Controlled Energy Corp., supplier of tankless hot water heating systems, celebrated its 25th anniversary with a reception at Boston's “Cheers” pub during ISH North America. Pierre and Mary Moffroid founded the company in 1979, initially operating out of their barn in Warren, Vt. Their sons, Eric and Greg, joined the company in 1995. In partnership with the Robert Bosch Group, in 1997 CEC unveiled a new generation of Aquastar tankless water heaters in the United States. A third son, Dan, joined the firm in 2002. Today the company, now headquartered in Waitsfield, Vt., employs more than 80 people.