We just came back from a trip. Cold weather camping at Hungry mother campground VA. We woke up to 26 degrees and snowing, the night dropped down to somewhere in the low 20's. We did not hook up to water because we figured the hose would freeze. We did fill our water tank. and ran water. Since we had electric we ran an electric heater and set the propane furnace to 65. When we left we winterized the water system of the camper since we would be driving in this weather.