Is the floor insulated?
For radiant floor heating, I don't think you'd have to take down the drywall. There are MDF looking panels for the floor with the channels already routed in for the heating lines to run in that you could overlay the floor with. Have seen them used on TOH or Hometime, can't remember which. Probably 3/4" thick and seems like it had a radiant barrier bottom to it. Might have to put some sort of thin overlay over that to protect the tubing. Would lose maybe 1 1/4" of height in the room. Then re-lay your flooring. If you currently have carpet, this would be the easiest way to do it. If wood floor, tile, or something else, it might be harder. Jim.
Home of Irish Setter Rescue of North Texas
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