Last Winter I smoked with the MES outside in the freezing weather and snow. No more. Now smoking from my Man Cave. I wanted to keep this as simple as possible. Top Cap 3" Galv. Pipe 3" x 5' Flexable Aluminum Duct 3" Adjustable elbow 3" Purists might say I should have used double wall pipe, but, top of Flexable Aluminum Duct is barely warm to the touch with MES on 225F. Attachment 22838 The 3" elbow has a tab cut to allow for the MES vent handle. The vent stays open all the time. Elbow is a nice press fit into vent opening. Easily removed. Attachment 22839 Works like a charm. The maiden voyage (smoke) turned out same as if the MES was outside. TBS from the smoke stack. Attachment 22840 One disadvantage I had not considered..... I have to go outside to see if it's still smoking or do I need to add chips. On the other hand that may be the perfect excuse to buy a new 40" MES with glass door. Attachment 22842 Actually, from experience I could add chips/chunks about every 30 minutes and be close.