As your furnace ages, it runs the risk of developing cracks in the heat exchanger which increases the risk of a C0 (carbon monoxide) leak. If present, undetected carbon monoxide could leak into your home.
Signs of a carbon monoxide leak may include:
a burning feeling in nose or eyes
Be sure to have your furnace inspected regularly and check the batteries in your carbon monoxide detector! For more information, visit https://www.carbonmonoxidealberta.ca/.