Evenheat Kiln was founded in 1948 by John and Margaret Watson. The beginning of Evenheat can be traced indirectly back to the late 1890's when Margaret's grandmother was a china painter. Not having kilns at the time she fired her ware in a pit in the backyard. Margaret so admired her grandma's lovely paintings that she decided to try her hand at this art.

John decided to build a kiln to fire his wife's ware. This eliminated transporting the fragile china across town for firing. It was suggested that John build kilns for shops to sell: hence the birth of Evenheat. Personal kilns were unique at this time with Evenheat being one of the pioneers.