Firebrick... more like firegravel.

[Microduck17]

The beast was out cold when I got home. So I took the opportunity to completely clean it out. I knew the firebrick was rough goig into this season but It has seriously degraded since last inspected it a few months ago. Looks like I'm going to be replacing firebrick next weekend or whenever I get the time. I wonder how old this thing is.

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[warno]

If they aren't piecing out when raking coals or while burning then I wouldn't bother with them. They look to be in decent shape and, other than cracking, in place.