Well, strictly speaking, the ceiling outlets must also be coordinated with the furniture arrangement.
Distances to the taller cabinets, not in the area where people stay underneath, etc. should be observed.
Exactly, and I think those are two important rules regarding the positioning of ceiling valves.
So everything has pros and cons!
I see it the same way, ultimately a ceiling valve is the least noticeable for me since I rarely look at the ceiling. Also in terms of positioning, from my point of view, it is somewhat easier with ceiling valves than with wall or floor valves. For floor-to-ceiling windows, a floor valve in front of the window is of course optimal, as most likely no furniture will be placed there. But in our case, for example, a child’s room only has skylight windows, so a floor valve would be unfavorable here. And if you don’t use room-high furniture, then a ceiling valve can possibly even be above a cabinet (provided there is enough space below the valve).
If I understood correctly, the gap is somewhat larger with the use of controlled residential ventilation than normal?
As an alternative to enlarging this gap, we were suggested a frame ventilation (on the interior doors). Apart from the aesthetics, this variant may offer some advantages after a brief initial research (no impairment of soundproofing, no additional light through the larger gap). I still have to read a bit more about it.
Regarding the "technical planning," I would claim as a layperson that there often isn’t much behind it.
Most planners observe 1-2 basic rules and place the supply/exhaust elements "randomly" in the corners, as long as the airflow fits.
Even when it comes to distances from walls, you hear many different opinions from professional planners. Some place the elements 20 cm from the wall without problems, others claim at least 50 cm is necessary, and others even 1.0 - 1.5 m ...
That resonates with me. I have also read many different opinions here. Ultimately, I believe that it does not make such a significant difference whether my valve is 50 cm or 100 cm away from the wall. If I have to move it that far from the wall in a (possibly smaller) child’s room, then it almost inevitably lies above the play area, where the child may spend longer periods of time.
I think some stubborn statements from forums and certain "professional planners" relativize in this regard.
Interesting study, which, from my point of view, applies more specifically to this concrete floor plan or, let’s say, provides insights for similar situations (primarily single-floor apartments). Still interesting to read, possibly to put some myths to rest.
We’ve now had our conversation with the planner on the general contractor side. It was just as I thought. Basically, our task was rather: "How do you roughly want to furnish your future house?" We then discussed the locations of the valves together. Ultimately, I didn’t really get the impression that the general contractor often plans controlled residential ventilation systems. :rolleyes:
Much more interesting than the ceiling valves was the topic of the piping to distribute the air inside the house. We hadn’t considered this yet when planning the floor plan. Unfortunately, we only considered the option of controlled residential ventilation when the building application was already in process. Therefore, there will now be a small boxed-in area in the dining room and the child’s room above (under the sloped ceiling) shown in green in the pictures below, in which the large pipes will be accommodated.
Tip for everyone seriously considering controlled residential ventilation: Think about it directly in the floor plan and cleverly integrate the hiding of pipes, if necessary!
Here is an update of our planning (each arrow indicates a pipe at the valve):
Ground floor/basement (sloped site)
Upper floor
I think a supply air in the open living/dining area is necessary in this case since otherwise, on this floor, you would have no supply air.
Pantry neither supply nor exhaust air.
Why actually no exhaust air in the pantry in your opinion?
Attic
The planner wants (probably for simplicity’s sake) to place supply and exhaust air at the façade at the same location and then use a combined weather protection grille. Is that OK, or are there very significant disadvantages and one should rather separate supply and exhaust air completely? Currently, it is planned on the west side of the house, which faces the neighbor. The south faces a low-traffic street.
Regarding the sizing of the system, I will now also try to use the tool from the manufacturer (it’s supposed to be Vallox). The planned values feel very tight.
Thanks to everyone!