Bricks, Masonry, Asphalt and Concrete - Firebox Brick
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PaigeFL
02-21-02, 02:36 PM
We are renovating a 1926 bungalow. There is a firebox built out of 2 3/8" brick within the original brick fireplace. Perhaps this was added to convert an existing coal burning fireplace to wood-burning? The current firebox depth is only 12 inches. We have heard there is a firebrick which meets code and is thinner in depth. We are hoping to rebuild the firebox to gain some depth and make it work more efficiently. Any thoughts? Does this thinner brick exist?
BRICK4U
02-21-02, 08:46 PM
Full thickness firebrick are typically 2-1/4"x 4"x 9".
Depending on your local supplier, you might be able to find "splits" that are approx. 1-1/2"x 4"x 9".
Keep in mind that firebrick are solid, face brick are typically cored. It is not a good idea to use cored brick in a firebox because the cavities contain moisture and air which can expand... causing cracking. The use of firebrick, refractory mortar and smaller (1/8" to 1/4") joints will provide many years of performance with no worries.
Do you have an outside air intake? You may consider installing a "retrofit kit." Many local codes now require outside air intake for combustion. Regardless, a outside air kit will make your rebuilt firebox perform better.
Good luck.
www.southsidebuilders.com
Depending on your local supplier, you might be able to find "splits" that are approx. 1-1/2"x 4"x 9".
Keep in mind that firebrick are solid, face brick are typically cored. It is not a good idea to use cored brick in a firebox because the cavities contain moisture and air which can expand... causing cracking. The use of firebrick, refractory mortar and smaller (1/8" to 1/4") joints will provide many years of performance with no worries.
Do you have an outside air intake? You may consider installing a "retrofit kit." Many local codes now require outside air intake for combustion. Regardless, a outside air kit will make your rebuilt firebox perform better.
Good luck.
www.southsidebuilders.com