I have installed cooling coils for natural cooling throughout my ceiling (120m2) that are obviously regulated to prevent condensation.
I'm also thinking of experimenting with running heat through the coils to get ceiling heating.
Now I've reached the stage where it's time to choose a surface layer for the ceiling, and of course, I want to maximize the cooling/heating output, i.e., a material with as poor insulation as possible.
I don't know what to choose, wood paneling/gypsum/OSB, etc.
I'm also thinking of experimenting with running heat through the coils to get ceiling heating.
Now I've reached the stage where it's time to choose a surface layer for the ceiling, and of course, I want to maximize the cooling/heating output, i.e., a material with as poor insulation as possible.
I don't know what to choose, wood paneling/gypsum/OSB, etc.
Yes, that would be the absolute best, unfortunately it's a bit too impractical and hard to make it look nice.saturnus said:
lordi
You need to have something as a finish, it doesn't look very good right now.
Using passive cooling in the ceiling is not new and well tested.
We previously had ceiling heating in our house. It was popular in the 70s. It consisted of foil with electric coils. The foil was stapled to the ceiling. Then there was a stretched woven ceiling about 30mm below this. It worked reasonably well as a heat source.
The theory in the 70s with ceiling heating was that it would provide radiant heat from the coils, and it would primarily hit the head of those in the room. By "feeling" the heat from the ceiling, it would lead to lowering the room's temperature (there was a thermostat in each room). It was believed that the head was the most sensitive to heat, so by heating it from above, it could save energy.
I doubt that the pipe coils get as warm as the electric coils, so the question is whether there's any significant radiant heat. And perhaps radiant heat is needed to get through the woven ceiling.
The theory in the 70s with ceiling heating was that it would provide radiant heat from the coils, and it would primarily hit the head of those in the room. By "feeling" the heat from the ceiling, it would lead to lowering the room's temperature (there was a thermostat in each room). It was believed that the head was the most sensitive to heat, so by heating it from above, it could save energy.
I doubt that the pipe coils get as warm as the electric coils, so the question is whether there's any significant radiant heat. And perhaps radiant heat is needed to get through the woven ceiling.
Hmmm, actually you should have had aluminum foil above the pipes so that the heat radiation is reflected downwards. As a previous post suggested, one could make a thin ceiling of permeable fabric, just make frames of appropriate size and then stretch the fabric over them. It also provides some sound damping.
Hempularen: what a wacky idea, it's the feet that keep getting cold all the time, so if you overheat your head and lower the temperature, it gets even colder for the feet?
I guess that's why underfloor heating became fashionable instead.
I guess that's why underfloor heating became fashionable instead.
hempularen:
I am aware that there won't be any "radiant heat," the upper floor doesn't need much heating since it is very well insulated and a lot of heat comes from the lower floor.
But there are systems for waterborne ceiling heating today http://www.smartplasticsystems.se/losningar/kombinerad-varme-och-kyla-i-undertak/
NetNut:
My pipes are in a sparse panel with underfloor heating plates, so in my case, a foil wouldn't do any good.
But the fabric idea sounds good to me.
Otherwise, what do you think about a thin renovation plasterboard that you screw tightly against the plate, sort of like a "stove" I think, where you want good contact to the heat/cooling source.
I am aware that there won't be any "radiant heat," the upper floor doesn't need much heating since it is very well insulated and a lot of heat comes from the lower floor.
But there are systems for waterborne ceiling heating today http://www.smartplasticsystems.se/losningar/kombinerad-varme-och-kyla-i-undertak/
NetNut:
My pipes are in a sparse panel with underfloor heating plates, so in my case, a foil wouldn't do any good.
But the fabric idea sounds good to me.
Otherwise, what do you think about a thin renovation plasterboard that you screw tightly against the plate, sort of like a "stove" I think, where you want good contact to the heat/cooling source.
In that case, you need something that conducts heat; plaster conducts heat better than wood but is still relatively sluggish. If you want to use renovation plasterboard, the heat conduction/distribution would be better if you first attach a 2-3mm aluminum plate and then the plasterboard underneath it.