Originally Posted by kkdesigns
I have a way to hook up power to the trailer, so my temporary fix was to start the furnace and leave it running on about 45 to offset the fridgid temps which were mostly night time drops below freezing. I know this is not the proper way, but do you knowledgeable people think I should be OK? The furnace does warm the belly with the holding tanks and lines so I hoping my attempts worked. It's warming this weekend, so I'm going to pull it out and try to properly blow out the lines.
I just came home from almost 2 weeks of winter camping. For the first stop, at Vidalia, LA, the daytime highs were in the high 20s and overnight lows were in the teens.
What you propose to do is not much different than camping in your Airstream in below-freezing-but-above-zero temperatures, and it's eminently doable.
Your water lines are more at risk than your tanks, and they're located close to the trailer's skin behind cabinets. You want the heat to penetrate the cabinets. Leaving the cabinet doors and drawers open would help in this regard, as well as leaving the bathroom and shower doors open.