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Old 10-23-2011, 04:16 AM   #1
bredstein
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Aug 2011
Everett, MA
Posts: 135
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Today I tested a cooler that I made close to the mother of fermentation, available online. It worked well - I put three 1/2 gal milk jugs with ice in the evening, and filled a 6.5 gal carboy with the tap water at about 75 degrees. The fan kicked in immediately, and worked all night. In the morning the water was 57 degrees. (Well, actually I use centigrade, so it was from 24 to 14.) Then the fan started turning on and off. The only bad thing is that the milk jugs developed cracks and leaked, so I'll probably go with the blue elements.

I did make a few changes in my design. First, I did not want a removable top. Instead of hinges I use metal square tubes and bolts. I also added a 12v light and a viewing hole in the front door, so I can see the bubbles without opening the door :-) Here are some pictures:
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Old 10-23-2011, 04:19 AM   #2
bredstein
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Aug 2011
Everett, MA
Posts: 135
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Here are some more pictures of my cooler.
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Old 10-24-2011, 05:36 AM   #3
Doomsday
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Sep 2011
Anchorage, Alaska
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a peephole!?

what an ingenious idea. I never would have thought of that.

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Old 10-24-2011, 05:49 AM   #4
Hatchbrew
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Dec 2010
Cloverdale, California
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How many carboys can you fit?

 
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Old 10-24-2011, 07:08 AM   #5
Brewin_Bob
 
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Jan 2008
Spring, TX
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That peephole is pure win, in my opinion. Your ferm chamber looks really nice.

I gotta get back into this obsession!
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Old 10-24-2011, 01:29 PM   #6
DrDarwin
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Dec 2008
Fort Worth
Posts: 106

I love the peephole! I was thinking of doing something like that to my fermentation chamber, but never really got around to it.

What did you use exactly?

 
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Old 10-24-2011, 02:38 PM   #7
BetterSense
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Jul 2011
Richardson, Texas
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This is really nice, but I have a SOFC and switching the ice is a real bother especially if you travel. It never fails that I let the ice completely melt at some point and let the internal temperature rise too high. I can't see how these ice-based chillers are worth it compared to just getting a small chest freezer and using that.

 
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Old 10-25-2011, 01:50 AM   #8
LarryC
 
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Jun 2009
San Diego, CA
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This is the first time I've really looked at this type of fermentation chamber so forgive my dumb question. Does the ice go in the bins at the bottom? Does the air just circulate through the inside of the chamber or is it drawing in outside air as well?

By the way, real nice job, it reminds me of the ice boxes from back in the day!

 
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Old 10-25-2011, 02:18 AM   #9
bredstein
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Aug 2011
Everett, MA
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Quote:
Originally Posted by Hatchbrew View Post
How many carboys can you fit?
Two. I have only one so far, but am thinking of getting a second one.

 
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Old 10-25-2011, 02:30 AM   #10
bredstein
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Aug 2011
Everett, MA
Posts: 135
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Quote:
Originally Posted by DrDarwin View Post
I love the peephole! [...] What did you use exactly?
I bought it at Home Depot. Sold normally for 14.27, it was on sale for 3.50, could not pass the deal. I don't see the brass finish online, it might be discontinued, but the satin-nickel is available (SKU # 553012). It is called Defender Security 1 in. Big Eye Door Viewer. The only minor problem with this viewer is that it is designed for 2" doors, and I have 2" insulation plus another 1/2 inch of plywood. Luckily, my insulation is a sandwich of two 3/4" pink sheets, and a 1/2" sheet covered with foil. I just cut out a 2x2 square of the 1/2" layer around the hole, and plastered with a foil tape. Works for me!

 
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