They're very big in the northern parts of Australia.

Try (split system heat pump site:.au)

The inside unit looks like a skirting heater but mounts higher on the wall.
The compressor is outside so much quieter. Of course they don't suit the
ducted systems used in N America.



Ah, we can get those here, they're called mini splits, always struck me
as shockingly expensive though, even surplus they're not any cheaper
than a standard full sized split system.