A O Smith Protective Coatings Division

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Headquartered in Ashland City, Tenn., A.O. Smith Protective Coating is a part of A.O. Smith, a leading manufacturer and marketer of residential and commercial water heaters and hydronic boilers. A. O. Smith produced its first residential water heater in 1939, establishing a tradition of innovation that continues to this day. In 1953, A. O. Smith shipped its first commercial water heater equipped with a glass-lined tank, which remains the industry standard for protecting steel from the corrosive effects of water.home of the world s largest water heater factory. The company designs, builds, distributes and field supports the world s broadest and deepest line of residential and commercial water heaters, as well as commercial boilers. A.O. Smith Protective Coating has a location in Florence, Ky. The company network includes five manufacturing facilities in North America, plus plants in Nanjing, China and Veldhoven, The Netherlands.