Gensco doesn't just blow hot air, it circulates it and keeps it cool. The company is a wholesale distributor of heating, ventilation, and air conditioning (HVAC) equipment for both residential and commercial use. It sells more than 15,000 products to professional HVAC dealers and contractors through about 25 branches in Alaska, Idaho, Montana, Oregon, and Washington. Gensco sells leading brand supplies from Honeywell, Mitsubishi Electric, and Rheem; products include air conditioning units, boilers, fireplaces, gas furnaces, circulating pumps, humidifiers, insulation, roof fans, and water heaters, as well as controls, thermostats, valves, ducts, and pipes. Gensco was founded in 1947 as General Sales Company.