I'm thinking of buying a concrete shell for an apartment. The floor above is residential, and their sewage and other pipes are penetrating their concrete floor ( my ceiling ). I have to construct a false ceiling to hide all this, but wonder if I can put copper piping against the ceiling to grab the heat off their floor to heat my water, or, to use the entire formed cavity to heat air which I can then circulate to the partitioned rooms I create.
Would this work? It will be about 150 m2. I presume the apartment owners above me would be heating their apartment.