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Corrosion around fitting

Justinraz Member Posts: 11
Is this due to the incorrect material? Or do I need to look into something else. This is a Burnham ES2 boiler, and is about 2 years old.



  • ChrisJ
    ChrisJ Member Posts: 15,784
    If I was a betting man, I'd say that Chinese fitting has been leaking for a long time due to bad threads.

    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • Justinraz
    Justinraz Member Posts: 11
    Cool. I didn't want to buy the same parts and it happen again. I try to check the boiler and piping every six months for stuff like this. Guess I should have checked sooner and harder.
  • hot_rod
    hot_rod Member Posts: 22,258
    It may have leaked from day one. Often times a connection like that leaks when the system is cold, and stops as it heats up.

    It will be a bit of a project to replace, judging by the tight connection nipples and fittings.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream