Hello all, I found this website when doing some research on a radiant hydronic setup that I have started building. I am looking for feedback and thoughts before I make any final decisions. I will just start with pictures to make things easier to understand as it is quite an unorthodox configuration for radiant heat.
2nd Bedroom (will be used as clothing storage instead of bedroom indefinitely)
Now to explain what's going on here: you are looking at a second floor of a concrete home, with 10" thick reinforced concrete floors. When speaking to local professionals, it seemed that I would have issues doing a radiant in slab installation and so I devised this system instead. It's 2" rigid foil backed foamboard insulation with 2x4's @ 16" spacing to create a subfloor. I was initially planning on running 1x 1/2" pex tube per field but I am worried that with this unorthodox system that I will not be getting the heat transfer that I would get if I was using a more traditional staple-up aluminum plate system. Obviously with the concrete floor that is not possible anyway, and so I wanted to see what considerations I should take before moving forward with the install. My plan is now to run Raupanel every 16" in between the fields with something underneath to butt it up against the hardwood.. The bedrooms will be 3/4" solid hardwood flooring, and I was hoping to run tile in the bathroom. Underneath the bedrooms is unheated garage space/shop rooms, which obviously pose an issue, but I intend to work a heating system into there shortly.
Open to any and all suggestions, feedback, and critique.
P.S. Here is a photo of a heat loss calculation I've done. I'm not sure if the results are accurate and would like somebody to double check them if possible.