Ductless mini split systems, also known as ductless mini splits, are becoming more and more popular in the US. They are known for their high-efficiency, flexibility and ease of installation, among other things.
On a mini split air conditioner, the indoor unit(s), usually referred to as the evaporator, extracts warm air from inside the home or business and runs it over the evaporator coils within. The cold refrigerant in these evaporator coils retains the heat from the warm air and transfers that heat to the outdoor condenser unit through piping. During this process the indoor unit is delivering the remaining cool air into the area being cooled. The heat that was transferred out of the area to be cooled is then removed to the outside air via the outdoor condenser unit. This process is repeated over and over again. That’s how air conditioning works in its simplest form.
Ductless mini splits are typically more efficient than standard central heating and air conditioning systems. One of the reasons is in the name: they are ductless. Standard central heating and air systems usually lose a percentage of the cooled or heated air during the delivery process to the area being cooled or heated. With a ductless system, there is no heat or cooling lost during the delivery process. Air is only moved in the space that it is required. This will certainly save money on the energy bill.
Ductless mini splits can have a SEER rating as high as 38 SEER. A traditional heating and air system cannot match this SEER rating, making ductless systems more efficient than traditional systems.