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Combining PEX and copper

No problem at all as long as you understand that pex has a very large expansion rate.And you pipe it with that in mind.The pipe will need room to expand without rubbing against fraiming members.

Your other option would be to use pex-al-pex.(pex with aluminum in it)It has a much lower expansion rate but is a little more difficult to work with.

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Comments

  • Jeff_16
    Jeff_16 Member Posts: 1
    Using PEX with copper

    Hello -
    I have baseboard fin-tube heat run by a boiler and I'd like to connect the boiler to the radiators with PEX in order to avoid sweating copper and all the elbows, etc. Is there any problem with using PEX tubing (instead of copper) to run the strait-aways and turns?

    Thanks in advance!
    Jeff
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