You can build a silent-enough forced convection condenser to put in the room and put the noisy part away, without water, and cheaper than the passive convection

You can build a silent-enough forced convection condenser to put in the room and put the noisy part away, without water, and cheaper than the passive convection water setup. For cooling you can't use the typical passive convection radiators anyways, so might as well invest their cost into making the cooling and heating refrigerant coil silent... Also c.f. a normal domestic fridge: no noise beyond the piston compressor.