If you mean using a window AC and installing it backwards so it rejects heat indoors, no and yes, no it does not initially, however as an AC unit has no defrost cycle, eventually the outdoor coil will frost and require defrosting, if this is not done, conceivably liquid refrigerant could enter the compressor and damage it.
its called a heat pump
No it does not, it has to do with the cooling system of the engine and the heater. Refrigerant is used in the Air Conditioner.
The air conditioner or heater continually runs.
the answer is air conditioner
BIOSPHERE
BIOSPHERE
Yes, a remote control is included with the LG 7000 / 3850 BTU Air Conditioner / Heater.
If your heater is a heat pump , then yes.
The car has a new radiator and the air conditioner was serviced last year
If dust is coming from your air conditioner, you did not put in a filter. You will ruin your air conditioner running it without a filter. Also, the vents will get dusty. You need to clean them.
This has much to do with how the air conditioner and the heater is vented. If the air conditioner draws its air from outside it could be picking up air / smell of smoke from the other family and then redistributing it into your home. A heater on the other had usually has a heater input vent within the house it is heating (it draws the interior air in and then heats it blowing it back out) as the air within the home will be significantly warmer than the exterior air.
check fuse.