The MRCOOL MHK07PB VersaPro Package Unit Electric Heat Kit is an HVAC heating accessory designed to provide supplemental or emergency electric heat for compatible MRCOOL VersaPro package units. It works by converting electrical energy into heat, which is distributed through the package unit to maintain comfortable indoor temperatures during colder conditions or when additional heating... https://www.partshnc.com/mrcool-versapro-electric-heat-kit-mhk07pb