I took out the ceramic brick today to vacuum all the ash trapped behind there. No not because I wanted to, but because that is where the air intake is on that stove and it just wasn't burning the same towards the end of the last season. Good news is I got the ash out, but something was broken. Right behind the combustion brick, in the opening of the combustor, part of the combustor itself, crumbled. it was cracked and loose, and when I touched it, it crumbled. I attached some pictures to show. Will this mess up the burn? I hope it's still under warranty.