Furnace vent maintenance during the winter months, especially after heavy snow fall or during extreme cold snaps it is important to examine the intake and exhaust pipes for your furnace and hot water tank for ice build up and snow blockages. Make sure you clear the snow around and below your furnace vent and remove any ice build up to prevent obstructions. A quick simple inspection a few times a week can prevent breakdowns and save you on costly repairs and ensure your furnace operates safely and efficiently.