Oxford study proves heat pumps triumph over fossil fuels in the cold::Published Monday in the scientific journal Joule, the research found that heat pumps are two to three times more efficient than their oil and gas counterparts, specifically in temperatures ranging from 10 C to -20 C.
Ah yeah that’s a different story then. However I’ve never heard of in-floor cooling before. I wonder how effective it would be since heat rises? I think you’d just have a cool floor and hot muggy air. Also the floor would condense water constantly so your floor would be slippery and if you have carpet it would be wet / damp constantly.
It’s a thing but you take really can’t cool down a lot due to the reasons you mention.