The principal advantages of mini-splits are their small size and flexibility for cooling individual rooms. Some models can handle four rooms connected to one outdoor unit.
Mini-split systems last about the same number of years as your traditional HVAC system. With good maintenance and not excessive use, they should last 20 years.
The cost of purchasing and installing a ductless mini-split air conditioning installation costs $1,700 to $8,500. This is dependent on the quality and room size you want to heat or cool.
Ductless AC systems work precisely as regular AC units but without air ducts. When in AC mode, the air handler runs warm air from inside the house over evaporator coils filled with refrigerant. The refrigerant absorbs heat from the air. The heat is then sent to the outdoor unit.
A split AC unit or ductless air conditioning system is a cooling unit that might include heating and does not include ductwork. There are two components in a split system. An outdoor heat pump and an air handling unit that is located outdoors.