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Old 07-17-2013, 01:23 PM   #1
n240sxguy
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Default My semi walkin 5000 btu fermentation chamber

I've been working on this chamber for about a month now. Figured it was time to finally make a thread about it. I had a old fridge that I used to ferment in. It died, so I had to come up with something else to ferment in. It is built out of 2X4's, 3/8 plywood, R-13 fiberglass insulation, and 1" blue foam insulation.


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Old 07-17-2013, 01:33 PM   #2
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I used a $100 GE A/C from Walmart. I used my Altronics temp controller I had on my fridge that died. I bought an off delay relay off eBay to make the A/C's fan run for a couple minutes after the temp controller shuts the compressor off. Hopefully that'll alleviate any frosting of the coils when I turn it down to cold crash.


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Old 07-17-2013, 01:36 PM   #3
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this is awesome!
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Old 07-17-2013, 01:50 PM   #4
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Thanks. I've still gotta put a shelf in the middle to hold my plastic conical fermenter. I'll have room on be bottom to put 3-4 buckets, or get another conical eventually. Also have to finish the insulation. I put half the fiberglass insulation in yesterday after I finished the electronics.
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Old 07-18-2013, 04:34 PM   #5
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The rest of the fiberglass insulation, the shelf, and some of the blue insulation.


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Old 07-21-2013, 12:36 AM   #6
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Cut most of the remaining pieces of foam board today. Couple pieces left to cut, then glue them all in.
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Old 07-21-2013, 03:29 AM   #7
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Nice construction so far. What are you going to store on the upper shelf? Also, I notice you have your AC tilted downward a bit. I have mine level and I have noticed no condensation. Maye it has sucked all the humidity out of my chamber, but I do wonder.
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Old 07-21-2013, 03:49 AM   #8
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I made it where I could eventually have a conical on top and bottom if I want. The A/C is supposed to be tilted slightly to let it drain. I mounted it with the bracket that came with it. It may be tilted a little more than necessary. I don't think it will affect performance. I could put a spacer on the bottom to push it out a little if I needed to. It's about 1/3 bubble down. I drilled an 1/8in. hole in the corner to let it drain from there where I can catch and divert the condensate. Seems to work fine. I ran it down to 42 before the inner coil froze up. That was before I installed any of the insulation.
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Old 07-27-2013, 11:59 AM   #9
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99% done. A couple pieces of aluminum tape and some casters and she'll be done. Maiden voyage coming up tomorrow night. I fired it up yesterday evening and gradually cranked it down to 48. I'm gonna see how low I can get it tonight. I'd like to be able to hit 35 with it to cold crash. We'll see how it goes.
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Old 07-27-2013, 12:16 PM   #10
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Excellent, nice job!


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