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NEW HYDRONIC BOILER

KENG
KENG Member Posts: 1
in THE MAIN WALL
I am planning to replace my gas fired hot water system (150,000 BTU- Utica)with a new boiler. Most of the package boilers come with one pump attached. I have three zones. Is it better to remove the pump and put in a seperate pump for each zone or should I just use control valves?

Comments

  • Joe_30
    Joe_30 Member Posts: 85


    On a smaller house a single circulator on the supply side of the boiler, downstream of [pumping away from] the point where the expansion tank takes off, works fine. Have a nice manifold with three zone valves. Get Dan Holohan's small useful book "Pumping Away".
  • Robert O'Connor_7
    Robert O'Connor_7 Member Posts: 688
    KENG.

    How did you arrive at that 150,000 BTU figure? Do you know the GPM needed? As Joe said, you may not need more than one. I like zoning with pumps but small zones really don't need it. Maybe you can give more info about your system and we can come up with just the right advice.

    Robert O'Connor/NJ
  • GH
    GH Member Posts: 45
    GO WITH THE BEST

    Take a look at the MONITOR boiler line MZ BOILER.COM
    WHAT is not to like about this awesome equipment?
  • oil-2-4-6-gas
    oil-2-4-6-gas Member Posts: 641


    everyone on this site will agree that the first step in replacing any system would be to do a heat-loss calculation and size the equipment correctly--you may have an existing 150,000 btu boiler now but most boilers are grossly oversized--you may only need a 120,000 btus or even 100,000 btu ---- go with a good control strategy--outdoor reset w/a modulating gas boiler will save you so much in energy savings that the system will have a short payback
This discussion has been closed.

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