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    Underfloor Heating Manifold Fault

    Heating Engineers

    We have a GEC night storage boiler which a specialist has confirmed is working properly. The boiler heats the water that flows through the underfloor pipework.
    We believe there is a a problem with the underfloor heating manifold which means that the 5 wall thermostats have no control over the underfloor heating.
    Currently, we charge the boiler all night in order to get any heat the next day. The daytime heating is throughout the whole house even though we only need it in 1 room at any time. The night storage heating is used up sometime in the early evening. We need someone to diagnose the fault with the manifold.

    Asked by Liam on 27th Nov 2019
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    GB’s Plumbing and Heating

    "I’d dare bet that there will be a blockage. These narrow pipes and manifolds are notorious for blockages. I’m sure that there is a cleaner for them, but you need a plumber/gas engineer with experience in them to solve the issue."

    Answered on 31st Mar 2020 - Member since Mar 2020 - report
    Profile Plumbers

    "It could be a divert or valve that switches demand to underfloor check that first."

    Answered on 20th Mar 2020 - Member since May 2018 - report

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