Expansion tank location

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bauer
bauer Posts: 85
in Radiant Heating
Hi all,



I'm just a GC... Have done boiler piping on my on rental homes to deal with problems re-piped everything as per 'pumping away'.



Anyway, my buddy called me about a leaking expansion tank (steel tank in the ceiling). It's a duplex, and I took a look at his other heater in there, installed in 2005, and saw a diaphragm tank connected to the PT relief pipe - see below. Is there any reason a reputable plumber would set it up this way? I've never seen it. Also there is no means for air separation at the boiler. It is not pumping away.

Comments

  • Paul Pollets
    Paul Pollets Posts: 3,672
    The right way...

    Isn't quite like this. "Pumping Away" shows how to do it. So do the application drawings in Siegenthaler's "Modern Hydronics".
  • bauer
    bauer Posts: 85
    Boiler instructions

    The boiler instruction manual was still there on the wall and clearly showed to pipe the expansion tank into an air separator with feed valve nearby.



    I know that an experienced plumber in our area did this install, I was just curious why or if anyone had ever seen it?
  • Unknown
    Unknown
    he may

    He may be an expericenced plumber but a total hackery in hydronic heat

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