Heat pumps used for cooling aren’t any more efficient than an air conditioner, as they are exactly the same technology. The only difference between an air conditioner and a heat pump, is that the heat pump has a valve that lets it work in either direction (to heat or cool), while an air conditioner lacks that valve, and thus only ever cools on one side, and heats on the other.
A window air conditioner turned around so that the exhaust is facing inside the room acts as a heat pump.
While air conditioners/heat pumps are efficient, they still use a lot of electricity. A heat pump is usually considered efficient in comparison to a resistive heater, which is 100% efficient compared to a heat pump’s 300%.
Those are proper heat pumps, they have the extra valve. I’m not used to them since my window AC units back when I had them were from the late 80’s and mid 90’s 😅
Heat pumps are a much more energy efficient alternative.
Heat pumps used for cooling aren’t any more efficient than an air conditioner, as they are exactly the same technology. The only difference between an air conditioner and a heat pump, is that the heat pump has a valve that lets it work in either direction (to heat or cool), while an air conditioner lacks that valve, and thus only ever cools on one side, and heats on the other.
A window air conditioner turned around so that the exhaust is facing inside the room acts as a heat pump.
While air conditioners/heat pumps are efficient, they still use a lot of electricity. A heat pump is usually considered efficient in comparison to a resistive heater, which is 100% efficient compared to a heat pump’s 300%.
What about AC units that do heat as well? There are also COP ratings for heating with AC, same as for cooling.
Those are proper heat pumps, they have the extra valve. I’m not used to them since my window AC units back when I had them were from the late 80’s and mid 90’s 😅
In general ac units are heatpumps. Efficency gains would be had from building insulation.
Are they more efficient than an evap cooler?