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Unread 09-27-2005, 12:07 PM   #7
Blackeagle
Thermophile
 
Join Date: Oct 2002
Location: U.S.A = Michigan
Posts: 1,243
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http://www.directron.com/blaframcooler.html

A copper version of these?

Just need to add a copper spiral turbulator to your version.

Like the fact you are using copper instead of aluminum, much better. I'd also suggest you use a drill press to dimple the surface the water flows over for more surface, may as well get all the performance you can while going to this much trouble.
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