Doing a little homework on hydronics in the South. It can be desireable to not heat the slab be cause of our sudden temperature swings, 82F yesterday and 58F for today. Looking at some info from Homepower, 110F for solar hydronic floor heating and 120F for radiant wall. With my overall floor plan I'm considering a radiant common wall on the interior and loft floor/kitchen ceiling to minimize losses to the exterior. And maybe 2 fan coil units to speed up heating when the sun is really shining.
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