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  • The underfloor hearing game has moved on a lot recently.

    You can get it fitted into 22m chipboard.

    https://www.underfloorheating.co.uk/profi-chip

    So you just replace your floorboards with it.

    You'd need advice about insulating enough underneath without risking rotting floor joists.

  • Definitely want to keep the existing floor, but the joist fitting version looks like it might be suitable for that

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