Pex for SDHW [RE-wrenches]

[Kurt Albershardt]

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Interesting, thanks for the feedback.

We were looking at the single pipe variants, primarily for the feeders and risers (13 of them) on the floor loop.


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--On Monday, May 08, 2006 7:35 AM -0500 "Travis Creswell, Ozark Solar" <ozsolar at ipa.net> wrote:
>
> It's great stuff but it's expensive.  It's a great solution for underground
> direct burial heat transfer runs but it don't know if would be cost
> effective for applications that don't require a waterproof jacket. 2" dual
> pipe is over $30/ft and 1.5" is nearly $25/ft.  Fittings and termination
> kits are pricey but it's a great product when you need it.  We have the hand
> tools to expand and compress up to 1.25".  If we have to do 1.5" or larger
> we borrow a hydraulic kit from our distributor.
>
> PEX might be ok for solar thermal but are you really saving that much money
> if you use it?  Sure you're reducing the cost of the piping itself by up to
> a 1/3rd but is the savings for the overall job worth risking it?
>
> Best,
>
> Travis Creswell
> Ozark Energy Services
>
>
> -----Original Message-----
> From: Kurt Albershardt [mailto:info at es-ee.com]
> Sent: Sunday, May 07, 2006 11:26 AM
> To: RE-wrenches at topica.com
> Subject: Re: UV Resistant Insulation for Hot Water Pipes [RE-wrenches]
>
>
> Has anyone tried Rehau Insulpex for SHW?  PEX tubing surrounded by
> polyurethane insulation and covered with an LDPE jacket.  They make it in
> larger diameters that are looking like a possible solution for a commercial
> project.
>
> <http://www.rehau-na.com/construction/heating...plumbing/energy.transfer.piping..shtml>








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