Cracked Flue Liner in Chimney not Uncommon

Over time, cracks can develop in clay liners, so here's a tip: Get a metal one.

A cracked flue liner in the chimney is not an unusual problem. That's what our home inspector found in Gainesville, Fla. Most masonry fireplaces are built with clay liners. Over time, intense heat, weather conditions and general wear and tear can result in a cracked liner. As a result, harmful gasses and even fire can seep into your house.

If your flue liner is cracked, this is the solution: a stainless steel insert. It's placed down the entire length of the flue, sealing the old liner. It's a job that can be done by a professional in just a few hours. But how do you know if you need one of these inserts? Here are a some tips:

  • Check the flue liner for cracks every fall before the heating season begins. Use a flashlight and safety glasses to see as far up the flue as possible.
  • Hire a professional chimney sweep to complete the check for cracks in places that are hard to see.
  • Don't use your fireplace with a cracked liner. Have the liner replaced as soon as possible.


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