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Originally Posted by Lakegeezer
"...One of the downsides we were told is that during the spring and fall, the heat can't keep up with warm days and cold nights since it takes days to get the radiant through the substrate and wood floors. Anyone have experience with that...?"
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The problem may be the wood floor.
If my woodstove radiates too much heat in one particular direction, I'll shield that side of the stove with furniture or some other object.
Wood has a fair insulating quality—"R"-value—as does carpeting. I'd suggest a decorative, conductive
terrazo floor finish over the substrate. (Terrazzo is made of marble chips set in mortar, then polished.) Terrazzo is also cooler in the summer when the heat would be expected to be off.
It's possible that the thermostat setting may be set lower without intervening insulation. If my
feet are warm, then
all of me is warm.
As for weekends, why not try programming the heat for only
Friday and Saturday? It will be slowly returning to "economy" temperatures after you've left on Sunday.
Disclaimer:
My experience with radiant heat was in the days when cheap copper pipe was used in the substrate.
