This is right after I rebuilt it. It took me a good while to get it really cleaned up. Not a real fun job but feels good seeing (and feeling) the results.
From what I have learned by reading on this forum it is believed that ash buildup behind the fireback is what typically causes the fireback to crack. Mine did have buildup behind the fireback when I took it apart. It is hard to clean back behind it all the way down to the bottom.
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