Since I do not have any anti seize I decided to wait with pulling the pipe. I reloaded the stove at noon today and it seems all good. Cat glowing, next to nothing smoke. Next time the stove is cold I will do all three. Pull pipe, put anti seize on linkage and pull and brush cat.More than likely you are burning creosote on top of the dome, behind the combustor. It will burn off, but depending upon amount, could take a while.