I am ready to install the underfloor heating but realised that the floor sensor cable is too short. Can the floor probe or power supply cables be extended?
When positioning the floor probe, hot water pipes in the floor or any draught-prone places (such as external doorway) should be avoided as this may affect the thermostat.
If the floor probe or power supply cables are too short upon installation, both of them can be extended by a qualified and certified electrician. All electric connections must be completed by a qualified electrician, including extending the floor probe or power supply cables.
Both cables require a different type of extension. The power supply cable can be extended with a suitable twin and earth cable. The floor sensor can be extended with a bell wire. Please contact a certified electrician for detailed advice on extending the cable.