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extrol tanks

billtwocase
billtwocase Member Posts: 2,385
in THE MAIN WALL
Paul, you need to meassure the amount of radiation. Any brand of tank will have a size chart, or they should.

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  • Paul S_3
    Paul S_3 Member Posts: 1,276
    extrol tanks

    how can you tell what size expansion tank to use on a system? [ extrol #15,#30, or #60]
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  • mark ransley
    mark ransley Member Posts: 155


    Im a Ho so I know didly, but My tank was attic and with new boiler basement. Boiler over pressured until extra was installed. Extra meaning extra.
  • billtwocase
    billtwocase Member Posts: 2,385


    That must be an old house. Sounds like a 60 is what's needed. It can't hurt to oversize the extrol tank, but undersizing, i'll bet you know the result
  • scrook_3
    scrook_3 Member Posts: 64
    So...

    probably a gravity (now pumped?) system w/ large cast iron radiators and large iron pipes feeding them, (and formerly an open attic expansion tank) vs. a system w/ finned copper tube baseboards. A system like that holds a lot of water so needs a larger Extrol tank. Higher water temperatures and larger system volumes both lead to larger X-tank requirements. How big's the current tank (number or dia & height)?
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