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Where can I add a scoop and air vent

chagob
chagob Member Posts: 7
edited October 2 in Gas Heating

Where would be the best place to add a Taco vent and airscoop with the current setup

g1yfu784m3pb.jpg

Comments

  • HydronicMike
    HydronicMike Member Posts: 145

    It's pretty tight. Unless you want to do a near boiler re-pipe.
    What type of heat emitters do you have? If column radiators, just bleed them at the rads

  • chagob
    chagob Member Posts: 7

    I have radiators. It helps, but sometimes I have to do a drain and refill, and bleed to get all of the air out. Was hoping a vent and scoop could help. I don't mind doing a little repiping. What would you suggest?

  • HydronicMike
    HydronicMike Member Posts: 145

    Why would you have to drain and fill?

  • hot_rod
    hot_rod Member Posts: 25,706

    if im seeing it correctly there is a pump on the supply and returns?

    If that horizontal pipe between the pump and union is a supply, adding a purger there would be idea

    An issue with those old large diameter iron pipe systems is the flow velocity can be low, below 2 feet per second and the air doesn't move along with the water well.

    Use a good micro bubble type purger

    IMG_1110.jpeg
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • hot_rod
    hot_rod Member Posts: 25,706

    if oo

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • chagob
    chagob Member Posts: 7
    https://forum.heatinghelp.com/discussion/comment/1866517#Comment_1866517

    For some reason that has been the only way that I can force all of the air out and eliminate noise. The system probably needs replacing, just trying to hopefully get it along for another season.

  • chagob
    chagob Member Posts: 7
    https://forum.heatinghelp.com/discussion/comment/1866519#Comment_1866519

    There are three zones, a pump for each. I'll have to check when I get home to confirm if that horizontal pipe is supply or return.

  • HydronicMike
    HydronicMike Member Posts: 145
    edited October 2
    https://forum.heatinghelp.com/discussion/comment/1866528#Comment_1866528

    Air and noise are most likely from not following best piping practices, specifically pumping away from the expansion tank instead of into it.
    Just adding an air vent, especially in the wrong spot will only make it worse.
    A proper repipe would solve all your problems, and barring any leaks in the system, and probably the last time you’ll have to bleed and purge.
    3 story house?

  • chagob
    chagob Member Posts: 7

    @HydronicMike Yes, It's a 3 story house; basement, main floor, and attic. Basement and attic has baseboard radiators and the main floor has radiators.

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