Well few years ago bought some Firetek brick of Ebay, within a few weeks cracks formed around the chute hole, got a replacement center panel from the seller, now the brick is all broken in peices around the hole, junk, bought another called ultra brick, wont fit right, too many air leaks under and around the chute, thats going back, found my original brick 15+ yrs old, got some cement and sealed around the chute hole due to being worn and larger, fit's like a glove, can I still buy the original cerra brick?