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Plumbing & Plumbers Forum - HEP2O Underfloor heating
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HEP2O Underfloor heating

Discuss HEP2O Underfloor heating at UK Plumbers Forums; I have a HEP2O system installed 8 years ago and has worked fine. 6 months ago I installed a new boiler, but in a different location - in the bathroom ...
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    Default HEP2O Underfloor heating

    I have a HEP2O system installed 8 years ago and has worked fine. 6 months ago I installed a new boiler, but in a different location - in the bathroom directly above, and now my HEP2O system hardly works. It seems to warm about one tenth (maybe less) of the floor but the rest remains cold. I have tried balancing all the radiators but this has not improved matters. Can anyone suggest a solution please?
    If I close down all the radiators it does work, but then the rest of the house does not heat up.
    Thanks Gordon

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    Default Re: HEP2O Underfloor heating

    Did you install the boiler

    Also same output as your last boiler

    Could be air in the loops that need purging
    Uheat – Wojtek likes this.
    IMPORTANT:
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    Default Re: HEP2O Underfloor heating

    I'd be thinking air but why didn't installer fix it
    Uheat – Wojtek likes this.
    IMPORTANT: Carbon Monoxide can be produced when ANY fuel is burnt, including oil, gas, wood and coal.


    GSR? Want gas safety or boiler repair advice? We will check out that you're genuine via the gas safe website, so please dont be offended when we ask for your details. DIYers, odd job people and have a go heroes need not apply.

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    Default Re: HEP2O Underfloor heating

    Shaun, thank you. It was installed by B Gas and is a similar size to previous boiler. I will try, again, to rid any air from the system. Gordon

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    Default Re: HEP2O Underfloor heating

    thank you, I will try, again, to get rid of air. Gordon

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    Default Re: HEP2O Underfloor heating

    What boiler did you have previously? and what boiler now. Did the old boiler have an external, to boiler, pump and the new one an internal pump?
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