Hello everyone,
I am currently working on the planning of our new KfW40 house.
A controlled residential ventilation system is planned.
In addition, I would like to install KNX throughout the house.
For both the controlled ventilation system and the numerous cables required for the KNX control, a routing path to our technical room in the basement (cellar) is necessary.
Therefore, I was thinking of installing/building a riser shaft.
However, I am still uncertain about its positioning.
I have considered three possible locations:
1: Next to the front entrance door.
Advantage: Would be directly adjacent to the technical room
Disadvantage: Takes up some hallway space, varying cable lengths for the controlled ventilation system
2: In the guest room/children’s room.
Advantage: Would lead directly to the technical room
Disadvantage: Loss of space in the guest/children’s room, possible noise disturbance?, varying cable lengths for the controlled ventilation system
3: Directly next to the chimney flue.
Advantage: Very central location, all duct paths for the controlled ventilation system are similarly long
Disadvantage: Ends in the unheated garage (basement itself insulated, but garage is not), limited space, is it allowed to have ventilation ducts so close to the chimney flue?
Light blue dots = exhaust controlled ventilation
Dark blue = supply air controlled ventilation
Maybe you could take a look at the plans and give me some feedback. Or perhaps you might find a completely different location for the riser shaft.
Thank you very much!
I am currently working on the planning of our new KfW40 house.
A controlled residential ventilation system is planned.
In addition, I would like to install KNX throughout the house.
For both the controlled ventilation system and the numerous cables required for the KNX control, a routing path to our technical room in the basement (cellar) is necessary.
Therefore, I was thinking of installing/building a riser shaft.
However, I am still uncertain about its positioning.
I have considered three possible locations:
1: Next to the front entrance door.
Advantage: Would be directly adjacent to the technical room
Disadvantage: Takes up some hallway space, varying cable lengths for the controlled ventilation system
2: In the guest room/children’s room.
Advantage: Would lead directly to the technical room
Disadvantage: Loss of space in the guest/children’s room, possible noise disturbance?, varying cable lengths for the controlled ventilation system
3: Directly next to the chimney flue.
Advantage: Very central location, all duct paths for the controlled ventilation system are similarly long
Disadvantage: Ends in the unheated garage (basement itself insulated, but garage is not), limited space, is it allowed to have ventilation ducts so close to the chimney flue?
Light blue dots = exhaust controlled ventilation
Dark blue = supply air controlled ventilation
Maybe you could take a look at the plans and give me some feedback. Or perhaps you might find a completely different location for the riser shaft.
Thank you very much!
A
Allthewayup16 Aug 2025 18:59I would go with position 2. Make the wall section on the upper floor up to the hallway 24cm (10 inches) thick, then everything will fit in, even without an additional facing wall. But leave the exterior wall untouched and move the utility lines closer to the hallway, ideally just behind each door. The structural engineer should review this again since it will be a wide slot.
What about the basement ventilation?
What about the basement ventilation?
@Allthewayup
Thanks for the feedback!
Unfortunately, I can’t reach all the way to the door on the upper floor because the ground floor has a slanted wall there. So, I have planned up to the slant for now.
I will definitely talk to the structural engineer again. At the moment, the energy consultant is still working on it...
Thanks for the feedback!
Unfortunately, I can’t reach all the way to the door on the upper floor because the ground floor has a slanted wall there. So, I have planned up to the slant for now.
I will definitely talk to the structural engineer again. At the moment, the energy consultant is still working on it...
ypg schrieb:
Someone is definitely fond of slanted walls.Well, just following the trend. 1980 is on its way!https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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