Installation location of central ventilation unit

Hello everyone,

we are installing a central ventilation system in our new build (gable roof house, 182 m², converted attic).

Since we have a carport next to the utility room, our architect does not want to install the central ventilation unit in the utility room --> intake of exhaust gases, stagnant air, etc.

Instead, the system is supposed to be installed in the converted attic. We have some concerns about the noise and the sound transmission through the building (the children's room is in the area under the attic).

What is your opinion on this topic?
How do you access the filters of the intake pipe on the roof?

Thank you in advance

Filters are located inside the device. Would have no problem installing it in the attic, provided it is within the heated envelope. Saves you ugly grilles on the facade.

You can also run the intake pipe across the carport, or underneath it, or even attach another [LEWT] right away. I wouldn't put it in the attic...

Find the attic is the ideal installation location if it is not a cold attic. The devices hardly make any noise anymore, let alone any vibrations. Exhaust air then through the roof, supply air at the back of the facade.

In most cases, you have an unheated attic, so that’s already out of the question. The devices are also loud, at least compared to other devices in the house. All the ventilation pipes have to go to the ground floor and the upper floor, need space and cost... In a bungalow with a warm roof conceivable, in a normal single-family house in my opinion unwise.

Our ventilation system will also be located in the attic. I don’t see where the pipe problem lies? The outlets are all in the ceiling, so the upper floor pipes are already on the correct floor slab and the ground floor pipes only have to go through the upper floor once. If installed on the ground floor, all pipes would have to go through half of the ground floor and the upper floor pipes would also have to go through the upper floor again. What would be gained there? The space saved in the technical room might then be used for a wine cooler :) In contrast, we lose some space in the attic, but that doesn’t matter, we have plenty of that and it’s not really usable too far from the hatch anyway, because there is only 1.40 m "standing height".