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Combined wet and electric underfloor heating in wet room

Discussion in 'Plumbing and Central Heating' started by NeedHelpDIY, 9 Sep 2018.

  1. NeedHelpDIY

    NeedHelpDIY

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    Hi All,

    What would be the correct setup for combining wet (primary) and electric (secondary - for summer use) underfloor heating.

    We are installing a wet room on a concrete slab and will be insulation about this and then Screeding. The screed will contain wet underfloor heating pipes, the question really is how would we then instal electric backup above this?

    We assume you could simple put this below the tile adhesive to get the benefit of both options.

    Please offer up thoughts on this.

    Cheers

    Dan
     
  2. EFLImpudence

    EFLImpudence

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    Why would you want to?

    Install it so that the underfloor (wet) system can be operated separately.
     
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  4. Really have no idea why you'd want it in the summer aside from having two systems; certainly never heard of that.
     
  5. NeedHelpDIY

    NeedHelpDIY

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    The wet room will be in a basement. It will have MVHR extraction in it but is required for the purpose of drying out the space to avoid damp/mold.

    I was thinking of hooking this up to an electric backup towel radiator as well.

    As the entire basement will have 160mm PIR and insulated internally we would not need the heating on for vast periods of time as it also stays around 16 degrees c down there all the time already.

    If this is possible it would be good to know how anyone would go about installing it. I have never heard it mentioned before.

    If it was wet and based off of the main wet CH what type of override controller would we need as simple thermostat would not work I would assume or you would be forever turning it up and down.

    I have seen towel roads installed with the kudox controllers that gives flexibility to turn on and off over a set period which would work really well.

    Thanks iOS Image - 1842126608.jpg
     
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  7. It's all possible just pointless. Water run underfloor heating set in screed doesn't work like a radiator does. It's not convection heating, the floor becomes a thermal mass and emits heat over a prolonged period.
     
  8. DIYnot Local

    DIYnot Local

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