I'll have to get more details but basically I bought a convection fan, the fan blade, etc. and I drilled a hole into the back of my MES to install it.
I placed it according to the way it is "generally" placed in ovens as well as other convection fan smoker mods.
It is in the back above the heating element and below the 1st rack from the bottom.
I believe it helps keep temps more even within the smoker and I'm sure it makes for faster cooking times and better air and smoke circulation. The air and smoke circulation helps some with cold smokes but my cold smoker assist gadget really solves strong smoke flavors caused by stale smoke not circulating and exiting the smoker.
I can provide more info just let me know what details you are looking for :)
