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Old 10-04-2012, 01:31 PM   #1
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Default Making an immersion wort chiller, confused by material.

I was thinking about making an immersion wort chiller in a few weeks, when I went to look up the cost of copper, I was confused by this piece material specification:

"For temperatures up to 65°C".

What, will the copper start to corrode at 100C? Should I buy different material?

http://www.homedepot.ca/product/copper-refrigeration-coil-1-2-inch-x-50-foot/969918

Link to the stuff is above, I would appreciate some info from anyone.
Thanks in advance!



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Old 10-04-2012, 01:45 PM   #2
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That rating also takes into consideration the operating pressures of a refrigerator compressor. You'll be fine to use that. The melting point of copper is over 1000°C and there won't be very much pressure from your cooling water. You'll be fine.



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Old 10-04-2012, 01:49 PM   #3
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Thanks for the speedy response!

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Old 10-04-2012, 02:01 PM   #4
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You may want to look at a premade stainless steel chiller. New York Brewers has them in both 25 & 50 foot lengths for about what you'd pay in materials to make a copper one yourself. NYB also sells them on eBay a few bucks cheaper than their own website price.

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Old 10-04-2012, 02:08 PM   #5
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Quote:
Originally Posted by ThatGeekGuy View Post
You may want to look at a premade stainless steel chiller. New York Brewers has them in both 25 & 50 foot lengths for about what you'd pay in materials to make a copper one yourself. NYB also sells them on eBay a few bucks cheaper than their own website price.
I doubt this very seriously! I googled New York Brewers and found no site where you can buy a stainless steel chiller. In my shopping experience premade SS chillers are almost twice the price of copper.

I made my copper chiller for about 75% the cost of the cheapest one that I could find premade.
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Old 10-04-2012, 02:10 PM   #6
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These guys also have good prices on build kits - the price of their kits is usually less than what you can get just the tubing for at Home Depot/Lowes:
https://coppertubingsales.com/storefront/index.php?cPath=174_208&osCsid=k451or6vsrpfv9alkpq re75vl4

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Old 10-04-2012, 02:38 PM   #7
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Quote:
Originally Posted by kh54s10

I doubt this very seriously! I googled New York Brewers and found no site where you can buy a stainless steel chiller. In my shopping experience premade SS chillers are almost twice the price of copper.

I made my copper chiller for about 75% the cost of the cheapest one that I could find premade.
You must not have looked very far. It's actually New York Brew Supply (my bad), but it was about sixth from the top when I just Googled New York Brewers.

A 3/8" copper kit from the link above is $50, and you have to DIY the whole thing. The 3/8" stainless chiller from NYBS is $67, and all you have to do is slide on the hose and clamps (included). Seems like a good deal to me. And stainless doesn't corrode and is easier to keep clean. YMMV....

http://www.nybrewsupply.com/stainless-steel-wort-chiller-38-x-50.html
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Old 10-04-2012, 03:06 PM   #8
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Quote:
And stainless doesn't corrode and is easier to keep clean.
Sure, but stainless is also more than an order of magnitude less thermally conductive than copper...
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Old 10-04-2012, 04:57 PM   #9
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Quote:
Originally Posted by bdh

Sure, but stainless is also more than an order of magnitude less thermally conductive than copper...
Doesn't make much of a practical difference at all in real-world use. Especially when you recirculate ice water through it. I can knock 5 gallons from boil down to 60F in 20 minutes or less.


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