Split System Air Conditioner: An Efficient and Versatile Cooling Solution A split system air conditioner is an increasingly popular choice for cooling and heating homes and offices due to its. efficiency And. versatility . Unlike traditional window units, a split system consists of two main components:. Indoor unit: blows cooled or heated air into the room. Outdoor unit: dissipates heat outside. This design offers several advantages that make it ideal for various spaces, incl