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Old 05-09-2008, 03:29 AM   #1
irunxcjm
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Default Stainless Steel Wort Chiller?

I saw that one of the larger suppliers online has a stainless wort chiller for sale. It is cheaper than the copper ones that they sell. I know that copper is a good metal for exchanging the heat, but would stainless work as well?

Maybe I should have done a search first!! Sorry for reposting the question!!



Reason: Found info in another thread!
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Old 05-09-2008, 04:45 AM   #2
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Yes it will work, no it's not going to exchange heat as well as copper.


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Old 05-09-2008, 05:11 AM   #3
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I believe that every foot of stainless steel conducts as well as every inch of copper. Sure, they are pretty but they are pretty worthless. IMHO.

Forrest
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Old 05-09-2008, 06:08 AM   #4
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Quote:
Originally Posted by Austinhomebrew View Post
I believe that every foot of stainless steel conducts as well as every inch of copper. Sure, they are pretty but they are pretty worthless. IMHO.

Forrest
Have you tried one yourself Forrest? Perhaps not, since you don't carry them.

I bring 5.25 gallons of wort from boiling to pitching temps in about 20 minutes with mine. My old copper one is hanging from the garage rafters, getting darker and greener with every passing day.
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Old 05-09-2008, 07:57 AM   #5
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I say its worth a look. I wanted to make one but i couldn't find the right tubing at the hardware store. Metal conducts heat well, plain and simple. Copper does do a better job but lets face it, our immersion chillers aren't the most efficient pieces of equipment nor are they extremely sophisticated. Most copper tubing is used in refrigeration. Thats where efficiency matters. We're chilling wort, a couple extra minutes is going to kill us. Or the wort, or the yeast. haha. =)
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Old 05-09-2008, 10:21 AM   #6
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Quote:
Originally Posted by Austinhomebrew View Post
I believe that every foot of stainless steel conducts as well as every inch of copper. Sure, they are pretty but they are pretty worthless. IMHO. Forrest
You must have never tried one.
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Old 05-09-2008, 12:14 PM   #7
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The thermal conductivity of stainless is in fact many times lower than that of copper.

However, in an immersion chiller, the rate of heat transfer through the very thin sidewalls of the tubing is insignificant compared to the rate at which the water actually absorbs the heat. If the tubing had much thicker walls, then yeah, it might be a problem, but as thin as they are I think it's fairly irrelevant.
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Old 05-09-2008, 02:01 PM   #8
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Quote:
Originally Posted by irunxcjm View Post
I saw that one of the larger suppliers online has a stainless wort chiller for sale. It is cheaper than the copper ones that they sell. I know that copper is a good metal for exchanging the heat, but would stainless work as well?

Maybe I should have done a search first!! Sorry for reposting the question!!
Where did you see it, if you don't mind passing on the info.
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Old 05-09-2008, 02:37 PM   #9
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Midwest carries them.
http://www.midwestsupplies.com/produ...t.aspx?Cat=231
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Old 05-09-2008, 03:00 PM   #10
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Quote:
Originally Posted by BlindLemonLars View Post
Have you tried one yourself Forrest? Perhaps not, since you don't carry them.

I bring 5.25 gallons of wort from boiling to pitching temps in about 20 minutes with mine. My old copper one is hanging from the garage rafters, getting darker and greener with every passing day.
Stainless should have to be thinner than copper. It is a stronger metal when at the same thickness (more dense). It would not exchange as well as the copper at the same thickness. Since it can be a thinner tube and retain some strength, it may work close to copper. With the prices of copper up so high, stainless tubing may well make more in-roads.

I would like to see the results of a test. Forrest may be able to get ahold of one for free to test if he called the manufacturer and told them he wanted to test them to see if he should start carrying them.


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