ᐅ Is a High Ceiling Height Possible with Mechanical Ventilation Systems?

For our single-family home, we would like high ceilings (270cm (106 inches)). However, I would also like to have a mechanical ventilation system with heat recovery installed. I was just informed that with such a ventilation system, I either need to lower the ceiling by 15-20cm (6-8 inches) or integrate the ventilation system into the concrete slab ceiling.

If we lower the ceiling by 20cm (8 inches) and still want a ceiling height of 270cm (106 inches), we would have to plan for higher ceilings from the start. Due to the development plan restrictions (maximum external wall height 450cm (177 inches)), this would result in a very small knee wall on the first floor.

If the ventilation system is integrated into the concrete slab ceiling, I can no longer lower the ceiling and would have to plan the recessed lights (spots) within the ceiling as well.

I’m not very fond of that idea. Are there any other options for mechanical ventilation with heat recovery?

Wall and floor outlets (*brrr*)

And of course, you can also lower the ceiling with a controlled mechanical ventilation system installed in the concrete slab – for example, I have done this in the kitchen (before).

I’m still not sure if I can get used to floor outlets. The question then is whether wall outlets are any good. According to the architect, this doesn’t work if you hang a ceiling below afterwards, as it will block the airflow.

Great architect...

The valve naturally extends into the suspended ceiling.

Oh man, you're right. I honestly didn't think of that. ops:
Plan the controlled residential ventilation system inside the concrete ceiling, install a standard suspended ceiling below, and extend the outlets so they are within the suspended ceiling.
Is placing the controlled residential ventilation system inside the concrete ceiling something commonly and routinely done, or is it so unusual and complex that it would become expensive?

McEgg schrieb:
With mechanical ventilation integrated into the concrete ceiling, I can’t lower the ceiling anymore and would have to plan the lights (spotlights) to be recessed into the ceiling.

What speaks against that?