Originally Posted by tmarquis
Yes I am plugged in and I do have both the furnace and a portable heater running. (I only failed at that one day.) I do have all the cabinets open. I'm also worried about the water in the battery? does having the trailer plugged in keep that from freezing? If i can keep the interior at 40 and the fresh and hot water tanks drained. I should not worry about pinking the lines. (I really want to avoid that stuff in the lines. I still drink from the tap it doesn't seem like the pink stuff would rinse well)
The oil filled radiator heaters are fairly inexpensive, and much safer than the little blower types. They also seem to be a bit more efficient.
I wouldn't worry about the water in your battery. Do you plug in your car at night? Rather than drink from the tap, drain your lines and for drinking water take one of those cheap water jugs with you. Think of it as a metal tent with heat, lights, and a camp stove. Forget about using the plumbing during the winter.