Good question. I'm wondering about the same thing. As a weekend camper I've given some serious though to getting out this up coming weekend. It would be a good shake down trip. But, here in SW MN the temps could still get bad yet at this time of year. And they are talking low temps of 25 degrees next week. I think I will probably risk it and leave a electric heater turned on inside the camper on those cold nights. I will also put it inside the shed during those times. If I do this and fire up the water heater on those cold nights I'm hoping for the best.