Space requirement in HAR for central ventilation system

As I already wrote above, everything can also be much more compact... here are:

- Condensing boiler
- Solar station
- 300L storage tank
- Washing machine
- Dryer
- Controlled residential ventilation
- ZB34S Hager control cabinet (approx. -1x1m)
- Network corner for 24 sockets

and of course all utilities including meters gas/water/electricity/telephone

All on 4.5 sqm... I wouldn't recommend the size but it works...

Wow..is awesome But you’re only inside to do laundry. Luckily, there’s something like [Hauswirtschaftsraum]. Better than nothing. And do you sometimes hear the ventilation system? I see, it’s from the company Wolf. Or am I seeing that wrong? Regards

Yes, I also wanted those at first... but then bought one size bigger after all...

A few pictures of my utility room
Before/After

Very tidy, the room. That reminds me that I should declutter the utility room again.