Im new to homebrewing (I've helped a friend with 3 batches and want to start my own) and am setting up/purchasing my own equipment. I saw a picture on these forums of a box-type thing that was insulated for fermenting a carboy at constant temperatures. I live in Flagstaff, AZ where (at the moment and pretty generally) the weather is cooler, and I was wondering if someone had DIY instructions. I figure there is going to need to be a hole for c02 to escape and I will also need something for temperature control ( like these NORTHERN BREWER: Fermentation Temperature Control) , other than that it seems like 6 sides of foam board insulation. Thanks for any help.
I built one of these using these instructions and have had great results with it. It only holds two carboys but you could easily modify the dimensions to accomadate more. There are also instructions on the same site for a digital temp. control using a digital residential thermostat, it works like a charm.
I think this is what I'm going to go with. Flagstaff is a big college town and I have already found convertable/working dorm fridges for only 25$. I'm hoping to start this project once I get back to school. Thanks for all the input.