 |  | This is a picture of a vertical crack located inside the chimney. Vertical cracks are typically caused by heat related to a chimney fire. The solution for this problem is proper cleaning and the installation of a chimney liner. | | |
 | | This is a closeup of another vertical crack as described in the previous picture. Cracks of this nature can cause carbon monoxide poisoning as well as soot infiltration. | | |
 | | This picture shows cracks and deterioration in the thimble area. | | |
 | | This is an example of a broken flue tile at the thimble area. The thimble is the connector between your furnace or woodstove to the chimney. | | |
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