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Old 02-01-2009, 08:35 PM   #1
nasmeyer
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Default Dual coil chiller

I wanted to make a chiller for standard extract batches in my 5 gal. brewpot, but felt that most chillers didn't chill the center of the kettle very well, so I made this dual coil chiller with standard hardware store stuff (man the prices have gone up recently) I havn't used it yet but my H2O temp in Michigan right now is just above 40* and I ran water through the chiller from my kitchen sink at just under 2 gals. per minute, so I have no excuse to not get another batch going soon!

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Old 02-01-2009, 09:00 PM   #2
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Looks good. Do have the inner coil connected to the outer coil for support so as not to put stress on it?

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Old 02-01-2009, 09:09 PM   #3
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Quote:
Originally Posted by HBHoss View Post
Looks good. Do have the inner coil connected to the outer coil for support so as not to put stress on it?
Not yet, it is all pretty stiff due to the tee connectors so I might leave it, but I also might use some stainless wire to connect the coils for support.
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Old 02-02-2009, 12:00 AM   #4
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isnt the idea behind whirlpooling the wort during cooling was to increase surface contact with the wort chiller. wont this decrease that ability though you have increased the surface contact within those area's? or are you whirlpooling via a pump?

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Old 02-02-2009, 04:04 AM   #5
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Im not doing any whirlpooling, just sticking it in the brewpot 10 mins before knockout to sanitize it, removing the pot from the burner, placing the pot in an ice bath, and running H20 through the coils till I get 80* or so.

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Old 02-02-2009, 04:39 AM   #6
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let us know how it works out. thx for the pics. very interesting

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Old 02-02-2009, 12:13 PM   #7
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Check out this thread that I started not too long ago, there is one similar to yours.
This might be becoming a trend!!

http://www.homebrewtalk.com/f51/imme...-design-98181/

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Old 02-04-2009, 07:47 AM   #8
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I went a head and modified my chiller a bit by using some copper wire to tie the thing together and strengthen it some, I also tested it in 2 1/2 gallons of boiling H2O in my brewpot and got the temp down to 80* in just under 6 minutes! No more "chill haze for me!

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Old 06-23-2010, 12:04 PM   #9
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Any updates on this setup?
I was thinking of doing the same thing.

My immersion chiller is coiled too high so I thought of removing 1/2 and adding it as a center coil.
The outer diameter is 8". so I was thinking of coiling it at 6" maybe 4". it all depends on what I can find to shape the coil around. I would bend it as one piece though just to eliminate possible leaking/failing joints.

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Old 07-04-2010, 03:23 PM   #10
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cool design! I am looking to make an immersion chiller soon and like the idea of a double coil chiller.

What diameter copper did you use?
What did you use for solder?

Thanks
Redbeard5289

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