AAON (NASDAQ: AAON) designs, manufactures and sells semi-custom heating, ventilation and air conditioning equipment (HVAC) for commercial and residential use. Its subsidiary, AAON Coil Products manufactures a variety of heating/cooling products, as well as, coils used in the heating, ventilation, and air conditioning (HVAC) industry and provides coils to AAON as well as to other customers.