Take time for cleaning and maintenance. According to the National Fire Protection Association, it is crucial to inspect chimneys, fireplaces, and vents at least once a year and to follow up with any needed cleaning, maintenance or repairs. Have your furnace checked, and change your filters.
If you aren’t using your fireplace in the winter, a chimney pillow or chimney balloon can help avoid heat loss while still maintaining proper ventilation. Many options are available. Be sure to choose one that is acid and heat resistant. Chimney pillows range from $40 to $70 and can install in just a few minutes. Additionally, they may be deflated and reused. The tight seal created by the chimney balloon not only keeps out the cold but can also prevent birds, bugs, and bats from using your chimney to enter your home.