Chimney words, explained
Plain English for the words you hear on a chimney visit.
B
Backdraft
Reverse airflow from a fireplace or stove causing smoke to enter the home.
C
Chimney Cap
A protective covering on top of the chimney that keeps debris and water out.
Chimney Crown
The top surface of the chimney designed to shed water and protect the brickwork.
Creosote
A flammable tar-like substance formed from burning wood, requiring regular removal.
D
Damper
A device that controls the amount of air and smoke that can exit through the chimney.
Draft
The flow of air that allows smoke and gases to exit the fireplace via the chimney.
F
Firebox
The part of a fireplace where the fire is built, typically lined with firebrick.
Flue
The duct or opening in a chimney for conveying exhaust gases from a fireplace to the outside.
L
Lintel
A horizontal support across the top of a fireplace opening, providing structural stability.
M
Masonry
The stone, brick, or block construction of a chimney or fireplace.
R
Relining
The process of installing a new liner in the chimney to improve safety and efficiency.
Repointing
Repairing the joints of masonry by replacing old mortar with new.
S
Smoke Chamber
The area above the fireplace where smoke gathers before exiting through the flue.
Soot
A black powdery or flaky substance produced by the incomplete burning of wood.
T
Termination Cap
A cap installed at the end of the flue to improve draft and prevent rain from entering.
W
Waterproofing
The application of a water-resistant treatment to protect the chimney from moisture.
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