Chimney words, explained
Plain English for the words you hear on a chimney visit.
C
Chimney Cap
A protective covering on top of the chimney that keeps out rain, debris, and animals.
Chimney Crown
The top element of the chimney, covering and sealing the top of the chimney from the flue liner to the edge.
Chimney Liner
A lining inside the chimney flue that protects the chimney walls and helps improve safety.
Creosote
A flammable tar-like substance that builds up in chimneys from burning wood.
D
Damper
A movable plate in the chimney that regulates the airflow and helps control the draft.
Draft
The flow of air up the chimney to allow smoke to exit properly.
E
Efflorescence
White staining on brickwork caused by moisture drawing salt to the surface.
F
Firebox
The section of the fireplace where the fire burns.
Flue
The duct or passageway inside a chimney that allows smoke to exit your home.
M
Masonry
The stone, brick, or block construction of a chimney.
R
Repointing
The process of renewing the pointing, which is the external part of mortar on masonry joints.
S
Smoke Chamber
The area above the fireplace that funnels smoke into the flue.
Soot
A black powdery substance consisting of carbon, produced by incomplete combustion of wood.
Spark Arrestor
A device fitted to prevent sparks from escaping and igniting the roof or nearby combustibles.
T
Tuckpointing
The process of finishing masonry joints with a narrow ridge of putty or mortar contrasted in color with the brick.
W
Waterproofing
Applying a protective layer to prevent water penetration and damage to the chimney structure.
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