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  1. #1
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    Default Help please, newly laid floor not getting very warm

    Be gentle with me, this is my first post!
    Our newly installed ufh and cause of many many more grey hairs (long story involving having to completely remove the old floor and replace)was finally installed and tiled over about a month ago. We used 10mm insulation boards under it and got an electrician to wire it in. All resistance values checked etc at every step of the way. Left it over 3 weeks to dry out etc and when we switched it on, it painfully slowly raised the temp to 7 deg C and no warmer. When I say painfully slowly I mean several hours, we then left it on overnight to see if it would improve but it still only got to a max of 7. Is this right? In which case it has been a complete waste of time and money and more, massive amounts of stress.
    I really hope someone can advise? We have contacted the supplier who is being less than helpful.
    Thanks for reading.

  2. #2
    Tool Hound Sir Ramic's Avatar
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    Default Re: Help please, newly laid floor not getting very warm

    Have you got more details, what make was it ? what wattage ?

  3. #3
    Tilers Forums Arms Member Stewart's Avatar
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    What's the wattage if the mat.

    Is that room temp or floor temp.

  4. #4
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    Default Re: Help please, newly laid floor not getting very warm

    Hi, thanks for looking!
    It is the floor temp, the room temp gets up to about 12 deg C. slightly higher if the radiator is on in the adjoining room.
    It is a loose cable kit made by thermopads, TR3100 thermostat, ekoboard 10mm

  5. #5
    jay
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    Default Re: Help please, newly laid floor not getting very warm

    how was the probe fitted and welcome to the forum

  6. #6
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    Default Re: Help please, newly laid floor not getting very warm

    Thank you :-)
    Ummm, probe fitted into floor, I remember hubby dug out a groove for it?
    Forgot to say cables were 65mm apart so wattage 150 I think...am I right in thinking the wattage varies according to how close together the cables are?

  7. #7
    Tilers Forums Arms Member Stewart's Avatar
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    How far apart were the cables installed.
    Did you put self levelling compound over cable.

  8. #8
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    Default Re: Help please, newly laid floor not getting very warm

    hiya, 65mm and yes we did.

  9. #9
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    Default Re: Help please, newly laid floor not getting very warm

    How big is the floor area, what size kit was installed and have you checked the thermostat settings ?

  10. #10
    jay
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    Default Re: Help please, newly laid floor not getting very warm

    is the probe under insulatiom board and do any wires cross over or run near the probe

  11. #11
    Tilers Forums Arms Member Stewart's Avatar
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    That's works out at a 150 watt, and should be suitable to heat the floor to 25+ degrees easily. Is the thermostat in the room that's tiled or outside in adjoining room.

  12. #12
    Tool Hound Sir Ramic's Avatar
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    Default Re: Help please, newly laid floor not getting very warm

    Not really the done thing but I would be inclined to rule out the 3 items that can go wrong, the thermostat probe, the controller and the heating element itself. You can do thisby bypassing the controller and probe. this is done by connecting a plug to the power cable and feeding power direct to cable.
    Please note that this should be done by a qualified electrician.

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