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Home Brew Forums > Home Brewing Beer > DIY Projects > Fermentation Chamber build - Not getting cold enough

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Old 07-02-2013, 06:39 PM   #11
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Originally Posted by anonymousbrew View Post
that was my thought. or you're dumping heat back into the chamber from the hot side of your fridge. How is the heat dissipating from the coils?
How do you check that?
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Old 07-02-2013, 06:41 PM   #12
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i mean, is the entire fridge enclosed in the chamber, or is the backside of the fridge with the coils and fins exposed to the outside.

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Old 07-02-2013, 07:08 PM   #13
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i mean, is the entire fridge enclosed in the chamber, or is the backside of the fridge with the coils and fins exposed to the outside.
Only the front half is in the chamber. the coils are out the back.
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Old 07-02-2013, 08:14 PM   #14
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It looks like you using a refrigerator to cool down a space that is almost 10 times its size. Many dorm fridges don't do a great job of cooling down their own insides.

Frankly I think this is a non-feasible idea due to the size.

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Old 07-02-2013, 08:30 PM   #15
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Originally Posted by broadbill
It looks like you using a refrigerator to cool down a space that is almost 10 times its size. Many dorm fridges don't do a great job of cooling down their own insides.

Frankly I think this is a non-feasible idea due to the size.
Would switching the fridge out for a window A/c be feasible?
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Old 07-02-2013, 08:45 PM   #16
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Try taking some foam board cut to size and installing in the middle of the camber. In essence cutting the chamber size in half. If it cools then you have an under sized fridge. I have the same type of chamber but smaller and I have a freezer/fridge to cool thats double the size of your unit. Its been thru 100 deg weather and no problem with ALE fermentation temps holding steady and the fridge is NOT running all the time.

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Old 07-02-2013, 08:48 PM   #17
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Originally Posted by Magic8Ball
Try taking some foam board cut to size and installing in the middle of the camber. In essence cutting the chamber size in half. If it cools then you have an under sized fridge. I have the same type of chamber but smaller and I have a freezer/fridge to cool thats double the size of your unit. Its been thru 100 deg weather and no problem with ALE fermentation temps holding steady and the fridge is NOT running all the time.
I actually have a thick piece of 2" insulation cutting the chamber in half it runs full height and is snug
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Old 07-02-2013, 08:51 PM   #18
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Then you need a better fridge. Here is my build FWIW not saying its the only way to do it but its working. I have tried a window AC unit, it didnt work for me. Never kept it cold enough.
Fridge I am using http://www.walmart.com/ip/Danby-4.4-...Steel/16621129

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Old 07-02-2013, 08:56 PM   #19
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Quote:
Originally Posted by Magic8Ball
Then you need a better fridge. Here is my build FWIW not saying its the only way to do it but its working. I have tried a window AC unit, it didnt work for me. Never kept it cold enough.
Fridge I am using http://www.walmart.com/ip/Danby-4.4-...Steel/16621129
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
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Old 07-02-2013, 09:18 PM   #20
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Would switching the fridge out for a window A/c be feasible?
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.
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