What is a ductless heat pump?

A ductless heat pump is a highly efficient zonal heating and cooling system that does not require the use of air ducts. Ductless heat pump systems consist of an outdoor compressor unit and one or more indoor air-handling units, called “heads”, linked by a refrigerant line. Indoor heads are typically mounted high on a wall or ceiling covering a hole where the refrigerant line passes through to the outside unit, which is mounted at the base of the house. Each indoor head corresponds with a heating and cooling zone that can be controlled independently.