Installation: FAQs
How should underfloor heating be installed?
Underfloor heating systems should be installed in a manner considered to be acceptable to building control and the local water undertaker.
If domestic supplies are to be installed in close proximity to underfloor heating, they should:
Be installed as a single run of pipework without any inaccessible joints below the underfloor heating insulation.
To prevent heat transfer or loss any supply pipework should be laid with a suitable gap maintained between the hot and cold systems and both wrapped in insulation.

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Disclaimer
Uncontrolled if downloaded. This is informative, non-statutory guidance and intended for general guidance purposes only; it is subject to change.
Compliance with this information should not be relied upon as guaranteeing no enforcement action will be taken by water undertakers. Water Regs UK accepts no liability for loss, indirect or consequential loss arising from or in connection with this guidance document.