Electric Underfloor Heating Diagrams
Electric installation reference
Use these diagrams to understand typical electric underfloor heating layouts, cable placement and floor-sensor positioning. Select any diagram to open the original image at full size.
Important: These diagrams provide general guidance. Always follow the instructions supplied with your chosen system, and use a qualified electrician for the final electrical connections.
Diagram 1
Typical Heating Layout and Controls
A typical electric underfloor heating cable installation showing the thermostat, floor-temperature sensor and key floor build-up details.
Cable placement
Typical Floor Build-Ups
These cross-sections show two common ways of positioning the heating cable and floor sensor within the floor construction.
Diagram 2
VC/VCD Cable Beneath Floorboards
The heating cable and floor sensor positioned beneath timber floorboards and above the insulation layer.
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Diagram 3
Cable Fixed with TME Installation Tape
The heating cable and floor sensor installed within screed or concrete and secured above insulation using TME installation tape.
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Diagram 4
Heating Cable and Floor Sensor Beneath Tiles
This simplified cross-section shows the heating cable and protected floor sensor positioned within flexible tile adhesive beneath the tiled finish.
The sensor should sit between adjacent cable runs so that it can measure the floor temperature accurately.
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Use our downloads library for the instructions supplied with your system, or contact us if you need help identifying the correct installation detail.