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Radiator not heating fully

Discussion in 'Plumbing and Central Heating' started by DIYJenny, 22 Nov 2019.

  1. DIYJenny

    DIYJenny

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    Location:
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    Country:
    United Kingdom
    Our living room radiator is never very hot and is cooler at the bottom. A CH guy said a chemical flush would sort it. However, I used the key which bleeds the radiator and completely clear water came out. Then I closed off all the other radiators in the house which resulted in the living room radiator becoming very hot top and bottom. I then opened all the other radiators to 2 on the TRV. Result was the living radiator returned to its not very hot state.

    We have 14 radiators and the boiler is upstairs and the living room downstairs.

    I am thinking our boiler is maybe not large enough but we had it checked for size a while ago and we're advised it was only marginally too small.

    Would appreciate advice on any other reason radiator is not hot.

    Not too technical please!

    Grateful thanks.
     
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  3. terryplumb

    terryplumb

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    The system probably needs balancing .
     
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  4. DIYnot Local

    DIYnot Local

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    3 Sep 2019
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