If you are thinking of installing a new air conditioning system or updating your older unit with a more efficient cooling unit, then split system air conditioner is one of the best options to consider. A split air conditioner has a compressor, which is located outside, and an air outlet unit, which is installed inside. Unlike the system that needs complex ductwork, split system air conditioning unit requires the ductwork only to connect the compressor to air unit. Copper pipes that cycle through the unit to produce either hot or cold air is used to disperse the refrigerant. Split system air conditioning unit is highly efficient. It not only minimizes your energy bills, but also keeps the environment clean.