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How to Install an Electric Underfloor Heating Mat

Installing electric underfloor heating is not a difficult task as long as our step by step instructions are followed and you receive the very best advice to get the best underfloor heating for your installation.

Follow the step-by-step instructions below to install your Electric Underfloor Heating System.

Example Instruction
DEVImat installation step 1

Step 1
Measure the room and draw a sketch to help you calculate which mat or kit you will need. Then sketch in the position of the Underfloor heating mat.

Note
Choose the correct mat and install on the recommended construction.

DEVImat installation step 2

Step 2
Mark the positioning of the toilet before you remove it. This helps you avoid placing the toilet on top of the mat - and prevents you from piercing it with screws.

You will need to do the first of three resistance tests before you attempt to start laying any mats to ensure that your warranty is validated and record your resistance on your commissioning record provided with your mat / kit.

DEVImat installation step 3

Step 3
Cut a channel approx. 10 mm deep and wide in the wall and the floor, from the thermostat and about 1 m out into the floor. Glue the flex pipe for the sensor into this channel, and seal the end of the pipe with a piece of tape.

Carry out the first fix installation for the electrical connections - A qualified electrician will be required for this.

DEVImat installation step 4

Step 4
Clean the floor thoroughly, removing all dirt and soap residue, then lay out the self-adhesive cable mat. The floor surface must be primed if you are not laying the mat on existing tiles.

Top tip - Use a thermal substrate insulation board will improve the thermal performance of your underfloor heating system.

DEVImat installation step 5

Step 5
Clip through the grey netting to turn the mat over - but make sure that you do not cut through the red cable.

DEVImat installation step 6

Step 6
Turn the mat and position it as required. The self-adhesive effect can withstand 10-20 adjustments, so you can move the mat several times until you are satisfied with the result.

You will need to do the second of three resistance tests after laying the mats, to ensure that your warranty is validated and record your resistance on your commissioning record provided with your mat / kit.

DEVImat installation step 7

Step 7
Once you have positioned the cable mat, you can - depending on the new floor surface - encapsulate it using self-levelling screed or cover it with a thin layer of tile adhesive.

Once you have laid your final floor you will need to do the final resistance test to ensure that your warranty is validated, and record your resistance on your commissioning record provided with your mat / kit.

Follow all the rules regarding tiling.

Fix the tiles using the correct adhesive. Check with the tile manufacturer and adhesive supplier regarding the most suitable adhesive for your job.

Choose from our extensive range of thermostats and controls to regulate your underfloor heating.

If you have any queries regarding the installation of the Electric Underfloor Heating Mat please contact us.

Date Published: 31/10/2016

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