We also set out thermostat to 10c. In addition, we empty the hot water heater, turn off the well pump and drain, and then blow out the water lines with an air compressor. Our lines would freeze here in Shelburne Ontario. We unplug all appliances, empty the fridge and freezer and leave the doors open. You never know when and how long the power could be off in a storm. We also have a neighbor check the house couple times a week.We have no, to the house mail delivery, but another neighbor collects our mail from the super boxes and sends me what I need once a month.