Chimney words, explained
Plain English for the words you hear on a chimney visit.
B
Backdraft
Reverse airflow down the chimney, pushing smoke into the home.
C
Chimney Cap
A device fitted to the top of a chimney to prevent rain, debris, and animals from entering.
Chimney Liner
Protective lining inside the chimney that prevents overheating and helps improve efficiency.
Chimney Stack
The section of the chimney above the roofline.
Creosote
A flammable substance that accumulates inside the chimney from burning wood.
Crown
The top part of a masonry chimney that prevents water from entering the chimney interior.
D
Damper
A movable plate in the flue that controls airflow and prevents heat loss.
Draft
The flow of air through the chimney, which helps pull smoke and gases out.
F
Firebox
The area within the fireplace where the fire is built.
Flashing
Material used to prevent water penetration at the intersection of the chimney and roof.
Flue
The duct or vent that allows exhaust gases to escape the house.
M
Masonry
Construction of structures from individual units like bricks or stones, often used for chimneys.
R
Repointing
Repairing the mortar between bricks to maintain the structure of the chimney.
S
Smoke Chamber
The area above the firebox that funnels smoke into the flue.
Spark Arrestor
A device that prevents sparks and embers from escaping the chimney.
V
Vent
An opening that allows air, gas, or liquid to flow in or out of a space.
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