The MRCOOL MDPHK06D Universal Electric Heat Kit is a 6kW supplemental heating accessory designed for use with compatible MRCOOL packaged HVAC systems. This electric heat kit provides additional warmth by converting electrical energy into heat, helping maintain comfortable indoor temperatures during colder conditions. Installed within the packaged unit, it works alongside the primary h... https://www.partshnc.com/mrcool-universal-series-6kw-electric-heat-kit-for-packaged-systems-mdphk06d