I am going through all the options on which smoker to buy/build. I was at Menards last night looking for 22" grates for a UDS build (still unsure about this as I'm having trouble getting a barrel) and I saw the Char-Griller Smokin Pro for like $180 with the firebox. I am wondering how this smoker does in 20-40 degree weather since I will be smoking in this temp range a couple months out of the year. I am also looking at a MES which is insulated and helps keep temps up in the cold. Ideally I would like the UDS cause I hear it can hold 225 @ 20 degrees for 16 hours or so. If I went with the Char-Griller I plan on modding it to reverse flow.