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Adding a basement zone

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robert griggs
robert griggs Member Posts: 65
in THE MAIN WALL
a basement zone of copper-fin tube baseboard to the existing boiler. The existing heating system is a gravity hot water system. If I add a basement zone with a pump and a flo-check, will this mess up the rest of the heating system?

Would it help if I added a flo-check on both the feed and return?

Thanks for your input.

R. Griggs

Comments

  • Big Ed
    Big Ed Member Posts: 1,117
    Possible

    It would effect the flow on the gravity. Depend on the hook up. The forced flow of water could help or hinder the flow of gravity.... A safer bet would be using independent boiler taps(lot's of luck) . Better yet install a circ on the main zone as well .


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  • Rudy
    Rudy Member Posts: 482
    Basement Zone

    With a baseboard zone pump sized for low flow and NOT firing the boiler you may be able to accomplish this without overheating the rest of the house on a basement call for heat. Otherwise, properly sized zone pumps and flow checks are needed for both zones.
  • Ken_15
    Ken_15 Member Posts: 34


    With this setup, every time the basement calls for heat, the gravity side will also get heated. There is no way to stop it. I currently have the same situation at a customers. We have decided to go with a wall hung unit to heat the added zone.

    If anyone can tell me how to pump from a gravity system w/out heat "gravitating" into the existing side I am more than all ears.
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