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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