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jongabay
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Re: September 12 - Day 4: Geothermal
jongabay   9/12/2013 2:39:19 PM
NO RATINGS
?? Are ground loop systems constructed using PEX tubing? Not as thermally conductive as copper, but no corrosion problems...

I don't think so but if anyone is using them, please let us know. I have used PEX for solar hot water systems, but not geothermal. It could be used but you would need longer runs to offset the lower thermal conduction so cost would be higher.



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