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Get ready for winter: ThermoSphere Electric Underfloor Heating

Publish date: 24th September 2020

The electric underfloor heating system with innovation at it’s heart available here in btw

ThermoSphere Mesh

Inspired since it’s inception, ThermoSphere Mesh has been at the forefront of product innovation, it was in fact the first electric underfloor heating mesh system to feature a fully self-adhesive element with guarantee for life.

It was also the first mesh system to introduce a 200W per metre square output capability. Not only that, but it was first in it’s class again to feature a twisted double core heating cable, designed to reduce stress on the cable to which it remains the only one in the market, today.


Underfloor heating installation made easy

ThermoSphere Mesh is fully self-adhesive which speeds up installation making it easier for self-leveling and tile fixing.

Compatible with every floor finish

ThermoSphere Mesh can be installed in any living space (even in wet rooms!) and under almost any floor finish when installed with the appropriate accessories.

Protection and reliability throughout

The unique, twin twisted stress free cable construction creates a longer lasting cable with zero electromagnetic field.

Enhance & maximize your living space

The beauty of electric underfloor heating is that it allows you to claim back your precious wall space which your radiators have previously stolen.

The true early adopter in underfloor heating

Mesh system has debuted features which have been adopted by many of the prominent brands in the electric underfloor heating industry.

ThermoSphere Membrane

ThermoSphere Membrane is a combined electric underfloor heating system, consisting of a decoupling membrane layer which encases our innovative electric heating cable with guarantee for life. 

Our unique TwistedTwin cable technology designed to reduce cable stress, creates a safer, easier to install and longer-lasting cable superior to anything else on the market, backed up by a life-time guarantee.

Simply press the heating cables into the membrane at variable spacing depending on your required output (w), and roll out over the space you wish to heat.


Simply install in one day

It’s simplicity in design means that a ThermoSphere Membrane electric underfloor heating system is typically installed in just one day.

The frontline of innovation

It can be installed on walls as well as floors and sealed with by using the ThermoSphere waterproofing kit.

Perfect for peace of mind

The uncoupling membrane layer neutralizes the stress caused by different rates of expansion and contraction in a tiled floor, this minimizes the risk of tile delamination and cracking, meaning once installed it stays installed.

It’s built for bathrooms

Its advanced waterproofing properties make it perfect for kitchen and bathrooms. It can be installed on walls as well as floors and sealed against moisture & liquid by using the ThermoSphere waterproofing kit.

At btw, we are always here to assist you throughout your selection process. Visit one of our 6 showrooms across Ireland and let our team guide you through this exciting time!

You can find us at:

btw Naas – Unit G1, M7 Business Park, Naas, Co. Kildare, W91 R3WC

btw Sligo – Finisklin Rd, Cartron, Sligo,  F91 V4PV

btw Kilkenny – Loughboy Industrial Estate, Ring Rd, Kilkenny, R95 TE2D

btw Drogheda – Donore Business Park, Unit 15, Donore Rd, Drogheda, Co. Louth, A92 KW81

btw Sandyford – Unit T5, Birch Ave, Stillorgan Business Park, Dublin, A94 P767

btw Waterford – Unit 4, Ivory Retail Park, Tramore Rd, Co. Waterford, X91 RW35

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