Concrete core activated slabs and wall

Hello and thank you for this interesting forum.

I have a question.
How is it possible to model a concrete core activated wall or slab?

Thank you.
Marcello

@Marcello, so this is a hydraulic radiant system.

Here is an example: http://hydrashare.github.io/hydra/viewer?owner=chriswmackey&fork=hydra_2&id=Custom_Radiant_Heating_Cooling_System&slide=0&scale=1&offset=0,0

Thank you very much!