> Reverse-cycle air conditioning (heat pump) uses typically three times
less energy than a resistive heater for the same amount of heat.

Amen.  Mount it in the EV so you can flip it around.

I have a window AC in a bathroom hole-in-the-wall so that I can slide it
out and reverse it in winter.  It provides plenty of heat when the outside
is above 40.  It provides as much heat as the 1500W electric heater but
only draws 5 amps. (Though it is noiser in the winter)...

I used to have a 10,000 BTU window AC unit mounted under the floor of our
center hallway.  Instead of 10,000 BTU of cooling, I got 30,000 BTU of
heat up into the room (while cooling the basement in winter).  But the
basement never got below 60, since it has a huge heat source (the ground,
laundry and waste heat from the oil boiler).  This AC (heat pump) would
come on by timer at 9 PM (when the electricity dropped to 2 cents/kWh) and
maintain the whole house at temperarure through the night Keeping the oil
thermostat from kicking back on.

It was easy to find old AC units during appliance collection day on the
side of the street.  Over the years, I must have picked up a dozen AC
units and EVERY one of them only had one problem, the same problem, the
fan motor was gunked up and never oiled (or a few had bad thermostats).  A
little oil most often restored the fans to normal operation.

Don't need it anymore.  Installed a geothermal system and got rid of Oil
heat!

Bob
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