine Manufacturing Company, INC.	Keene	NH	—	● ACTIVE
Thermal Care INC	Niles	IL	—	● ACTIVE
TITrucut INC	Sebring	OH	20–99	● ACTIVE
Active Energy Systems INC	Knoxville	TN	—	● ACTIVE
Afb Manufacturing LLC	Garland	TX	—	● ACTIVE
Air Care Solution LLC	Toa Baja	PR	—	● 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 warm air furnaces and humidifiers, including duct and electric furnaces and portable 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.