Heat pumps on walls, balconies, roofs, and chimney stacks in Marseille

I have a Daikin Heat Pump installed on one unused chimney stack on our building and it has been working well since 2008

I thought it was a rare installation, but not at all, as I discovered many like these in Marseille, during my last week of vacation there; It is in the south of France where the climate is warmer, so I guess most of them are actually air conditoning units 

DAIKIN Heat Pump yearly check up

Tuesday, we had our yearly Daikin heat pump check up, performed by the same company who did its installion back in 2008
With the rain, the technician decided not to go up on the roof and did not see the external main unit, and we will have to re-schedule an appointment for that part; He did clean & check the 5 internal units though, which is half of the job