Chimney Liners


What is a liner?

A flue lining in a masonry chimney is defined as "A clay, ceramic, or metal conduit installed inside of a chimney, intended to contain the combustion products, direct them to the outside atmosphere, and protect the chimney walls from heat and corrosion."

Although building codes vary from one state or locality to another, the installation of flue lining has been recommended since the early part of this century, and indeed most fire codes mandate liners.

In 1940's and again in the 1980's, masonry chimneys were tested by The National Bureau of Standards for durability due to rising concerns about there performance and safety. The test reviled that unlined chimneys were so unsafe that researchers characterized building a chimney without a liner as"little less than criminal."

Liners in Chimneys serve three functions:

Types Of Chimney Liners

Chimney Liners come in three main types:
Clay Tiles, Metal, and Cast-in-place


Considering the dangers of old unlined or damaged chimneys, and the many cost affective options now available to make these chimneys safe components of the home heating system, we suggest you have London Chimney Service Chimney professionals inspect it to be sure it meets modern safety standards.

** Source Chimney Safety Institute of America (CSIA)


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