Hi looking at having a developer build a house, I would like under floor
heating and they want to put it in the 100mm cocrete slab. Can any one give
me their thought on this, pros and cons etc.
I'm no expert, but this sounds like a giant storage heater. So long as the
100mm slab is well insulated underneath, with say another 100mm of
insulating material. As a new build water pipes are possible and probably
the best solution, if you want a rapid rise in temperature when the heating
comes on then place 50mm of high density insulation over the 100mm slab and
the heating pipes on top of this in a screed or something to hold the pipes
in place and support a floor.
There are a few good websites that detail how different installations are
Underfloor heating really isn't suitable where you rapid temperature
rise with no pre-planning. To get the best out of it, it really needs
controls specially designed for the lag/inertia inherent in its use.
In a newbuild highly insulated house, the interia is going to tide
you over periods like going out to work each day anyway.
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