> ...all the work (power) the motor for the compressor
> and the two more for fans of the condenser and
> evaporator, would consume more energy Vs the
> heat efficiency of simply using a resitive heater?
Not at all. The energy of the fan and pump are about 1/3rd or so of the
heat you get out of
All serious heat pumps that have to work at or below freezing ambients
also have a heating element to supply heat and avoid freezing up the
unit.
Many cars already have Airco with a large radiator in the grille to
catch
ambient air, this is typically to get rid of heat in summer to cool the
cabin,
Heat pump performance has improved a lot over the last couple decades mainly
due to new refrigerants that permit operation to below zero F temperatures.
The Fujitsu models for example operate down to -5F:
How can you measure the difference in efficieny by using a
'resistive' heater Vs a compressed gas system? (AC turned backwards)
We have an air conditioned at our home that usually works for cool
air since we have extreme very hot summer here (Hermosillo Sonora Mexico)
but this
