Winter RV camping

I wish I had found this before our involuntary cold weather camping. I didnt know about the effects of the cold on refrigerators. And I hope ours is ok. As I said in the other thread, we coasted along in the 20s for awhile, but our pump feed line froze up on the second night of about 8 degrees. We had a full fresh water tank, with the tank heaters running. But I believe where I screwed up was running a space heater upstairs. I believe that it made the furnace cycle less, allowing the cold to creep into our belly. Since ours bleeds furnace heat between the floor and belly cover. I hope the fridge survived and that we never have to go that low again.