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Leesburg, Ohio | I'm not a thermo-dynamic engineer, so i cannot say what the upper limit of heat transfer a concrete floor is capable of.
However, it seems to me that a concrete floor is the largest heat radiator you could possibly have in a given size building.
What concrete lacks in transfer capacity/sqft, compared to an iron or copper or aluminum radiator, is more than made up for in sheer size.
That is why the recovery time is so fast (in our experience).
I have never seen a floor that is not capable of transferring adequate heat to heat the building, if the entire floor is the radiator.
So, I go back to my original statement: heater size depends on heat loss. And of course, that depends partly on building size, doors, insulation, and climate.
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How to do Floor Heat?
