Ductless systems connect an outdoor unit with an indoor unit to heat or cool one specific zone of a home without the use of ductwork.
Components of a ductless system
Installing a ductless system is not only easy, but it allows for flexibility in where you deliver heating and cooling in your home without the use of ductwork. An outdoor unit is placed outside your home–often at ground level, but not always–and is connected to an indoor unit by small cables and a refrigerant line through a hole in the wall. The indoor unit is typically mounted high on the wall of the room and can be pre-set to run automatically or be adjusted by a remote control.
Mini-split versus multi-split
The mini-split ductless system controls one room or zone by connecting one outdoor unit to one indoor unit. A multi-split ductless system can connect one outdoor unit to up to five indoor units—depending on the indoor and outdoor model—letting you control the heating and cooling in several zones or rooms independently of each other.
Where ductless is needed
A ductless system is a great solution for homes without a central heating/cooling system or when a room is added onto a house or an attic is converted to living space. Instead of extending the home’s existing ductwork, a ductless system can provide efficient heating and cooling at a lower operational cost.