Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > Fermentation Chamber build - Not getting cold enough
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Old 07-02-2013, 09:21 PM   #21
twocent
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Quote:
Originally Posted by Klutz

I have a box that looks exactly like that, I use a small window AC unit and it works great. The AC unit only goes down to 60 degrees, so that's as cold as i can get it but it works great for ales.

The AC unit is made to cool a larger area than a mini fridge, so should work better.
And you're able to chill down to 60-62? I know fermenting gets a bit warmer, so I'd be happy fermenting at 65ish


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Old 07-02-2013, 09:30 PM   #22
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Quote:
Originally Posted by twocent View Post
Nice. For that price, I wonder if I could use a chest freezer and cut a hole in the side for a fan

Something like this:

http://southjersey.craigslist.org/app/3895226775.html
That would work, but you would need to locate the coolant lines. Maybe just do a controler on the chest freezer? My back wouldn't like a design like that for me but maybe yours is ok with it. There are a number of builds with window ac units. Just stay away from ones with a digital controler built in. I could never figure a way to bypass it. Drove me nuts.. looks like this:


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Old 07-02-2013, 09:35 PM   #23
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Quote:
Originally Posted by twocent

And you're able to chill down to 60-62? I know fermenting gets a bit warmer, so I'd be happy fermenting at 65ish
How many BTUs is you A/C?
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Old 07-02-2013, 09:36 PM   #24
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Quote:
Originally Posted by Magic8Ball

That would work, but you would need to locate the coolant lines. Maybe just do a controler on the chest freezer? My back wouldn't like a design like that for me but maybe yours is ok with it. There are a number of builds with window ac units. Just stay away from ones with a digital controler built in. I could never figure a way to bypass it. Drove me nuts.. looks like this:
Are you talking about bypassing the controller to drop below 60?
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Old 07-02-2013, 09:43 PM   #25
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Originally Posted by twocent View Post
Are you talking about bypassing the controller to drop below 60?
No just put a temperature controller on the chest freezer. Leave the chest freezer whole. It should fit 2 better bottles (check me on that). My brothers used that setup for a while now. (Chest Freezer plus a analog johnson) He makes great lagers.
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Old 07-02-2013, 10:08 PM   #26
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Well, I came home to my chiller at 19.5 - it's set to 19.6 and the bottles not frozen but still cold 12 hours later. So my work looks to have improved things, but its definitely not there yet. At least I don't have to rush things to get a swamp cooler setup. I can swap bottles back and forth for the next 10 days and work on improving the chamber with an A/C unit later. Maybe I'll brew a Saison next and not worry about this.
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Old 07-02-2013, 10:17 PM   #27
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Quote:
Originally Posted by Magic8Ball

That would work, but you would need to locate the coolant lines. Maybe just do a controler on the chest freezer? My back wouldn't like a design like that for me but maybe yours is ok with it. There are a number of builds with window ac units. Just stay away from ones with a digital controler built in. I could never figure a way to bypass it. Drove me nuts.. looks like this:
Maybe I'll grab a used chest freezer that can fit two carboys and another stc-1000 and dedicate that to lagers. I'll have my ale chamber and lager box side by side
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Old 07-03-2013, 01:41 AM   #28
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I just got a chest freezer on CL for $50. Built the STC-1000 and it is staying from 18-18.8C with no problem, ambient temp is 95F right now. I had to remove the coils from one of the shelves to fit 2 buckets in there. Build a small basic stand to help with the wait, ans shazaam! The Ferminator is born. Do this and you'll be good to go. Just be very careful when bending as it will crimp easily. Better yet, get one without coils running through all the shelves.
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Old 07-03-2013, 01:45 AM   #29
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Finished and functional
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Old 07-03-2013, 02:43 AM   #30
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Quote:
Originally Posted by twocent View Post
And you're able to chill down to 60-62? I know fermenting gets a bit warmer, so I'd be happy fermenting at 65ish
Yes, it can go all the way down to 60. It stops at 60 because that is the lowest setting on the AC unit. I use a Johnsons controls unit to control the temp.

Quote:
Originally Posted by twocent View Post
How many BTUs is you A/C?
I don't remember the BTUs, it was the smallest unit they had at Lowes (about $100-$150) Frigidaire.


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