ARLINGTON, Va. – North American Technician Excellence (NATE), non-profit certification organization for HVACR technicians, will recognize three technicians as Top Techs. This year’s Top Techs include Ken Fulk of Duncan Supply Co.,Inc. in Indianapolis; Eric Kaiser of Appel Heating & Air Conditioning in Carmel, Ind.; and Robert Mullis of Love Heating and Cooling in Indianapolis, Ind.