wintersun wrote:
Remember that the cubic feet of air that needs to be heated is extremely small so a high output heater is not needed. A 5 gallon tank of propane should have for at least 2 weeks of cooking and heating and to power the fridge.
There are two drawbacks to popups, the amount of storage space and the size of the fridge and holding tanks. If you can live with those aspects then winter camping is not going to be a problem.
When I had an Outfitter with one 20lb tank I never had an issue running out of Lp. But I did have a very tiny 7.5 cu ft (sarcasm) compressor refrigerator that didn't use propane so that helped.
I can't speak for all pop-ups and I'm not sure which brand/model being referred to is but the Outfitter Apex 8 had more storage than any hardside of comparable size I've ever seen. In fact it easily has as much, maybe more storage than my bigger hardside I have now.
The pop-up also had a 40+ water tank with 16 gallon black/grey tank. Comparable or bigger than name brand hardside campers in it's size group.