On Fri, 03 Aug 2007 18:55:59 -0500, DanG wrote:

You don't tell what type of radiant floor you are covering.

If it has to do with ceramic tile, this is the absolute best site
on the internet
http://www.johnbridge.com/

I didn't look very hard because I don't know what you need, but
here is radiant story from that site:
http://www.johnbridge.com/vbulletin/showthread.php?t=36020

It's going to be radiant tubing with ceramic tiles. Thanks for site.