Originally Posted by bansil
Go to expeditionportal.com
Search for radiant floor,several awesome builds using copper tubing,routed into floor substrate...very cool info
You might want to use PEX rather than copper. Upside about PEX (other than the abilty ti withstand movement better than copper) is that it's not fond of making tight bends. Which goes well with the turn radius required in radiant floor heating. It's pretty close.
has some of the best installation instructions I've seen on their web page under "Do It Yourself".