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 ...
I think I would winterize it even for a few weeks. You know what Weather is predicted for next week, but what about after that? It would be cheap insurance and the alternative, waiting to have damaged plumbing repaired, would not be fun. I would use the blow the lines method.