Hi guys, Just had my chimney sweeped, and when the guy was vacuuming out the stove he removed the firebrick baffle from my Regency and they were both in two pieces. He mentioned that he sees that a lot and that the bricks are not crumbling yet and are only 3 years old and that I should get at least another 2-3 years out of it before I have to replace them. He has been a good chimney sweep for the last three years, but I somehow doubt this logic. The baffles are cracked in half, and they do fit snuggley together without any noticeable gaps. Should I replace them anyways, or is this guy correct? They seem pretty expensive to buy and difficult to find. Can baffles be made from regular firebrick when I need to replace them?