When the Buckeyes, Wolverines, and Nittany Lions get cold, Robertson Heating Supply helps to warm them up. The company distributes heating, air conditioning, and plumbing supplies as well as kitchen products through about 30 locations in Ohio, Michigan, and Pennsylvania. Designers and engineers are also available to help with kitchen, commercial HVAC, and hydronic projects. In addition to its retailing activities, Robertson Heating Supply offers state-certified training programs. The company was founded in 1934.