Last Febraury we spent a Month in PA. It got down into the low teens, and we had 15" of snow! First it did not snow constantly, so the porch for me is questionable! Second, everything did not freeze, all the tanks have heaters, so that is not a problem. You will need to get a special hose equipped with a heater so that does not freeze! Otherwise you should be fine. The furnace uses a lot of Propane, we have two tanks, 30 lbs. and they lasted 5 days at a time, reverse cycle heat is worthless if under 40. Some quartz heaters come in handy to keep the chill off! Enjoy your stay.