Air to Air Heat Pumps

Air to Air

Pros :-	The least expensive form of fully installed heat pumps, also used for cooling in older buildings or budget priced motels. The original heat pump / air conditioner (cooling only).
Cons :-	High interior noise levels, poor efficiency Generally used for one room only.
Efficiency :-	Between 1.9:1 and 3.0:1; ie. 1.9kW of heat output requires 1.0kW of electricity input, depending on ambient air temperatures.