Chimney words, explained
Plain English for the words you hear on a chimney visit.
A
Ash Pit
A compartment where ash is collected below the firebox.
B
Backdraft
Reverse flow of air down the chimney, potentially causing smoke to enter the home.
C
Chimney Cap
A protective cover on the top of a chimney to keep out rain, debris, and animals.
Chimney Crown
The top element of a chimney, designed to keep water out.
Chimney Flashing
Material used to seal the joint between the chimney and roof.
Chimney Liner
A lining inside the flue, protecting chimney walls from heat and corrosion.
Creosote
A byproduct of burning wood, which can accumulate in the chimney and pose a fire risk.
D
Damper
A movable plate that controls airflow and the release of gases in a chimney.
Draft
The flow of air up the chimney, necessary for efficient fireplace operation.
E
Efflorescence
A white, powdery substance on bricks, indicating water intrusion.
F
Firebox
The part of the fireplace where the fire burns.
Flue
The duct within the chimney that allows smoke and gases to exit the home.
M
Masonry
Work involving brick, stone, and mortar on structures like chimneys.
Mortar
A mixture used to bond bricks together.
R
Repointing
The process of renewing the external part of mortar joints in masonry construction.
S
Spalling
The chipping or flaking of bricks, typically due to moisture.
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