Manufacturing of other heating system products, including wall and baseboard heating units, boilers, expansion tanks, mechanical stokers, nonelectric prefabricated metal fireplaces, electric swimming pool heaters, direct-fired water heater tanks, oil and

Facility	City	State	Employees	Status
Accurate Felt & Gasket Manufacturing CO	Cicero	IL	20–99	● ACTIVE
Aldrico, INC.	Wyoming	IL	20–99	● ACTIVE
ACAmerican Casting and Manufacturing Corporation	Plainview	NY	20–99	● ACTIVE
Borga Steel Buildings & Components INC	Fowler	CA	—	● ACTIVE
Chromalox, INC.	La Vergne	TN	100–499	● ACTIVE
Crown Technical Systems	Fontana	CA	100–499	● ACTIVE
DIDurex International CORP.	Cary	IL	100–499	● ACTIVE
Garlock Sealing Technologies LLC	Palmyra	NY	100–499	● ACTIVE
Garlock Sealing Technologies LLC	Houston	TX	20–99	● ACTIVE
International Commerce & Marketing CORP.	Milwaukee	WI	100–499	● ACTIVE
Lundell Manufacturing CORP	Minneapolis	MN	—	● ACTIVE
MIMestek INC	Westfield	MA	100–499	● ACTIVE
Monarch-mclaren Limited	Elkhorn	WI	1–19	● ACTIVE
New England Die Cutting, INC.	Methuen	MA	—	● ACTIVE
Ogi Process Equipment, INC.	Sand Springs	OK	20–99	● ACTIVE
PSPerformance Sealing INC	Irvine	CA	20–99	● ACTIVE
Preferred Utilities Manufacturing Corporation	Danbury	CT	100–499	● ACTIVE
Premier Furnace Specialists INC	Farmington Hills	MI	20–99	● ACTIVE
Ravenswood Studio INC	Lincolnwood	IL	100–499	● ACTIVE
Rubberlite, INC	Huntington	WV	100–499	● ACTIVE
Sealing Equipment Products Co, INC	Alabaster	AL	20–99	● ACTIVE
Spira Manufacturing Corporation	San Fernando	CA	20–99	● ACTIVE
Super Radiator Coils Limited Partnership	Richmond	VA	—	● ACTIVE
The Mellen CO INC	Concord	NH	1–19	● ACTIVE
Turner Bellows INC.	Rochester	NY	20–99	● ACTIVE
West Coast Gasket CO.	Brea	CA	20–99	● ACTIVE
Ace Heaters LLC	Corona	CA	—	● ACTIVE
Advanced Converting, Inc,	Chandler	AZ	20–99	● ACTIVE
Advanced Cooling Technoglies INC	York	PA	20–99	● ACTIVE
Advance Products & Systems LLC	Scott	LA	—	● ACTIVE
Alternate Energy Technologies, L.l.c.	Green Cove Springs	FL	—	● ACTIVE
American Flexible Products INC	Chaska	MN	—	● ACTIVE
American High Performance Seals, INC	Oakdale	PA	—	● ACTIVE
ASAmerican Seal and Engineering Company, INC.	Orange	CT	20–99	● ACTIVE
ATAmerimade Technology, INC.	Livermore	CA	—	● ACTIVE
Aquila, INC.	Albuquerque	NM	20–99	● ACTIVE
Aviation Devices and Electronic Components, L.l.c.	Fort Worth	TX	20–99	● ACTIVE
Bal Seal Engineering, INC.	Foothill Ranch	CA	—	● ACTIVE
Barnes & Jones, LLC	Randolph	MA	—	● ACTIVE
Cambridge Engineering, INC.	Chesterfield	MO	—	● ACTIVE
CPCdi Products, LLC	Humble	TX	100–499	● ACTIVE
Chesapeake Bay Rubber & Gasket CO INC	Norfolk	VA	—	● ACTIVE
Chromalox INC	Ogden	UT	—	● ACTIVE
Clean-seal INC	South Bend	IN	20–99	● ACTIVE
Compucraft Industries, INC	Santee	CA	—	● ACTIVE
Compumeric Engineering, INC.	Ontario	CA	—	● ACTIVE
Dickey Opco, LLC	Saint Charles	IL	—	● ACTIVE
Dooley Gasket and Seal, INC	Broomall	PA	20–99	● ACTIVE
Egc Operating CO LLC	Chardon	OH	20–99	● ACTIVE
