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Hartford loop

Snowmelt Member Posts: 1,414
Not my job, but if the Hartford loop isn’t set up with a close nipple what will happen?
Not my job


  • AMservices
    AMservices Member Posts: 610
    depending on water level and running pressure, it might cause water hammer in that line. 
    On a side note, whoever did install that return,  could have done it with 3 less elbows. 
  • ChrisJ
    ChrisJ Member Posts: 15,658
    It could hammer.
    Might be fine, might not.
    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
  • dopey27177
    dopey27177 Member Posts: 887
    The Hartford Loop should not use anything longer than a shoulder nipple. I used the extra heavy nipples.
    Using a long piece of pipe allows scale or dirt to collect in the pipe. This could cause at some time in the future the slowing down of water flow into the boiler. Rare occurrence but possible.

    Sometimes under the right conditions severe banging will occur.

    It looks like only one side is connected to a Hartford Loop and what is that brass gizzmo in the T.

  • Snowmelt
    Snowmelt Member Posts: 1,414
    Lol 8 saw that also, looked like he was going to attach pex to it