In a gas furnace, what does the draft diverter do?

The draft diverter plays a crucial role in a gas furnace by allowing combustion gases to escape from the device safely. Its primary function is to redirect the exhaust gases from the furnace to the flue or chimney, which is essential for maintaining proper ventilation. This helps to ensure that harmful gases, such as carbon monoxide, are not released into the living spaces of a home, thereby protecting the occupants from potential health hazards.

Moreover, the draft diverter helps maintain the necessary draft conditions, which are vital for effective combustion within the furnace. By ensuring that combustion gases are expelled efficiently, the draft diverter contributes to the overall safety and functionality of the heating system.

While other components may play roles in regulating airflow, preventing overheating, or maintaining fuel efficiency, the specific responsibility of the draft diverter is primarily to facilitate the safe escape of combustion gases.