Split System Air Conditioners are fixed and require installation by a professional. They consist of two parts, one that is attached to the inside wall that allows you to feel the air, and the other being on the outside which exhausts the heat out. They are efficient, quiet, and a lot more powerful. Split systems will cool or heat larger areas quickly. Features include built-in wifi as well as motion sensors and air ionisers. Domestic split system air conditioners range from 2-2.9 KW to around 9-9.9 KW. Fujitsu, Kelvinator, Mitsubishi Electric, Panasonic and Teco offer a large selection of split system Air conditioners, which all have their own unique features and often include a 5-year warranty.