Hello all .....realizing that my Masterbuilt ( Centro ) smoker won't be able to cold smoke ( I really want to do side bacon ).....here is what I came up with today.....I used the box it came in and a few odds n ends to whip this up today as I made jerky......running the unit at 185 with an outside temp of about 50 ,gives me a temp right around 80 to 85 in the top ....so should do the trick for next Sundays side bacon ! p.s.the pipe going from the bottom to the top unit is a 3 inch exhaust pipe coupling,and inside the box there is a piece of hardwood dowel to hang the bacon hooks from .