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How to lay a DEVI underfloor heating mat

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  • 24-08-2005 2:45pm
    #1
    FrankGrimes
    Registered Users Posts: 4,031 ✭✭✭


    I am going to lay a DEVI underfloor heating mat in my bathroom but need some advice on how to go about it.

    Electrician has run a cable for it so powering it is not a problem. I will double check but am pretty sure it’s the Devimat DTIF I got (got it half price off a mate who knows a lad who works for DEVI) so this one has only one cold tail making it easier to layout. It came with a length of thin black piping – is this to run the sensor through?

    The instructions are pretty poor so I’m not sure what to do with the sensor – does it need to run across the mat or where should it go?

    I will be laying ceramic tiles on top of the heating mat and my main question is: what should I put on top of the mat? Do I just lay the tile adhesive extra thick to cover the mat or should I put leveling compound over the mat and then tile adhesive on top of it? Do I need to get special heat resistant tile adhesive (stuff I have is flexible but doesn’t explicitly mention heat resistance)?

    Should I staple the mat (taking care to miss the cables) to the 6mm plywood underneath which is firmly screwed into the floorboards below?

    Do I need to put down insulation below the mat or will the plywood prevent it losing too much heat?

    Thanks


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    #2
    Ronan H
    Registered Users Posts: 1,058 ✭✭✭Ronan H


    Hello, i know its ages since you posted the question but weve just had our bathroom done with Devi Mats and the guys that installed it said there was a layer of "glue" over the mat and then the tile adhesive etc... Thats the extent of the conversation, hope it gives you a little insight athough it doesnt seem like much...

    Heat Head


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