How is ductless different from central air conditioning?
A thermostat contained in the indoor unit and regulated by an infrared remote control, like a TV remote, can control the amount of cold air entering the room. One room or one area of a building can maintain a different temperature from another room or area in the same building. In a central air conditioning system, refrigerant is pumped from the outdoor condenser coil indoors to a single indoor coil from which cooled air is distributed to each room through a system of ducts. In many houses and businesses, the amount of cold air in one room cannot be regulated without changing the temperature of every room in the building.
