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PEX vs. copper

The original system was a single-pipe steam system hooked to a 1926 Arco boiler. I had to yank everything to gain access to the guts of the house and correct severe structral issues. Totally reframing a house from the inside, starting in the basement...talk about fun.
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Comments

  • [Deleted User][Deleted User] Member Posts: 16


    Hi all-

    I'm in the process of getting quotes for a complete repipe/new boiler install. I'm keeping the original cast iron radiators and am interested in your thoughts on copper vs PEX piping. This is my house which I plan on living in (God willing) for many years.

    Thanks,

    Doug
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  • [Deleted User][Deleted User] Member Posts: 314
    Copper vs. pex

    If you can afford it copper without a doubt. Been around a long time and will be there when were gone.It is however a lot more expensive and more labor intensive. For ME, I wouldn't have pex if it was all for free.
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  • [Deleted User][Deleted User] Member Posts: 1,790
    PEx

    Pex will outlast us all and it costs far less than copper. I would have no reservations about using pex for the piping that is not visible.

    Why the complete repipe? You can zone with thermostatic radiator valves and retain original piping in hot water systems in nearly all cases.
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  • [Deleted User][Deleted User] Member Posts: 15
    Black iron?

    Have you considered having it done in black iron? It expands less and attracts less attention from thieves.
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  • [Deleted User][Deleted User] Member Posts: 1,613
    pex vs copper

    are you converting from steam to hot water? if staying with steam pexand copper are nonos
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  • [Deleted User][Deleted User] Member Posts: 16


    Converting to hot water.
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  • [Deleted User][Deleted User] Member Posts: 1,935
    many say say with steam

    here:oops ( stay with steam)

    are you sure the old rads can take water pressure? what if they leak?

    if you start a post " change steam over to hot water" you'll get lots of replies on the subject.
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  • [Deleted User][Deleted User] Member Posts: 16
    Good Point

    I plan on pressure testing them before I install them (50psi dry before higher-pressure wet). I need to resize pretty much all of them so any leaks will be dealt with by nipple or section replacement. I (very stupidly) chucked the original radiators with the tearout of the old heating system, the "new" radiators came from a house that was just torn down-i.e. heating sytem functional up to the time of demolition.
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