I have to bring some pulled pork to my relatives tomorrow for our contribution to the annual Christmas meal. It's currently 7 above with the temp to drop to -3 tonight. I put it in a 10lb pork butt at 9:00pm and according to my ET-732 the smoker is holding between 221 and 234. It's set for 230. I have an AMNPS that's putting out good, light smoke. I turned on the smoker at 4:00pm and ran it at 275 for five hours to get the cabinet heated well and it's covered with a blanket. So far. I'm pretty impressed with the cold weather performance of the MES 40. I guess we'll have a better idea tomorrow morning how this will turn out but so far so good. :grilling_smilie: