Chimney Air Block

Concrete chimney block is used chimney flue.

Chimney air block.

The center hole allows you to install chimney liner not included the block is uniform in shape color and texture. 1796514 menards sku. The damper inside the chimney just above the firebox or area where a fire is built helps keep cold air birds and animals out when the fireplace is not in use. Made from concrete for strength and durability.

The center hole allows you to install chimney liner not included. 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. 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.

Square chimney block actual size 16 3 4 x 7 5 8 x 16 3 4 model number. Chimney balloon fireplace dampers air seal the fireplace to stops cold drafts bugs birds bats and chimney smells from entering your house. Concrete chimney block measures 16 in. It fits into the chimney just above the firebox and you simply inflate it to block the air passage.

It even works in chimneys that have no damper. The chimney balloon stops this heat loss by acting as a chimney stopper to insulate your fireplace and save you money heat and comfort. And accepts an 8 in.