1st timer here. I parked in the yard on plywood; covered the wheels; emptied all tanks,new cover arrives tomorrow, all food removed and it's on household current shore cord. My question is this: Can ...
The heater will not keep piping or water in the walls or in the floor from freezing. You need to either blow it all out or use RV anti-freeze.
Rotating the tires a half turn is not worth doing.
Starting the generator, if hard to do in the cold, it is not worth doing. Trying to start a cold generator once a month can do more harm than good. If you do start it, run it under a good load for half an hour, don't just let it idle.