Posted 11/8/2012 02:54 (#2685291 - in reply to #2683414) Subject: RE: Radient heat retro in older home
NW Washington
Check this You Tube of a This Old House pbs-tv series. They are installing heat tubes to a wood floor by putting the tubes under the floor. http://www.thisoldhouse.com/toh/video/0,,20365330,00.html
Google will find more info on this subject too.