Precision Boilers manufactures gas and electric boiler products, deaerators, water heating systems, tanks and other boiler room components. Its products include: hot water and steam boilers; heat transfer packages; unfired generators; pressure vessels; water heaters; and high pressure boilers. Precision Boilers is ISO:9002 certified and holds the coveted Chinese Safety and Quality License. The company was founded in 1946 and is located in Morristown, Tenn. In 1983, Precision was sold to Machinery Manufacturing of East Tennessee and relocated to Morristown.