That’s the standard in North America as well for single family homes or even condo buildings where they might put the condenser on the balcony or use a heat pump with a central loop.
I would guess these are popular in New York because they have many many old buildings with central heat and it’s easier to punch a hole in the wall then hang somethings off the building 8 floors up. Also easier to work on the unit.
They also look huge, in Europe the standard is to have an outside unit and an inside unit.
That’s the standard in North America as well for single family homes or even condo buildings where they might put the condenser on the balcony or use a heat pump with a central loop.
I would guess these are popular in New York because they have many many old buildings with central heat and it’s easier to punch a hole in the wall then hang somethings off the building 8 floors up. Also easier to work on the unit.