We came back from FL on the 1st of Jan. last year and stopped for an overnight in GA. Down to 28 that night. Our trailer is a '17 Laredo and has the cold weather package insulation. I used the electric fireplace AND the furnace set at 65 for backup and we were comfortable with that. Dealing with water in those temps is another challenge though. Campground had their water shut off but we had 1/2 tank of fresh water and had not emptied the holding tanks yet and did that in the morning with no issue. Nothing frozen. I am not a fan of cold weather camping.