I am planning on building a fermentation chamber this weekend kind of based on the "son of fermentation" chamber. The one thing I am not wanting to do is swap out water bottles. I was thinking of buying a small freezer, something like this. I was then thinking put a bucket of glycol in the freezer, then running a line in the chamber to a small radiator, something like on a computer water cooling system. Then put a fan on the radiator to cool the chamber, oh and also a pump to recirculate the glycol. But I am starting to wonder if this setup will cool the chamber enough. Does anyone have any experience with a setup similar to this?