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Old 02-26-15, 11:11 AM   #1
sunspot
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Default heat exchanger supports/hangers

I'd like to know what others have done to locate (support or hang) heat exchangers in storage tanks. In my case coils of soft copper and/or pex tubing. I don't want anything that penetrates or could chaffe the lining over time if I can avoid it. I'd rather not introduce metals and risk a galvanic corrosion cell. I thought of using a wood 2" x 8" or similar as a 'curtain rod' for the coils but don't know what would happen to the wood over time in hot water.

Anyone?

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Old 02-27-15, 08:51 AM   #2
gtojohn
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how about more copper, like soldering a copper curtain rod strut or 2 across your coil?
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Old 02-27-15, 07:09 PM   #3
Mikesolar
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I've made my supports out of 1/2" CPVC water pipe and tees with a hockey puck with a blind hole in it for the feet. Nice and stable and lasts for ever.
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Old 03-11-15, 04:48 PM   #4
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Hi,
Norm put a lot of thought and work into his scheme for supporting and separating the copper hx coils in his tank:
Solar Hot Water and Space Heating System With Integrated Boiler

I've used plain old polypropylene rope, but in my case the hx is pex and its pretty close to neutral buoyancy. But, the rope was still in good shape last time I opened the tank -- probably after about 4 years.

Gary
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Old 03-12-15, 10:26 AM   #5
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Thanks Gary. There's a lot of interesting ideas in Norm's article.
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Old 03-13-15, 12:12 AM   #6
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Check out some of the pics in my gallery. They're not my coils, but should be helpful.

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