Thermal Circuits Inc. is a manufacturer of surface heaters, air heaters, molded heaters, heater assemblies, and infrared panel emitters. We service a wide variety of markets and geographic areas and, through continuous quality improvement, strive to maintain world-class leadership in all aspects of our business.

Founded in 1955 by Francis Brown in Salem, twenty miles north of Boston, Massachusetts, the company first manufactured graphite lubricant and nichrome wire heat sheets for hot trays, casseroles, and carafes for the food service industry. By the mid-1960's, Thermal Circuits initiated development of etched foil element technology and pioneered the use of polyimide film as an electrical insulation for etched foil element gyro and camera heaters in the military and aerospace industries.

"Firsts" from Thermal Circuits continued during the 1970's and 1980's. We designed, prototyped and produced heaters and assemblies for the first etched foil-heated cafeteria food service stations, infant incubators, hospital warming cabinets, automobile side-view mirrors, kitchen electrics(mini-skillets, deep-fat fryers), and personal care appliances(mist hair setters, styling wands).

This growth prompted the construction in 1996 of a single-storied, 52,000 square foot building which is Thermal Circuits' new home. Still in Salem, the company is owned by its corporate partners and is the anchor company in a newly-developed industrial park. The new facility is state-of-the-art and second to none.