The smoke chamber is the area just above the damper that funnels smoke from the firebox into the flue. Creosote collects there, and quick cleanings often skip it, which is why a thorough sweep cleans the smoke chamber too.
Where it is
The smoke chamber sits between the firebox damper and the start of the flue, with sloped walls that channel smoke upward into the chimney.
Why it matters
Its shape and location make it a place where creosote and soot accumulate. Buildup here restricts draft and adds fuel for a chimney fire.
Why thorough cleaning includes it
A rushed sweep that only brushes the visible flue leaves the smoke chamber dirty. Heritage cleans the firebox, smoke chamber, and full flue on every sweep.
Frequently Asked Questions
Is the smoke chamber the same as the flue?
No, it sits below the flue, above the damper, and is often missed.
Why does it collect creosote?
Its sloped shape and position trap soot and tar.
Does a standard sweep clean it?
A thorough one does; a rushed one may skip it.
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