valhalla360 wrote:
If you are boondocking, likely nothing that will be simpler and cheaper than just fixing the propane tank problem.
If you are in a formal campground with power and it's not really cold, a space heater carefully set up, it an option.
Even if it is really cold if you've got a 50A hookup then electric is fine. I've been using 3x '1500'W heaters (really just over 1kw each) to heat my 34' trailer this winter, barely used any propane at all even though we had the third longest string of snow on the ground in recorded history (31 days) and temps as low as -5F. I did have to wire an extra outlet to run the 3rd heater as all of the non-dedicated outlets were only on 2 strings in my trailer.