ABOUT Colmac Coil manufacturing Inc.

Since 1971, Colmac Coil has evolved into a world class manufacturer by providing product support that is unsurpassed in the industry. Colmac Coil is a privately held, third generation family-owned company. In 2009, Colmac Coil opened a second manufacturing facility in Illinois and formed a strategic alliance with Baltimore Aircoil to provide Aircoil™ evaporators to the industrial refrigeration market.

Colmac Coil’s 225,000 sq. ft. manufacturing plant, corporate headquarters, warehouses, and R&D test facilities are located in Colville, Washington. The Pacific Northwest location provides close proximity to west coast ports for shipping to Asian and Middle Eastern markets. The Colmac Coil Midwest factory has proven to be ideal for serving customers in the eastern U.S. and Canada.

Colmac Coil Products

Colmac Coil manufactures:
  • New and replacement plate fin heating and cooling coils, dry coolers, air-cooled condensers, and heat pipe air-to-air heat exchangers for the commercial, industrial, and heat transfer markets. 
  • Aircoil™ and custom evaporators, unit coolers, blast freezers, tube bundles, and hydrocoolers for the Freon, ammonia, and glycol/brine commercial and industrial refrigeration markets.
  • Ammonia air cooled condensers for the industrial refrigeration industry. Air cooled condensing with ammonia eliminates costly water usage, water treatment, and sewerage associated with evaporative condensers.

Colmac Coil Capabilities

Customers can trust their custom designs to Colmac Coil’s experienced factory-trained engineering staff and network of authorized manufacturer's representatives. Colmac Coil also meets the following quality, safety, and performance certifications on selected products: ASME Section VIII, AHRI-410, CRN, CSA, CE, PED, and UL.

Colmac Coil Markets

In addition to the HVAC/R industry, Colmac Coil serves a number of vital markets that include aeronautics, beverage, communications, dairy, electronics, energy reclamation, food processing, gas compression, health care, hospitality, industrial process, packaging, pharmaceutical, petrochemical, power generation, pulp and paper, waste and water treatment.



Low-Charge Ammonia in Australia
Bruce Nelson Highlighted in Ecolibrium Magazine
Colmac DX Ammonia Piping Handbook 4th Edition
Colmac Coil Case Study: JOLIET COLD STORAGE Joliet IL
Colmac Coil Case Study: SHEPHERD’S PROCESSED EGG Spanish Fork UT
Colmac Coil Case Study: PREFERRED FREEZER SERVICES Richland WA
Colmac Coil Case Study: US COLD STORAGE Laredo TX
Colmac Coil Case Study: BIDVEST TAMWORTH Tamworth Australia
Colmac Coil Case Study: BIDVEST BIBRA LAKE Perth Australia
Anti-microbial fin Evaporators
Air cooled Ammonia Condensers
3-A Sanitary Design Evaporators


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