Expansion Tank Size

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Cosmo, Oct 7, 2004.

  1. Cosmo

    Cosmo New Member

    Joined:
    Oct 7, 2004
    Hello,
    What would be the proper size expansion tank on my boiler. I have a Weil-Mclain WTGO-6 boiler with copper baseboard. I have a #30 x-tank in their now. The boiler is brand new. The x-tank about six years old and is from the old boiler. My pressure on the boiler get up to 30 and the relief valve (new) opens. Any suggestions.
    Thanks
    Scott
     
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