A mini-split is a type of heating and cooling system that consists of two main components: an outdoor compressor and one or more indoor air-handling units. This system allows for temperature control in individual rooms or zones, making it energy-efficient and versatile. Mini-splits are often used in homes without ductwork, providing a solution for both heating and cooling needs. These systems operate using refrigerant to transfer heat between the indoor and outdoor units. Mini-splits are known for their quiet operation and easy installation, making them a popular choice for residential and commercial spaces. They can also improve indoor air quality by filtering out dust and allergens.