A chilled ceiling in a single-family house is as new and innovative as the wall heating in the bathroom for covering heating output. Namely, not at all. These are partly tried and tested methods. Just like an air well for [Controlled residential ventilation]. Nothing new, nothing exciting, just particularly unknown or unwelcome in the world of companies because it requires updated expertise. When you see how companies already struggle with the design of underfloor heating, that should not surprise you.