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baseboard heating

egrosarioegrosario Posts: 2Member
I want to install a loop of my gas steam boiler.
I can I get away with a gravity loop instead of adding a circulation pump?
Is going to be two baseboards with the run being less than 25 ft.
Eloy G. Rosario


  • HVACNUTHVACNUT Posts: 2,634Member
    Piping and wiring as a separate hydro zone is the way to go.
  • egrosarioegrosario Posts: 2Member
    Thank you HVACNUT,
    I am going to pipe a separate loop with a bypass..
    What I am trying to do is go with a passive hot water loop.
    This is typically use for domestic. I was wondering if I can use this system along with a gravity loop in place of a circulating pump.
    Eloy G. Rosario
  • Jamie HallJamie Hall Posts: 11,458Member
    Problem is... with very little elevation difference, you'll get almost no flow at all. Use a pump.
    Br. Jamie, osb

    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England.

    Hoffman Equipped System (all original except boiler), Weil-Mclain 580, 2.75 gph Carlin, Vapourstat 0.5 -- 6.0 ounces per square inch
  • JUGHNEJUGHNE Posts: 6,215Member
    edited June 1
    It takes elevation differential and also temperature differential.
    I have the gravity loop on my DHW and it achieves only a small trickle flow, good for DHW but not enough to heat BB. IMO

    You could pipe is as you talked and if it does not work just add a pump later.
  • Danny ScullyDanny Scully Posts: 1,219Member
    edited June 2
    You could also pipe the wet returns through the baseboard and this could act as you’re detailing.
  • HVACNUTHVACNUT Posts: 2,634Member
    > @HVACNUT said:
    > Piping and wiring as a separate hydro zone is the way to go.

    Why exactly "off topic" ?
    > @HVACNUT said:
    > > @HVACNUT said:
    > > Piping and wiring as a separate hydro zone is the way to go.
    > Why exactly "off topic" ?

    Probably a fat thumb. Hate to thing off how many times I have accidentally clicked the wrong tab
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