Humber/Ontario Real Estate Course 4 Exam Practice

What is the purpose of the flue in a wood-burning fireplace?

1. Located below the smoke chamber for heat control.

2. Smoke shelf positioned below the mantel.

3. Located above the firebox and smoke shelf and discharges smoke.

4. Control damper below the firebox for air regulation.

5. Heat distribution mechanism for even heating.

6. Protective screen to prevent sparks.

The correct answer is: Located above the firebox and smoke shelf and discharges smoke.

The purpose of the flue in a wood-burning fireplace is fundamentally to allow the smoke and gases produced by combustion to exit the home safely. By being positioned above the firebox and smoke shelf, the flue plays a critical role in channeling the smoke upwards and out of the structure, preventing smoke from entering living spaces and ensuring that the fireplace functions properly. The flue maintains the necessary draft that facilitates efficient burning by allowing fresh air to flow into the firebox while expelling the byproducts of combustion. This is important for both safety and comfort, as it helps to minimize the risk of backdrafts or improper venting that could lead to hazardous situations.