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We're about to embark on something similar, but can't afford the floor built up of screed on top joists and frankly don't think 130yr old joists deserve it - so are going down the less optimal (heat sink wise) aluminium plate route. using routed chipboard with pipes and plates sat in grooves. Buuuut, i've read lots of opposing views on efficiency of the aluminium system vs radiators etc which suggest it may not be as efficient.
if you can, go screed - or even some of the products which are castellated trays and you pop SLC on it. if we had the option, i'd do that.
the other stuff to think about is is about how you loop it into your plumbing and what controls it
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Is there much else to consider?
Floor covering and the potential requirement for another source of heat. Wooden floor boards mean you'll never get that warm cosy feeling in winter without an additional source
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terlg
hugo7
@%~}
Anybody got much experience with underfloor heating?
I’d like to not have to waste wall space on rads and I can just afford it if I do the bulk of the work myself. Plus it’s cheaper to heat the house and gives a more even heat.
The big question is whether I put the metal tray system between the joists or lay a biscuit screed over the pipes.
Screeding obviously has the potential for a huge amount of mess but the house will be empty when I do it anyway.
Is there much else to consider? It looks reasonably straightforward