Good luck on your camping trip. I just got my electric bill 328 dollars so I hope it does warm up soon. My electric heaters have just been running crazy to keep up even with my kero stove and fireplace. I think I will go under the crawlspace and look for hotwater leaks in the morning. My bill was only 189 last month. I will install a woodstove in the back of the house by next winter.
I think downstairs would be the best setup too. Darn appliances always seem to quit at the most inopportune moments. Probably best you did not go camping it's hard to enjoy if your freezing or stuck in the camper.