Installation made easy

Designed to give the perfect spread of heat when installed in any room beneath wood, carpet or vinyl flooring.

How to install ThermoSphere Foil

ThermoSphere Foil is ideal for floating floor finishes including wood, carpet and vinyl. You'll find everything you need about installing it, right here. Including a step-by-step guide and some useful tips.

Floor Options

Engineered timber floor finish

 

1. Engineered timber

2. Cushioning overlay

3. Foil

4. Cushioning underlay

5. Uncoated insulation board

6. Concrete substrate

7. Substrate insulation

Foil - Engineered timber floor finish on Concrete substrate with substrate insulation

Engineered timber floor finish

 

1. Engineered timber

2. Cushioning overlay

3. Foil

4. Cushioning underlay

5. Uncoated insulation board

6. Concrete substrate

Foil - Engineered timber floor finish on Concrete substrate

Engineered timber floor finish

 

1. Engineered timber

2. Cushioning overlay

3. Foil

4. Cushioning underlay

5. Timber substrate

Foil - Engineered Timber floor finish on Timber substrate

Bonded timber floor finish

 

1. Bonded timber

2. Acrylic adhesive

3. Cement board overlay

4. Cushioning overlay

5. Foil

6. Cushioning underlay

7. Timber substrate

Foil - Bonded Timber floor finish on Timber substrate

Carpet floor finish

 

1. Carpet

2. Carpet underlay

3. HDF overlay

4. Cushioning overlay

5. Foil

6. Cushioning underlay

7. Timber substrate

Foil - Carpet floor finish on Timber substrate

Vinyl tiles floor finish

 

1. Vinyl tiles

2. Acrylic adhesive

3. HDF overlay

4. Cushioning overlay

5. Foil

6. Cushioning underlay

7. Timber substrate

Foil - Vinyl tiles floor finish on Timber substrate

Key installation steps

Uncoated insulation boards

1. Substrate preparation

Testing 1

2. Testing

Sensor probe installation part 2

3. Installing floor sensors

Foil install 3

4. Installing Foil

Foil Overlay

5. Install cushioning overlay

Foil_02

6. Floor finish over Foil

Final testing

7. Final testing

Mesh Installation_wiring connections

8. Wiring connections

Timber floor

9. Commissioning underfloor heating

Made with you in mind

ThermoSphere Foil is the only one of its type to include a continuous earth braid and the first fully earthed foil in the UK to feature accessible cable loops making installation a breeze. The double layer of foil is specifically designed to protect the heating element and achieve an even spread of heat to the floor above.

Explore technical info

Foil install 2

Lifetime warranty

As with ThermoSphere Mesh and ThermoSphere Membrane systems, in the unlikelihood that you do experience a problem with ThermoSphere Foil, don't worry, you can relax knowing that each installation is covered by a lifetime warranty. All you need to do is register the warranty within 60 days of the installation date.

Register warranty

Testing 2

Our 3 top installation tips

Technical

Spare floor sensor

Always install the floor temperature sensor in a conduit to facilitate replacement should it be required. If you don't want to use a conduit, install a second floor sensor as a spare.

BT21 Sensor-1

Parallel installation

In bigger areas, 2 or more foil heating can be connected to the thermostat in parallel, as long as the total combined load does not exceed 16 Amps.

Low Profile

Floating Build-up

Tape floating layers of insulation and underlay boards together to prevent them moving while you install the rest of the layers on top.

Have an installation question?

If you have a question that needs an answer, our comprehensive FAQs page is packed full of them. However, we know that some questions are more complex than others so our team are always available to help.

 

Contact one of the team