I never planned on building one, and only because I saw a box on sale did I think about it, and now I've ran out of space and am trying to figure out the best way to cool the box. I was originally planning on two small fans from an old IBM and running a remote thermostat, but with my limited space I'm really not sure. Any advice or creative thoughts? I was almost thinking of some kind of rack that could fit down on the carboy with a space for the airlock that could hold some ice bottles and the fan unit. No clue how I'd do it, just thinking. I haven't used it yet so I have no idea how cold it will keep. I'll be dropping the wort in from the top with a carboy carrier. Is my best bet just using the 2 liters around the carboy?