Originally Posted by bluenadas
I haven't thought through the dimensions yet on each space but I think I'd want them large enough for 3 carboys. And the keg/bottle area would be large enough to hold 4 cornies or 2 cornies + a case or 2 of beer (largest section).
HopsJunkie....as I'm a little new to the hacked cooling sources...what determines the use of a hvac vs a mini-fridge so far as square footage?
From everything I know about HVAC(which is minimal), determining your sq. footage helps determine the better solution. A mini fridge is only going to be able to support so many square feet, and with your setup a lot of off/on is probably going to happen(correct me if i'm wrong). Since you're going to all the trouble with the arduino auto-damper setup, it'd be a shame for it to die on you one day. In that case, a slightly more specialized HVAC setup might work better for you.
I just know if I was including lagers in my ferm. box setup, I'd be scared of my cooling going down from an overworked compressor failing. I'm sure there are more veteran HVAC guys on here who can give you more info, but I'm just giving my two cents here.
I really like the idea of having space for 3 fermenters in each and 4 cornies/2 cases in the biggest part. If i had to guesstimate...i'd say you're looking at 10 cu. ft. for each of the ferm chambers, and probably 10-15 cu. ft. for the corny/bottle chamber. It's big and sounds beautiful. I'd go ahead and draw something up if you can. Trace out fermenters, cornies, cases so you have a footprint and can really hash out your overall inside demensions.