

How Do Ductless (Mini-Split) Air Conditioners Work?

A ductless mini-split air conditioner works like a regular central air conditioner but without the ducts.

How’s that possible?  The indoor unit blows warm air from your home over cold evaporator coils. The refrigerant running through these coils absorbs the heat from the air and brings it to…The outside unit is where the refrigerant dumps all the heat it pulled from your home’s air.

Now in a regular split system air conditioner, the indoor unit is in the attic or closet. Ducts carry your home’s air to this central location, where it is cooled and then returned to your home via more ducts. But, in a mini-split ductless system, the smaller indoor unit is actually in the room it’s cooling.