Where is the smoke shelf located in relation to the damper?

The smoke shelf is designed to optimize the performance of a chimney system by aiding in the proper flow of smoke and gases. It is specifically located behind the damper, which is the control mechanism for airflow through the chimney.

When a fire is burning, the damper regulates the passage of smoke and gases up the flue. The smoke shelf catches the smoke and allows it to rise into the flue, creating a more efficient draft while preventing backdrafts and downdrafts. Its placement is essential for effective chimney operation because it serves as a barrier that helps ensure that smoke moves upward and does not escape back into the living space.

Understanding this relationship is crucial for home inspectors, as they need to assess chimney functionality and safety accurately. Recognizing the smoke shelf's position helps identify potential issues with airflow and efficiency in chimney systems.