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71,000 btu's for ranch house quick question

stevo_2 Member Posts: 22
I figured a heat loss of 71,000 BTU's an hour. I figured on using a XL series XL 30 105,000 BTU / hr min.output and 120,000 BTU/hr max output. Im planning on three zone heating with multi/pak 80 and fine/line 15. My question is with circulator pumps. Can I use a 4 GPM circulator on each zone or is this two much flow? I think for 1 GPM a circulator can pump out 10,000 btu's. So Im thinking a 4 GPM pump will push out a max of 40,000 BTU's to each zone. Is this to much? Is the boiler to big for this ranch. Just wondering if I could go to a liberty II water LD-20-P.


  • Robert O'Connor_6
    Robert O'Connor_6 Member Posts: 299
    Is it oil fired?

    If so I would be hesitant to use a 2 section boiler. Go with the three section and you will get better recovery out of your indirect water heater.

    Also this will give you capacity if you build on in the future.

    4 gpm is fine for baseboard.



  • stevo_2
    stevo_2 Member Posts: 22

    yes it is fuel oil.
  • stevo_2
    stevo_2 Member Posts: 22

    yes it is fuel oil.
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