We are in NC and will be leaving for FL sometime around Christmas. Our forecast is for some mid 20 degree weather next week. If I run the furnace during these cold days will that eliminate my freeze ...
Mid 20s is the high or the low? Most RVs are good to 25 while in use but if it is going to drop to 20 or 15 or lower overnight you really need to check what is vulnerable to freezing. I would tend to add some heat to critical areas and see how it goes.
And yes I have had my fair weather trailer down to about -10 with some preparation.