The temperature of the hotspot is at 88F, I checked using the Etekcity infrared thermometer. The smell has faded away and it is mere impossible to smell it anymore. Thank you all for your help! I do also have one more question. Should I cover the bottom of the UTH with foil tape? I've seen a few reptile youtuber's heat mats covered with foil tape. Is it safe and would it be better?