trying something new....heading to Florida in winter

We stay in Walmart lots otw down and back, 1 night each way. I've started the furnace a couple hours before we stop and it helped a little but it was pretty chilly inside still. Bring some extra blankets, maybe sleeping bags and I think you'll be fine. I now have a 5th wheel with a generator so we use electric space heaters along with the furnace and it warms up nicely. Have a good trip, I wish we were going south this winter.