Steve;
We live an hour SW of Atlanta so we get weather similar to yours. I planned to put radiant heat in my basement bathroom. The floor has to be cut out anyway because the plumbing is all in the wrong places for the larger bathroom.
The biggest headache so far is trying to find the high density XPS to put under the new concrete. Neither Lowes nor Home Depot have been helpful here. None of the specialty suppliers in Atlanta know what I am talking about which leads me to believe radiant floors aren't common in the south.
I will probably just go back to regular concrete. Twenty years ago things would have been different. I am getting to the age where I don't enjoy home projects and the thought of yet another system to maintain is discouraging.
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