The next phase for our Geo-thermal radiant floor heating system is to install the tubing below/in the concrete. It is winter here in Kalamazoo so we had to spend a couple of days thawing out the ground below the concrete. After the ground had the frost removed, we installed a foam/vapor barrier seal. This foam acts as an insulation between the ground and the home as well as the vapor barrier we need for our radon that is required in this county. Above the foam (not sheet goods - roll goods) we installed wire mesh to attach our geothermal lines to. This keeps the water lines from rising up to the top of the concrete when we pour. It also keeps the water lines in the position that we placed them in when we set them.
We are also heating the upstairs with the geothermal radiant floor. Since we are not installing the tubes in a slurry on top of the OSB, we have to attach them under the subfloor and then put an insulation blanket under them. Individual areas all terminate at different points or manifolds. From there we can control the heating and cooling of specific sections of the home.
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