The MRCOOL MCAEHFD5X1AA Signature Series Multi-Position Air Handlers Heat Kit is an electric heating accessory designed for compatible MRCOOL Signature Series multi-position air handlers. It converts electrical energy into supplemental heat and works with the air handler’s blower to distribute warmed air throughout the duct system. Designed for residential HVAC applications, this heat... https://www.partshnc.com/mrcool-signature-series-5kw-heat-kit-mcaehfd5x1aa