Just keep an eye on that tile. Also as it comes down in temp keep pushing any "loose" areas back in. I just used my hand and a towel. . I wouldn't go above 700*, if the smell is gone the venting is over. But as more of the outer jacket/grout comes to temp (especially towards the bottom) you might get more smell. . Definitely don't sweat it - you can't permanently screw it up even if you think you did. Sent from my XT1585 using Tapatalk