Chimney words, explained
Plain English for the words you hear on a chimney visit.
C
Cap Damper
A type of chimney cap that includes a damper to improve energy efficiency.
Chimney Cap
A cover on top of the chimney to prevent rain, debris, and animals from entering.
Chimney Crown
The slab that covers the top of the chimney to protect against weather damage.
Chimney Liner
A protective lining inside the chimney that helps ventilate smoke and gases.
Creosote
A flammable substance that builds up in chimney liners as wood burns.
D
Damper
A movable plate in the chimney that regulates airflow and heat.
E
Efflorescence
A white staining caused by salt deposits, indicating moisture issues.
F
Firebox
The part of the fireplace where the fire burns.
Flashings
Metal sheets that seal the joints between the chimney and roof to prevent leaks.
Flue
The passageway in the chimney through which smoke and gases exit the fireplace.
M
Masonry
The brick, stone, or block construction of a chimney.
R
Repointing
The process of replacing old mortar with new mortar in the chimney's masonry joints.
S
Smoke Chamber
The area above the fireplace where smoke mixes before venting outside.
Soot
A black powdery substance consisting mainly of carbon, produced by incomplete combustion.
Spalling
The flaking or peeling of brick surfaces, often due to moisture.
W
Waterproofing
The application of a sealant to prevent water penetration into the chimney masonry.
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