Humber/Ontario Real Estate Course 4 Exam Practice

Which statement about fireplace chimneys is correct?

1. A closed control damper in a fireplace prevents heat from escaping through the chimney.

2. A chimney cap is not required with a chimney that has been constructed with bricks and mortar.

3. All fireplaces require a vertical chimney that extends above the roof.

4. Two fireplaces can share the same flue.

5. Electric fireplaces do not require chimneys.

6. Wood-burning stoves cannot share chimney flues with fireplaces.

The correct answer is: A closed control damper in a fireplace prevents heat from escaping through the chimney.

In this question, the correct statement about fireplace chimneys is that a closed control damper in a fireplace prevents heat from escaping through the chimney. This is because a closed control damper acts as a barrier that can be closed when the fireplace is not in use, preventing warm indoor air from escaping up the chimney and cold outdoor air from coming down into the house. Regarding the other options: - Option B is incorrect because a chimney cap is important for various reasons, including preventing debris, animals, and water from entering the chimney, regardless of the construction material of the chimney. - Option C is incorrect because while many fireplaces do have vertical chimneys that extend above the roof, there are also alternatives such as direct-vent gas fireplaces that do not require a traditional chimney extending above the roof. - Option D is incorrect because two fireplaces can indeed share the same flue, as long as certain conditions are met to ensure safe and proper venting for both units. - Option E is incorrect as electric fireplaces do not produce combustion gases and, therefore, do not require a chimney for venting. - Option F is incorrect because it is possible for wood-burning stoves to share chimney flues with fireplaces, but this needs to