[lostshakerofsalt]

It is not really freezing but the propane cannot vaporize quickly enough at cold temperatures to run the generator. Basic physics shows that when a gas goes from a higher pressure to a lower pressure it cools. That is why you see the frost line or condensation line when using propane, especially at the rate the generator uses propane.

We discovered the same issue when we dry camped this Winter in AZ. Temps got down well below freezing for several nights and days were still below freezing. I know, best to move to a warmer climate but we were visiting friends that were also dry camping. Anyway, the generator would run and use only about 70% of the propane tank before either shutting down or switching over. I looked for tank heater blankets and found some on Amazon but they were pricey. I have thought about getting a couple of rolls of hose heater tape to wrap around the propane tanks since the only time it really was a problem was when the generator was running.