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Have I Seriously Sinned?

Swisher Member Posts: 17
Good Morning Everyone,

I've got an outdoor wood boiler (open system) with PEX pipe bringing 20% glycol into a house. Boiler water is also treated with anti-corrosion chemical. Inside the house there's a small section that's plumbed with a total of 18" of galvanized pipe -- some elbows, a few tees and a couple of unions, all together in two neighbouring sections. I've read that nasty, gooey things happen when galvanized and glycol get together, but is this really an issue with such a small bit of galvanized? Online I read phrases like "could be a problem", "may cause problems", and "should be avoided". I'll tear the galvanized all out and replace it with black iron if it's prudent, but is it really? What would you do?

Thanks so much,



  • kcopp
    kcopp Member Posts: 3,990
    if you have....

    (as you should/must ) a Heat Exchanger between the 2 systems you will be fine.
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