A mini split air conditioner is a ductless heating and cooling system designed to provide individualized temperature control for specific rooms or zones within a building. It consists of two main components: an outdoor compressor/condenser unit and one or more indoor air-handling units (evaporators) mounted on walls or ceilings. These units are connected by a small conduit that carries refrigerant, power cables, and a condensation drain. Unlike traditional central air conditioning systems that use ductwork to distribute cool air throughout a home, mini splits avoid energy losses associated with ducts since they deliver air directly into each room. Each indoor unit has its own thermostat for precise, room-by-room temperature control, which can lead to energy savings by cooling or heating only occupied spaces. Mini split systems are relatively easy to install because they require only a small hole through the wall for the connecting conduit. They are ideal for homes or additions without existing ductwork, older homes, or areas where installing ducts is impractical. Some mini splits also function as heat pumps, providing both heating and cooling efficiently. Overall, mini split air conditioners offer flexible, efficient, and customizable climate control without the need for bulky duct systems. They are popular for retrofits, room additions, and energy-efficient homes.