My opinion is that it isn’t. If it can remove heat then it will cool the same as air AC.
However it comes with the problem of condensation everywhere. So those room radiators that give off heat in the winter will be dripping with condensation in the summer. As will all the system pipework that isn’t fully insulated and protected.
So that’s probably a lot of water running different places in the home.
Many of the highest efficiency heat pumps in the world are operating in Europe. How does water lower efficiency?
I was talking about cooling only.
How is water less efficient for cooling?
My opinion is that it isn’t. If it can remove heat then it will cool the same as air AC.
However it comes with the problem of condensation everywhere. So those room radiators that give off heat in the winter will be dripping with condensation in the summer. As will all the system pipework that isn’t fully insulated and protected.
So that’s probably a lot of water running different places in the home.