With the big snow coming, its a good idea to go outside later today and make sure your high-efficiency heating and water-heater exhausts are not covered in snow.
Our modern equipment often vents through the side of the house, not up a tall chimney, and these vents typically have an exhaust and a fresh air intake. It only takes a few minutes to keep them clear of snow, which can cause problems and a safety hazard.
Here’s a good article with more information:
