Electric Underfloor Heating Mat Kit

Mat Kit for Under Tiles, Amtico & Karndean

Electric Underfloor heating is the perfect solution for creating a warm and welcoming atmosphere in your home. This year we have introduced the Webtech Elite Mat, perfect for under most tile flooring (including porcelain, ceramic & stone), Vinyl, Amtico & Karndean, this unique mat provides the best of German engineering and quality at an incredible price and is one of the best mats on the market today.

Limited Time Offer - Discover more about our 'Best Buy' Elite mat on our video 

 Purchase our new generation Elite mat for the same price as our 'Value Choice' Webtech mat

The sticky mat is the easiest of all our kits to install and, due to its unique cold connector & low profile, can save you time & money, by significantly reducing the amount of self-levelling compound required.

For the less DIY-minded we also offer and installation service, click here for more information

We are proud to have supplied underfloor heating to the following organisations:

Underfloor Heating Customers 

Best Buy - Electric Underfloor Heating for Under Tiles, Vinyl & Amtico

 ELITE (150W/m2)


  • Unique intergrated cold connector
  • Fully self-adhesive mats for smoothest possible finish
  • Made in Germany - Superior Build Quality
Great Value - Electric Under Floor Heating for Under Tiles, Vinyl & Amtico

WEBTECH (150W/m2)


  • A great value, high quality mat suitable for most rooms  
  • Adhesive strips on mat for easy installation
  • Manufactured in Europe
High Power - 200W Electric Under Floor Heating Heating for Under Tiles, Amtico & Karndean

WEBTECH HP (200W/m2)


  • Designed to warm those hard to heat rooms 
  • Perfect for conservatories and orangeries 
  • Powerful  200 W/m2 output

Which Mat Suits You Best?

Webtech Elite (Sticky)

Webtech Standard

Webtech HP

Power
150W/m2 150/m2 200W/m2
Primary Heating
(Room with standard heat-loss)
Yes Yes Yes
Fixing Method
100% Sticky Mesh (flattest possible method) Integrated Sticky Strips Supplied UFH  Tape
Cold Connector
Fully Integrated Standard Shrink Wrapped Standard Shrink Wrapped
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Why Choose Rayotec?

We are a family run business, now in its 2nd generation operating for nearly 30 years. We source the highest quality mats from around Europe and our experienced team offer exceptional technical support and a detailed design service with the care that only comes from a family run company. We can offer personalised, specialist support at every stage of your underfloor heating project.


Webtech Elite:

The Webtech Elite integrated connector Heating Mat is the next generation of heating mat. Straight out of Germany, the high tech design of the mat was originally created for the chemically aggressive, and potentially explosive, environment of offshore oil rigs and chemical plants for which the standard shrink wrapped connection was unsuited. This superior high performance underfloor heating mat gives installers a flatter surface resulting in a more even floor finish.

  • The fully integrated cold connector makes it 50% thinner than shrink-wrapped connectors, negating the need to carve into your subfloor to make space for a bulky connector
  • The cold and hot cable have the same diameter giving a more even mat across the floor
  • The premium mesh has a 100% sticky underside making easy to install and giving a flatter finish
  • It has a thin, fluoropolymer coated heating cable that you can tile directly on top of
  • Greater reliability and a more robust system
  • 16 Year Guarantee
  • Made in Germany

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Webtech Elite Electric Underfloor Heating Mat Kit

Webtech:

Our standard Webtech heating mat provides a great value heating solution for most home environments. These German engineered mats meet the same high standards that we insist upon with all of our electric underfloor heating systems and, when combined with our full range of services and a 16 year manufacturers guarantee offer an incredible low cost heating solution.

  • Integrated self adhesive strips for easy installation
  • Thin heating cable so that you can tile directly on top
  • Minimal Wiring – One mat can cover up to 14m2 which means that, in most rooms, only 1 or 2 mats will be required
  • Made in Europe – Superior Build Quality
  • 16 Year Guarantee

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Webtech Electric Underfloor Heating Mat Kit


Webtech HP:

Some rooms need a little more help than others. In rooms where there is a higher heat loss, such as Conservatories and Orangeries, the 200W/m2 Webtech HP mat kit can give a little more oomph to get your room to its perfect ambient temperature.


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Installation -Under Tiles & Vinyl Flooring


How to Install Electric Underfloor Heating under Tiles
How to Install Electric Underfloor Heating Mats Under Vinyl, Karndean or Amtico

Installation Tips:

Top tip 1 - Preventing cracks in the tiles, adhesive and grout

Weber Flexible Tile Adhesive for Installing Electric Underfloor Heating Under Tiles or Vinyl

A recently laid screed could shrink for months or possibly years after being laid. The stresses this causes will transmit themselves through to the brittle ceramic tiles. For large areas or if you are using a large tile, using an uncoupling membrane can help these shrinkage movements to “slide” beneath the tiles without cracking them. Otherwise using a flexible adhesive will help to overcome the stresses.

It is very important to use the right primer, adhesive and self-levelling compound. Always check the manufacturers guideline for suitability with subfloor, floor covering and use with underfloor heating. When installing we normally use Weber products if possible (Primer: Weber PR360, Adhesive: Weber.set SPF Self Levelling compound: weber.floor flex).

If you are tiling on a suspended wooden floor then you will need to first put down a layer of plywood. Your tile suppliers should be able to give you advice on the required thickness and the centres of the screws used.

Turning the system on too early can cause the adhesives and grout to crack. The adhesive can become dry and crumbly if the electric underfloor heating is turned on prematurely before it has had time to set so it is very important that the adhesive and grout is given time to fully cure before turning on the underfloor heating. The drying time differs depending on the manufacturer but we recommend at least 2 weeks.

Another possible cause of cracked tiles is 'Thermal Shock'. This can happen if the underfloor heating is turned up high too quickly. The temperature of the underfloor heating should be turned up gradually, over several days by just a couple of degrees each day to an absolute maximum of 27 degrees Celsius


Top tip 2 - Using more self-levelling compound than expected

With any flooring that needs to be stuck down, such as tiles, vinyl, Amtico or Kardean you need a completely flat surface to lay the final flooring on.  Therefore, a flexible self-levelling compound is a must to cover the heating mat to give a smooth finish. In order to minimise the amount of self-levelling compound needed, it is vitally important to make sure that the electric underfloor heating mat is as flat as possible and stuck down securely. The floor must be very clean before laying the mats and underfloor heating cloth tape (provided in our kits) an be used to tape down the edges for the flattest possible finish.

The thickness of the self-levelling used differs depending on the brand but should be at least 3mm from the top of the heating element.


Top tip 3 - Oops, I've damaged the wires during installation

The most common reason that electric underfloor heating mats don’t work is because they are damaged during installation. This can due to being nicked with a tiling trowel, a tile being dropped on them or from other trades walking on top of the unprotected mat.

Avoiding low quality mats with fragile heating cable should help to minimise the risk of future problems. The Webtech cable is about 3.5mm thick so it is more reliable and robust without loosing its low profile. Other means of minimising risk of damage to your underfloor heating mat is by using a plastic tooth comb to lay the tile adhesive rather than a metal trowel. Also try and keep the time between installing the electric underfloor heating and the final floor finish to a minimum so that the heat mats spend less time exposed.

If there is a delay between installing the mats and the final floor finish it is worthwhile either:

  • Sectioning the area off to prevent traffic
  • Cover the mats with a suitable self-levelling compound. (We use Weber.floor flex in most situations)
  • Cover the mats with protective boards.

Important: Always do a resistance test just before laying the tiles to ensure that they have not been damaged.

 

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