Dalton Electric Heating Co., Inc was founded in 1921 to manufacture industrial heaters. Today, Dalton's Watt-Flex Cartridge Heaters and Diff-Therm Platen heaters are used throughout the world in manufacturing industries including aerospace, automotive, plastics, composites, and many others. We moved to our present headquarters location in Ipswich, MA in 1989. In 1995, we doubled our manufacturing floor space. In 2000 we completed a two-story addition, housing both office and manufacturing.