What is the function of a smoke chamber?

The function of a smoke chamber is to transition smoke from the fireplace to the flue. This space plays a critical role in the chimney system by serving as a conduit where the smoke accumulates after it exits the firebox. From the smoke chamber, the smoke is directed upwards into the flue, which ultimately channels the smoke and gases safely out of the home. Proper design and clearance in the smoke chamber are essential for efficient draft and to ensure that smoke moves smoothly away from the living area without leakage.

The other options do not relate to the intended function of the smoke chamber—storing smoke or extinguishing a fire is outside its operational purpose, and preventing smoke from escaping contradicts its role in directing smoke upward through the flue to ensure proper venting.