Chimney words, explained
Plain English for the words you hear on a chimney visit.
B
Back Puffing
When smoke flows back into the house instead of up the chimney.
C
Chimney Cap
A protective cover at the top of the chimney that keeps out weather and animals.
Chimney Crown
The top surface of the chimney that prevents water from entering the chimney structure.
Chimney Flashing
Metal installed at the roofline that seals the space between the chimney and the roof.
Chimney Stack
The portion of the chimney above the roofline.
Creosote
A flammable tar-like substance that builds up in chimneys and needs regular removal.
D
Damper
A device in a chimney that controls airflow and smoke ventilation.
Drafting
The movement of air up the chimney to draw smoke and gases outside.
F
Firebox
The part of a fireplace where the fire is built.
Flue
The duct or opening in a chimney for conveying exhaust gases from a fireplace, furnace, or boiler.
L
Liner
A protective layer in a chimney that improves safety and efficiency.
M
Masonry
Built from individual units of brick, stone, or concrete, held together by mortar.
R
Repointing
Repairing masonry joints in a structure by filling in gaps and cracks.
S
Smoke Shelf
Located behind the damper, it prevents downdrafts and helps airflow.
Spalling
When the surface of brick or stone breaks off due to weather or water damage.
Stovepipe
The pipe connecting a stove to a chimney flue.
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