The MRCOOL PHK15H ProDirect Series Heat Kit 15 kW is a supplemental electric heating accessory designed for compatible MRCOOL ProDirect Series air handlers. It generates additional heat by converting electrical energy into warm airflow, ensuring reliable indoor comfort during colder weather. Ideal for residential HVAC systems, this heat kit enhances heating performance when the primar... https://www.partshnc.com/mrcool-15-kw-heat-kit-for-prodirect-series-phk15h