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Posted by HeatPro on May 26, 2006 at 10:56:51:
In Reply to: pex for piping for hot water heating using radiators posted by joe on May 26, 2006 at 10:36:12:
It isn't better than copper. The Al(uminum) foil inside the plastic is a good vapor barrier, but it doesn't make it better than copper. Other pex is made with paint on the surface as a barrier to keep oxygen out of the system that rusts iron parts. Pex will require twice as many supports as copper as the plastic softens as the water becomes hotter.