What does the draft diverter do in the case of a downdraft in the flue pipe?

A draft diverter is a device that helps manage airflow in a flue pipe, particularly in the event of a downdraft. When downdraft occurs, it prevents combustion gases from flowing back into the living space by redirecting them safely outside. The diverter helps to maintain proper draft conditions by allowing fresh air to enter, ensuring efficient operation of the appliance and reducing the risk of dangerous backdrafts. Overall, it enhances safety and efficiency in venting systems.