Energy Reconnaissance INC	Anaheim	CA	—	● ACTIVE
Ergoseal, INC	Carol Stream	IL	—	● ACTIVE
Fcx Systems INC	Morgantown	WV	—	● ACTIVE
Fmi Chemical, INC	Bloomfield	CT	—	● ACTIVE
Greene Tweed & CO INC	Kulpsville	PA	—	● ACTIVE
Greene, Tweed & Co., LLC	Houston	TX	—	● ACTIVE
GMGreentech Manufacturing, INC	International Falls	MN	20–99	● ACTIVE
Hale Industries, INC	Fortville	IN	1–19	● ACTIVE
Hapco INC	Kent	OH	20–99	● ACTIVE
Heatron, INC	Leavenworth	KS	—	● ACTIVE
Hi-heat Industries, INC.	Lewistown	MT	—	● ACTIVE
Indeeco LLC	Saint Louis	MO	—	● ACTIVE
Jbc Technologies, INC.	North Ridgeville	OH	—	● ACTIVE
Josephson Manufacturing Company	Fort Dodge	IA	—	● ACTIVE
Kanomax Fmt, INC	White Bear Lake	MN	—	● ACTIVE
KIKenneth Industrial Products, INC.	Durham	CT	1–19	● ACTIVE
Klinger Igi INC	Wilsonville	OR	20–99	● ACTIVE
K&s Enterprises, LLC	Adelanto	CA	—	● ACTIVE
Ldj Manufacturing, INC.	Pella	IA	—	● ACTIVE
MSMagnetic Seal LLC	Warren	RI	20–99	● ACTIVE
MSMamac Systems, INC.	Chanhassen	MN	20–99	● ACTIVE
Melco Steel INC	Azusa	CA	—	● ACTIVE
Mercer Rubber Company	Bellmawr	NJ	20–99	● ACTIVE
Messersmith Manufacturing, INC.	Bark River	MI	—	● ACTIVE
Neptech, INC.	Highland	MI	—	● ACTIVE
New Buck CORP	Spruce Pine	NC	—	● ACTIVE
North Coast Seal INC	Brookpark	OH	—	● ACTIVE
O2 Cool Manufacturing LLC	Decatur	TX	20–99	● ACTIVE
Pacmet Aerospace, LLC	Corona	CA	—	● ACTIVE
Polymer Concepts Technologies Pby, INC.	Apple Valley	CA	—	● ACTIVE
Precision Control Systems INC	Eden Prairie	MN	—	● ACTIVE
Quality Industrial Products INC	Phoenix	AZ	—	● ACTIVE
Ramda Metal Specialties, INC.	Gardena	CA	—	● ACTIVE
Red Maple Manufacturing, INC	East Saint Louis	IL	—	● ACTIVE
Ri Packing & Insulation LLC	Attleboro	MA	—	● ACTIVE
Rock Energy Systems LLC	Janesville	WI	100–499	● ACTIVE
Roman Global Resources INC	San Clemente	CA	—	● ACTIVE
RIRoxtec INC	Tulsa	OK	100–499	● ACTIVE
SSScully Signal Company	Wilmington	MA	—	● ACTIVE
Seal & Design INC	Clarence	NY	100–499	● ACTIVE
Seal-ryt CORP.	Westfield	MA	—	● ACTIVE
Stallings Industries, INC.	Jasper	GA	—	● ACTIVE
TETayco Engineering, INC.	Cypress	CA	—	● ACTIVE
TGTechnetics Group LLC	Columbia	SC	100–499	● ACTIVE
Tempco Electric Heater Corporation	Wood Dale	IL	—	● ACTIVE
TEThe Electric Heater CO	Stratford	CT	—	● ACTIVE
TPThermetic Products, INC.	Minneapolis	MN	—	● ACTIVE
Tri Fab Associates, INC	Fremont	CA	—	● ACTIVE
TLTutco, LLC	Cookeville	TN	—	● ACTIVE
United Precision Corporation	Washougal	WA	—	● ACTIVE
UPUS Precision Sheet Metal, INC.	Riverside	CA	—	● ACTIVE

FactoryRegistry lists 1,088 facilities whose primary industry classification is one of the 2 industries above. This is a list by industry, not a list of makers: Census reports that establishments in these industries produced other heating system products, including wall and baseboard heating units, boilers, expansion tanks, mechanical stokers, nonelectric prefabricated metal fireplaces, electric swimming pool heaters, direct-fired water heater tanks, oil and, 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.