Concrete chimney blocks are 24 inches square with a hole at the center that is sized to fit a section of vertical ceramic flue tile.
Cinder block chimney.
And accepts an 8 in.
The center hole allows you to install chimney liner not included.
A chimney made of concrete blocks and ceramic flue tiles uses a special type of block that is sized and shaped differently than the 8 by 8 by 16 inch blocks found in concrete block walls.
Made from concrete for strength and durability.
Concrete block or cinder block chimney cracks damage.
The lightweight 16 in.
When building a chimney concrete blocks are probably the least favorable type of masonry to use.
These articles on chimneys and chimney safety provide detailed suggestions describing how to perform a thorough visual inspection of chimneys for safety and other defects.
Concrete chimney block measures 16 in.
Because they are made from poured concrete instead of natural stone or a kiln fired material concrete blocks have almost no tolerance to extreme heat.
This article describes cracks in masonry block or concrete block chimneys and suggests possible causes and crack severity.
As a result a concrete block chimney is subject to cracking after only a few uses.
The center hole allows you to install chimney liner not included the block is uniform in shape color and texture.
Concrete chimney block is used chimney flue.