Help with a secondary fermenting chamber

[geologyguy]

So I have a 4.6 cubic foot mini frig that I use for my Kegs/ fermenting chamber.

I am looking at making a 2nd chamber attached to it made out of wood and insulation. I want to be able to have kegs in the frig to use on my tap and then space to ferment at the same time. Do you think I will be able to have enough to ferment and keep kegs cold? I was going to pipe air with a fan on top and the an pice to return air back at the bottom. I attached a picture



View attachment ImageUploadedByHome Brew1423025707.112484.jpg

 

[Ski12568]

I started building something similar, got the idea from here:

http://www.wortomatic.com/articles/The-Mother-of-All-Fermentation-Chillers

I have the collar built, but the project is on hold. I don't think you will have a problem with it.