Thermosphere electric underfloor heating mat shown unrolled with its brown cardboard packaging box and a black cable on a white background.
A blue and white grid-patterned floor heating mat, partially unrolled to show the serpentine yellow-green electrical trace, with a black cable running along the bottom, photographed on a solid white background.
An exploded view diagram of a modular wood deck system, showing stacked layers including a white top tile, gray slats, blue and green underfloor heating mesh , a dark backing board, a light wood plywood base, and wooden support beams on a white background.
An exploded stack diagram of layered flooring or tile materials on a white background, showing thermosphere underfloor heating mesh above insulation panels on top of tile adhesive and then the susbrate at the bottom.
Underfloor heating system diagram showing a blue grid floor mat with white and yellow heating pipes, layered over a light green insulation board and finished with a dark gray ribbed protective cover.
A radiant floor heating system shown installed in a large light-colored tiled living room and kitchen. The heating mat features a gray outer border, a pale yellow center, and multiple rows of red and blue heating elements.
A frameless glass shower door installed in a tiled bathroom shower enclosure, shown with a transparent panel overlay highlighting the glass profile and hardware details. Cutout on the tiled wall and floor shows the Thermosphere heating mesh behind.
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Thermosphere electric underfloor heating mat shown unrolled with its brown cardboard packaging box and a black cable on a white background.A blue and white grid-patterned floor heating mat, partially unrolled to show the serpentine yellow-green electrical trace, with a black cable running along the bottom, photographed on a solid white background.An exploded view diagram of a modular wood deck system, showing stacked layers including a white top tile, gray slats, blue and green underfloor heating mesh , a dark backing board, a light wood plywood base, and wooden support beams on a white background.An exploded stack diagram of layered flooring or tile materials on a white background, showing thermosphere underfloor heating mesh above insulation panels on top of tile adhesive and then the susbrate at the bottom.Underfloor heating system diagram showing a blue grid floor mat with white and yellow heating pipes, layered over a light green insulation board and finished with a dark gray ribbed protective cover.A radiant floor heating system shown installed in a large light-colored tiled living room and kitchen. The heating mat features a gray outer border, a pale yellow center, and multiple rows of red and blue heating elements.A frameless glass shower door installed in a tiled bathroom shower enclosure, shown with a transparent panel overlay highlighting the glass profile and hardware details. Cutout on the tiled wall and floor shows the Thermosphere heating mesh behind.

ThermoSphere Self-Adhesive Mesh 150W/m²

ThermoSphere
Coverage: 1.0m²
Price:
£49.99

What goes with this?

Accessories and essentials for this job — add what you need.

  • ThermoSphere T-MO Thermostat

    ThermoSphere 16 A thermostat with floor sensor included — check the load suits your system

    £119.99inc. VAT

  • ThermoSphere Concrete Insulation Board for Underfloor Heating

    Insulation board under the heating to cut warm-up time

    From £6.49inc. VAT

  • ThermoSphere Flexible Conduit for Underfloor Heating Cable

    Conduit for the floor sensor, laid between the heating cable runs

    From £11.99inc. VAT

  • ThermoSphere Perimeter Insulation Foam 80mm x 50m

    Perimeter expansion strip and thermal break for the heated floor

    £49.99inc. VAT

Description

ThermoSphere Self-Adhesive Mesh 150W/m² works perfectly as a primary heat source in most property types, providing full underfloor warmth beneath ceramic, porcelain and natural stone tiles.

Key Benefits

  • Fully self-adhesive mesh sticks wire side down, protecting the heating cable during installation
  • TwistedTwin heating cable construction with full earth protection
  • IP68 rated — safe in bathrooms, showers and wetrooms
  • 3.5mm thick mat with a low-profile LayFlat cold tail
  • Can also be used under tiled walls
  • Available in 19 sizes from 1.0m² up to 24.0m²

Applications

Suited to bathrooms, kitchens, hallways and living areas across most property types where the mesh needs to act as the room's main heat source under a tiled finish.

Performance & Features

The self-adhesive backing sticks the mesh directly to the substrate wire-side down, protecting the cable while tile adhesive or self-levelling compound is applied over the top, giving a fast, secure installation for larger areas too.

Compatibility

Requires a compatible ThermoSphere thermostat, such as the T-MO, for control. Fit over a rigid, stable substrate suitable for tiling.

Supplied by Millcot as part of our full ThermoSphere underfloor heating range.

Downloads

FAQs

Can this be my only heat source in a bathroom?
Yes, 150W/m² is designed to work as a primary heat source in most well-insulated UK property types.

What size do I need for my room?
Measure your usable floor area (excluding fixed units like the bath or WC) and choose the closest matching or slightly smaller coverage size.

Can it go under tiled walls too?
Yes, the mesh can also be used under tiled wall applications.

Is it safe for wet areas?
Yes, it's IP68 rated and suitable for bathrooms, showers and wetrooms when installed correctly.

Do I need a thermostat?
Yes, a compatible ThermoSphere thermostat is required and sold separately.