The MRCOOL UHK08 is an 8kW electric heat kit designed to provide supplemental and emergency heating for compatible MRCOOL Universal Series R-454B air handlers. Installed inside the air handler, its electric heating elements generate additional warmth when the heat pump requires extra heating capacity, particularly during colder conditions. The integrated circuit breaker helps provide ... https://www.partshnc.com/mrcool-8kw-universal-heat-kit-uhk08