Thermosphere Membrane is an advanced electric under floor heating system, comprised of a decoupling membrane layer which encases the innovative TwistedTwin cable. The unique TwistedTwin cable is designed to reduce stresses on the cable, to be a safer and easier install, to be a longer lasting cable superior to other products on the market.


Backed by a life-time guarantee allowing peace of mind for the installer and the end user. Simply press the heating cable into the membrane at variable spacing depending on your required output (w) and roll out over the space you need.


Underfloor Heating

The membrane is designed to hold ThermoSphere membrane heating cables at variable spacing depending on the required output. Output of 130W/m² (3 dimples) or 195W/m² (2 dimples).

Uncoupling Technology

Neutralises the stress caused by different rates of expansion and contraction in a tiled floor. This minimises the risk of tile delamination and cracking.

Superior Vapour management

The studs and fleece backing in the membrane allow water vapour to escape effectively. This means you can save time by tiling over a substrate that is not fully cured.


A fast and easy way to create a heated wet room. ThermoSphere membrane can be installed on walls as well as floors and sealed with the ThermoSphere waterproofing kit.

Load Distribution

Heavy loads are no problem for floors that include a layer of ThermoSphere membrane. The stud structure transfers the load to the sub floor without risking cracks. Suitable for use in high traffic areas.

Higher output for instant heat and fast drying floors

Use 2 dimple spacing for an output of 195w/m2. This output Is best suited for higher demand areas and wet rooms.

Lower output for well insulated areas

Use 3 dimple spacing for an output of 130w/m2. Ideal for lower demand areas such as hallways and well insulated buildings.  
  • Thermal Construction Boards (Coated)

    Multipurpose lightweight construction boards that are perfect for the application of tiles and cement based screeds. They are manufactured using high density extruded polystyrene which provides excellent insulating properties. The extruded polystyrene core has a factory applied reinforced cement coating which provides excellent impact strength and fire resistance


    Product Code:        6mm – TA102

    12.5mm – TA104

    • Multi-Purpose Tilebacker Board
    • Essential with Electric underfloor heating
    • Easy to use
    • Suitable for walls & floors
    • Lightweight
    • Waterproof
    • High Durability
    • Ideal for wet and fully submerged areas
    • Easy to cut
    • Available from 6mm – 70mm

    (6mm & 12.5mm stocked other sizes to order)


  • Thermotouch 7.6iG

    Have full control over your electric underfloor heating system with the new and improved fully programmable thermostat. Thermotouch 7.6iG 7-day programmable thermostat is also available in a Wi-Fi enabled model and comes with an ice white or piano black glass fascia. * Wi-Fi variant is to order only.



     Product Code: CZ5220


     Features & Benefits

    • 7-day, 6 event heating schedules
    • Sleek glass fascia design
    • White LED backlight
    • Easy to use touch panel controls
    • Floor and ambient temperature sensor

    What’s included

    • 1 x Thermotouch 7.6iG
    • 1 x Installation guide
    • 1 x 3m Floor temperature sensor probe
    • 1 x 2m Sensor conduit
    • 2 x Fixing screws
    Data Sheet User Guide
  • Vario PRO Matting Cut to size 1M²

    Vario ProMat is a patented polypropylene uncoupling membrane specifically designed to hold Vario PRO underfloor heating cables.

    On the underside is an anchoring fleece to ensure the membrane bonds to the substrate and provides an uncoupling layer for tiled floors


    Product Code – THERMVPCUT


    Price: £15.30 Inc Vat
    £12.75 Ex Vat

Simple one day install

It's simplistic design typically allows for the underfloor heating system to be installed in just one day. Our recommended installation requires less steps than other underfloor heating systems allowing you more time to sit back and relax or focus on other aspects of the project.

The frontline of innovation

The fast and easy way to create heated wet rooms. ThermoSphere electric underfloor heating membrane can be installed on walls as well as floors and sealed by using the ThermoSphere Waterproofing kit.  

Perfect for peace of mind

The uncoupling membrane layer neutralises the stress caused by different rates of expansion and contraction between different substrates on a tiled floor, this minimises the risk of delamination and cracking meaning once this system is installed it stays installed.   The perfect floor heating solution    

Built for bathrooms

ThermoSphere membrane electric underfloor heating is the easiest way to create a heated wet room. Its advanced waterproofing properties make it perfectly suited to kitchens and bathrooms. It can be installed on walls in addition to the floors and sealed against any moisture and liquid by using a waterproofing kit.  

Guaranteed for a lifetime

The ThermoSphere membrane system comes with a lifetime guarantee. Allowing you to relax knowing in the unlikely event that you do experience a problem with our membrane system that we have you covered.    

The Installer's UFH choice

The installer's electric underfloor heating choice for its improved protection and ease of installation. We are confident that you will love it, ThermoSphere installers do not leave the membrane road once they are upon it.