I am looking to retrofit a hydronic radiant heating system to the first (ground floor and basement of my house. For the first floor the plan is to install the system under the subfloor by snaking the tubing between the joists. The basement floor is slab concrete without any insulation below the slab. I don't have any ceiling height to lose so adding insulation does not seem like a good idea. Further, there is a mild moisture issue with the floor so this just seems like a bad idea.
I was thinking of running additional tubing in the ceiling. I am completely unfamiliar with the concept of radiant ceiling heating and not sure if it can be combined with radiant floor heating. Can I essentially run one set of hydronic radiant heat tubing to heat the ceiling of one room and the floor of the room above it.