Do These Five Things Before Sub-Zero Weather

1. Change your furnace filter. Even a slightly dirty filter can affect how your furnace operates in extreme weather.
2. Set your thermostat to HOLD. If you have a automatic setback thermostat set it to hold so that the temperature won't turn down.
3. Open your faucets so that there is a small trickle of water. This can prevent frozen pipes.
4. Turn off the water to any outdoor faucets
5. Open cabinet doors under sinks that are located on outside walls.