Like others have mentioned the challenge will be staying warm and charged, but after many nights of winter camping dry up here in the PNW its doable. With hookups it's no problem at all but you mentioned no hookups. Camping "dry" in the cold uses lots of propane for the furnace and the furnace also uses lots of battery power. That can be managed by running the generator, but many locations don't allow generator use and the noise can be annoying to you and others. With the generator running you can also use a portable electric heater for warmth, which saves propane. Figure about 1/2 gallon of gas per hour of generator use, and the generator will shut down when you have 1/4 tank of fuel left to keep you from stranding yourself. Clear as mud?