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Discuss Expansion Vessel - Not sure abouts its purpose in the Plumbing Forum area at UKPlumbersForums.co.uk.

  1. Rob Foster

    Rob Foster Top Contributor!!

    Can somebody please explain the function of the expansion vessel on my heating. Is it to absorb the increased volume of water when its hot or/and to be a reservoir of water to top up the heating system when there are small drips Many thanks
     
  2. rpm

    rpm Trusted Plumber

    • Like Like x 2
  3. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    For expansion and contraction eg when your heating system is hot the water expands
     
    • Agree Agree x 2
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