Flue lining

Flue lining

Fire clay or terra-cotta pipe, either round or square, usually in 2-foot lengths of varying size, used for the inner lining of chimneys.

flue lining, chimney lining

flue lining In a chimney flue, a lining consisting of special heat-resistant firebrick or other fireclay units, heat-resistant glass units, or special concrete block; used to prevent fire, smoke, and gases in the flue from spreading to surroundings.