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Low pressure in hot water storage tank and overflowing

Discussion in 'Plumbing and Central Heating' started by patelilford, 20 Apr 2014.

  1. patelilford

    patelilford

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    Location:
    Essex
    Country:
    United Kingdom
    Experts,
    I have moved to a new house and need some clarification on overflowing of hot water storage tank.

    It is hot water storage tank (tornado unvented indirect). I have set thermostat to 45 celsius. Though, Pressure gauge on hot storage tank is always less than 1 bar and it do not move even if I increase thermostat.

    Also, it does overflow from tundlish intermittently. I am puzzled as why it should overflow at 1 bar of pressure.

    Any suggestion on how to increase pressure of hot water storage tank and also stop letting hot water dripping out?

    Regards,
    Jack
     
  2. stardanny

    stardanny

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    Is there a red vessel above or near that pressure gauge? I think this gauge is for heating. 1 bar is normal for heating system.

    Daniel.
     
  3. patelilford

    patelilford

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    Location:
    Essex
    Country:
    United Kingdom
    Hi,
    Thanks for response.
    The red tank (expansion vessel ) is inbuilt within hot water storage tank.

    Pressure guage is not standalone. It is temperature and pressure guage. It doesn't seems to be only for central heating as indicated temperature is for hot water.

    Regards,
     
  4. DIYnot Local

    DIYnot Local

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