Thanks for your compliment about our work!

There are no radiant diagrams that I know of. Even if there were, there’s no guarantee that the installers would’ve installed the pipes accordingly…

So what to do? You can buy a cheap infrared thermometer (Google that term) and turn on your heat. As the floor starts to heat up, slowly wave the thing over the area you want to make your channel in, and use masking tape to mark the hottest points. Those should be the pipes! (I learned this trick from Jerry Rothfeld, an expert in Eichler radiant systems).

Good luck!

I did not see an answer to the difficult radiant cut floor question which is driving us batty with curisosity. We would like to move to a “true” island, electric cooktop and move the ovens to the wall with the electrical fee. We presume we must cut the tile and slab to make a groove channel for a new electrical feed then patch. Is there a schematic for copper radiant pipes in a 1962 Willow Glen large atrium model? Is there any reason to think builders ran pipe directly under the original ovens and cooktop anyway? Thank you – your work is beautiful!