His ceramic work has evolved from his interest in pottery. It is grounded in the idea of pottery as having an inner space that is the focus for imagination. Heinemann's self described element of his work is "..., the fundamental, preoccupying thread of containment continues throughout. I’m intrigued with the way spaces can appear to be concentrated. God knows that it’s the same space everywhere - inside or outside - but there’s something about the dynamic of containment that seems to charge one’s attention. Pots have always done that for me. One is held in that interior space perceptually."
Academic career
He has worked as an instructor at Sheridan College, in Mississauga, Ontario, and the Ontario College of Art and Design, in Toronto, Ontario, and has given workshops and lectures in ceramics at schools and universities in Canada, the United States, England, Japan, and Korea.
New York State College of Ceramics at Alfred University, Alfred, New York, 1973–present
