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no oxygen barrier

just bought a house that has existing raddiant heat
i was told by a plumber that the pex ( red 3/4 inch tubing) used has no oxygen barrier , and that it could cause me rust problems down the road.. he said there was some type of oxygen eater i could add to the system to alliviate the problem .. anyone familiar with such a thing??

prob 2
the boiler is running straight water and i want to run antifreeze
what do i use and how much

thanks in advance

Comments

  • Steve Miller
    Steve Miller Member Posts: 115
    non barrier tubing

    Look at the tubing yourself and there should be some lettering and numbers on it. Get back to us and let us know what it says. It may be barrier tubing. I don't beleive in additives of any kind including antifreeze unless some pipes are exposed to freezing conditions. If you find your tubing to be oxygen permable, you can always seperate the boiler from the tubing with a heat exchanger and non ferrous componets.

    Steve m.
  • Mike Kraft
    Mike Kraft Member Posts: 406
    Read this!

    Lots of info in these "walls" :).........cut and paste this link and read.As Steve said check with the manufacturer of the tube.Red tube I know is Rehau and SlantFin..........could be others.You should investigate and take measures to correct if needed.As Steve said a Heat Exchanger(HX) would be smarter than "magic potions".

    cheese

    http://www.heatinghelp.com/newsletter.cfm?Id=30
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