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Radiant Loop Circulator Question

bobbyd
bobbyd Member Posts: 8
in THE MAIN WALL
I am installing a radiant loop for my basement off my steam boiler. I already have piped the loop from the boiler to the TFI Everhot indirect tank, with circulator pumping back into the mud leg ( Thanks for the advice Maddog ! )

The manufacturer of the tank faxed me a piping diagram illustrating the radiant loop circulator pumping back to the coil, from the baseboard.

Dan's advice on this site suggests the opposite flow.

Others have said it is always best to pump towards the baseboard.

My money's on Dan advice, any thoughts or suggestion on piping would be appreciated.

Merry Christmas and a Happy Healty 2004 !

Comments

  • Mark Eatherton1
    Mark Eatherton1 Member Posts: 2,542
    The pump don't care...

    where it's located, so long as it is pumping away from the expansion tanks connection in the loop. It would however, make sense to pump away from the expansion tank, but towards the heat exchanger. This will put the pumps generated pressure (head) to immediate use.

    What method of controlling the heat to the RFH circuits are you intending to use?

    Yu may end up havig to do a primary/secondary arrangement with a 3 way or 4 way or VSI control.

    Got pictures?

    ME
  • bobbyd
    bobbyd Member Posts: 8


    Here is Dan's illustration of the proper way to create a radiant loop from a steam boiler.
  • bobbyd
    bobbyd Member Posts: 8


    Here is Dan's illustration of the proper way to create a radiant loop from a steam boiler.

    Any additions thoughts comments are welcome.

    I no photos yet of this job, but hope to soon.

    Thanks
  • Mark Eatherton1
    Mark Eatherton1 Member Posts: 2,542
    It'll work...

    either way. Dans way allows the water to be the hottest when it goes through the air separator.This releases more air than pumping toward the heat source, but they'll both work.

    You still need to answer the question about temperature control. Are you talking about a radiant floor project, or simple base board convector?

    ME
  • bobbyd
    bobbyd Member Posts: 8


    This is a simple baseboard convector, one zone.

    Single thermostat with relay to turn on both circulators on call for heat.
  • Mark Eatherton1
    Mark Eatherton1 Member Posts: 2,542
    Pipe it...

    as Dan shows it and it will work fine. Enjoy your new found comfort!

    ME
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