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making heat traps  Rate Topic 
 Posted: Sat Jul 24th, 2010 09:09 pm
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Joined: Fri Apr 30th, 2010
Posts: 24
I want to make heat traps for a new water heater but need some input. I know the best construction would be from tubing and elbows. What would be the best dimensions for an upside -down "U"?

If I decide on using flexible tubing to make a heat trap, do you suggest copper or stainless steel ? Do you have any information on problems with either (like cracks and leaks)? Also, is there any dielectric activity between stainless steel and copper  (or any other metal ) that would be harmful?

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 Posted: Mon Jul 26th, 2010 04:11 am
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Joined: Sat Sep 11th, 2004
Posts: 4118
Hello:  In general, I like to use flex connectors as it is quick and easy to make a heat trap six inches deep with a 24" connector.  Either copper or stainless is probably good but might depend on your water.  If it's acidic, stainless would probably hold up better.  There should not be a situation where you need to put flex lines of different metals together.  If putting a stainless flex on copper pipe, the dielectric on the end should separate the metals.  Anyway, it's been done for years with no damage I've ever heard of ;)

Yours,  Larry

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