Willis Haviland Carrier is said to be the man who invented modern day air conditioning.
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1913
yes it does as the heat pump is more effeciant.
Usually it is a machine for reducing the temperature of the air inside a house or car by using a heat-pump that works on the same principle as a refrigerator. It just makes your house a big refrigerator that you sit inside.
Invented is the past participle of the verb invent. verb /past /past participle = invent /invented /invented
A Reverse cycle Air conditioner is MUCH more efficient than resistance heating. It is called a heat pump, and requires that the Evaporator and Condenser coils of a Closed Refrigerant System be reversed.