Where to mount fan?

[zgardener]

I got a small 5 cubic foot chest freezer that I will be using as a fermentation chamber. I want to install one or two computer fans to keep the temperatures somewhat even throughout.
Where is the best place to mount these fans to ensure best circulation? one fermenter will have to set on top of the compressor hump, the other will sit lower.

 

[Bitterbrush]

I mounted a 12v computer fan on the right side of my Keezer and Fermentor. I used a couple of angle brackets to mount the fans, they work great at keeping my temperatures even.

Here's the fan on the right side of my Keezer.

And in the Fermentor.

 

[Catt22]

Mounted mine to the lid blowing downward with the controller probe in the air stream.