Every chimney should be fitted with a flue liner for best and safest performance. Though chimneys were not originally lined, since the early part of this century, modern fire codes have instructed that all chimneys be lined for safety reasons. Designed to contain the combustion products that your chimney produces by burning fuel (wood, oil, gas, coal, pellets) and safely funnel them outside. Chimney liners may be clay (terra cotta) or metal (stainless steel). In addition to helping move toxic gases out of your home, a chimney liner also protects the walls of your chimney from heat and corrosion. Fireside Chimney Service recommends that you have your chimney professionally inspected to be sure it is equipped with a liner and meets modern safety standards.


A lot of people don’t understand why a chimney needs to be lined, particularly because liners have not always been standard in chimneys. The Chimney Safety Institute of America explains why chimney liners are now necessary  for a safe chimney: “In the 1940s and again in the 1980s, masonry chimneys were tested by the National Bureau of Standards (NBS) for durability due to rising concerns about their performance and safety. The tests revealed that unlined chimneys were so unsafe that researchers characterized building a chimney without a liner as “little less than criminal.””

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