I smoked a turkey thanksgiving morning at below freezing temps and it didn't seem to make any difference at all on the UDS. The heat is contained inside the UDS and you really aren't counting on the metal in the barrel heating up to help hold temps. My barrel is rarely too hot to touch while I'm cooking unless I have the lid off too long and let my temps get out of control.
How y'all are? I'm glad you got to see me I guarontee Justin Wilson 4/24/1914 - 09/05/2001
CAJUN QUE KREWE
KCBS member & CBJ#24398
Twin CoonAss Ugly Drum Smokers
Brinkman Smoke King Deluxe
Brinkman Gourmet ECB with super chicken mods
Weber OTS kettle