Definitions for "Flue lining"
A smooth hollow tile unit used for the inner lining of masonry chimneys.
a clay, ceramic, or metal conduit installed inside of a chimney
Fire clay or terracotta pipe, round or square, usually made in all ordinary flue sizes and in 2-foot lengths, used for the inner lining of chimneys with the brick or masonry work around the outside. Flue lining in chimneys runs from about a foot below the flue connection to the top of the chimney.