Split ACs are generally used to cool one or more rooms, or an open-plan area. A compressor unit is installed outside and then one or two outlets are positioned indoors.

Pros:

• More flexibility on where to locate the outside component than wall models
• Can cool open-plan areas well
• Very quiet operation – less noise
• Attractive and aesthetic designs
• Good air distribution for ACs of same size

Cons:

• Won’t cool more than a couple of rooms or a single open-plan area
• More expensive than portable air conditioner or window air conditioner
• Have separate internal and external units which need to be joined. This requires drilling, fixing of piping and fixing the internal unit permanently. Re-locating the indoor unit requires dismantling both internal & external units and joints.