Reply To: Biyur Chometz in the self-cleaning oven

klugeryid – yes that is the custom, but one may use the oven and even derive benefit from it, as clearly stated:

445:11 “When destroying the Chametz prior to the 6th hour, [being] that the Chametz is still permitted in benefit, one does not need to make a separate flame [from that of his cooking oven] for the Chametz, and he rather may burn it in his cooking oven, and use its heat to cook with, as well as he may get all other types of benefit from it. Furthermore, even after the 6th hour one may continue to benefit from the heat derived from the Chametz if the Chametz has already been burned, before the 6th hour, to the state of being inedible even to a dog. Nevertheless, the custom is to burn it separately [from ones cooking oven, and not benefit from it,] even when burning it prior to the 6th hour.”