The answer to 'what does mini split do' is a mini-split air conditioning system, also known as a ductless mini-split, is a type of HVAC system that provides heating and cooling for a specific room or area of a home without the need for ductwork. It consists of an outdoor compressor/condenser unit and one or more indoor air-handling units (or evaporator units) connected by refrigerant lines. The indoor units are installed high on a wall and can be controlled independently, allowing you to customize the temperature in different zones of your home.
Mini-split systems are popular for their energy efficiency, flexibility, and ability to provide targeted cooling or heating where you need it most. They are often used to add air conditioning to a room or area that doesn't have existing ductwork, or to supplement a central HVAC system in hard-to-reach areas. Mini-splits are also a good option for homes with additions, conversions, or other spaces that are difficult to incorporate into a central system.