Radiant Ceiling Heat

radiant ceiling heat

radiant ceiling heat
Visitas de Navidad Tour of Homes
Once again, the Socorro chapter of the American Association of University Women has arranged for visits to four custom-designed homes for the 2010 Visitas de Navidad Christmas Tour of Homes, from 2 to 5 p.m. on Sunday, Dec. 12.
Concrete Radiant floor heating slab thickness?

A double brick walled Church in the Northeast is redoing a basement bathroom. The old concrete was 6″ thick. The 7′ x 7′ (9′ high) room has unheated spaces on 5 of 6 sides (under an exterior porch.) Heating was formerly a steam radiator on the ceiling. Radiant floor heating is desirable with a view to install a thermal solar collector. Current information suggests that the insulated concrete slab should be no more than 4″ thick with pex tubing 2″ below the surface. As the concrete will be acting as a thermal storage mass as well as a radiant surface wouldn’t a thicker slab be desirable? How would a thicker slab also be made to be responsive to the changes in temp? Is double layering of the tubing ever done?

generally the pex is just put on to the insulation and the concrete poured over it. the concrete is normally 4″ thick and for a bathroom you should not need more than that the only reason to go thicker is to handle more stress like a road or garage floor. If you are busting out the old 6″ slab then just put the 2″ extruded foam down and 4″ of concrete over the top. If you go with thicker concrete the heat will just be slower (it will take longer to get warm and it will release heat for a longer time). I have never seen double layering, but it is pretty much standard in europe to have the tubes no more than 6″ apart. That should help the response time. Basements will usually have a pretty consistent need for heat so I don’t think you will need a rapid response on the heat.

Thermatile Plus Radiant Ceiling Panel – Installation Video