Concrete chimney block measures 16 in.
Chimney air block.
And accepts an 8 in.
Square chimney block actual size 16 3 4 x 7 5 8 x 16 3 4 model number.
The center hole allows you to install chimney liner not included.
Made from concrete for strength and durability.
The lightweight 16 in.
The center hole allows you to install chimney liner not included the block is uniform in shape color and texture.
A chimney balloonis used to close off the flue closed when the unit isn t operating.
You ll have to remove the balloon each time you start a fire but if you use your fireplace sparingly this can be a good option.
It fits into the chimney just above the firebox and you simply inflate it to block the air passage.
Concrete chimney block is used chimney flue.
It even works in chimneys that have no damper.
Chimney balloon fireplace dampers air seal the fireplace to stops cold drafts bugs birds bats and chimney smells from entering your house.
Openings shall not permit the passage of spheres having a diameter greater than 1 2 inch 12 7 mm nor block the passage of spheres having a diameter less than 3 8 inch 9 5 mm.
The chimney balloon is a inflatable blocker that prevents drafts from a chimney caused by a broken warped or missing flue damper.
1796514 menards sku.