President, Boiler Systems Earle Pfefferkorn joined Cleaver-Brooks in April 1998 as part of the Aftermarket Products Group. He was promoted to Vice President of Marketing and Distribution Sales in 2003 and has served as President of the Packaged Boiler Systems Group since 2005. Prior to joining the company, Pfefferkorn held engineering, marketing and operations positions in the heat transfer and metal fabrication industry. He is a member of the board of directors of the Air-Conditioning, Heating and Refrigeration Institute and the University of Wisconsin-Parkside, and is a member of the American Boiler Manufacturers Association (ABMA) and the Council of Industrial Boiler Owners. Pfefferkorn holds a bachelor's degree in Mechanical Engineering and a master's degree in Business Administration from the University of Wisconsin.