Floor tiling with thermal under tile?

Soldato
Joined
13 Jan 2003
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23,628
As part of our kitchen build we’re looking at replacing the wood floor with a tiled floor.

Normally for underfloor heating a thermal tile is used, but has anyone just used the thermal under tile without the heating elements to reduce heat loss through the scree floor?
 
Soldato
Joined
13 Jan 2004
Posts
20,929
I think OP is trying to weigh up underfloor heating with just floor insulation.

It really boils down to the objective. Do you want to warm the room? Want to warm the floor? Reduce thermal losses through the floor?

A concrete substrate
isn't going to be a particularly large source of heat loss. You're unlikely to be gain much by insulating between the subfloor and tile. If you want the flooring warm you'll need direct heating (wet or electric elements) or to choose a flooring product that feels warmer to the touch. That could be picking a specialist or particular material tile or looking at timber, engineered or composite flooring products.
 
Soldato
OP
Joined
13 Jan 2003
Posts
23,628
My thinking is without the underfloor heating elements. Scree, thermal tile and then normal tile. So the earth in the room isn’t lost though the floor.
 
Caporegime
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21 Oct 2002
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Concrete is a Huge heatsink.

Unless you get a material like vinyl or cork it Will still feel cold even if you only insulate. My kitchen floor is overkilled with a 30mm later of Marmox in which ufh is ontop of and normal tiles.

Ufh shouldn’t add any height and makes a huge diff to feel of room. Mine takes 7mins for floor to warm up 200W/m.

Because it’s so well insulated it’s not expensive to run either and makes a huge difference in the winter
 
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