gerard wrote:Also a quick fix is to get some fireplace mortar that comes in tube and can be applied with a calking gun. Shoot it in the joints and put the brick back together and let it cure with a low fire. It's a good fix if getting the new bricks in is at all difficult. holds up pretty well too.
Yep Fireplace mortor does it. I used this method before I stocked up on extra bricks. They are cheap, locally 5 for $10. I cracked alot of them in my FireplaceXtrordinaire, but just on the left side of the firebox. I figured out why, last year; I throw the wood in from the right door, and sometimes the logs hit the left side firebricks. Ooops!