ᐅ Alternative to Centralized/Decentralized Ventilation

Created on: 2 Apr 2021 22:59
U
Unentschlossen
Hello everyone,

I recently joined this forum because we are currently quite frustrated with the topic of ventilation.
Our construction project starts at the end of April.
It is a solid brick/Poroton house, a single-family home with 200 m² (2,150 sq ft) of living space on two levels. KfW 55 energy standard.

I can’t really explain it, but I can’t decide on a central ventilation system because of the long duct lengths inside the house. I know that all pipes are clean and protected by filters, but my gut feeling just doesn’t agree.
With decentralized systems, we are bothered by the fans on the exterior walls in every room.

Now we are looking for an alternative.
We also didn’t find window frame ventilators very appealing.

So my question is:
Has anyone else experienced this or does anyone know of another system?
We learned about a system available through Baufritz houses with air transfer grills. However, it is only distributed through Baufritz.
It’s a central ventilation system that blows air directly into the house over a short distance and then distributes it further via transfer grills above the doors.

I look forward to your input and help.

The undecided homeowner
H
hampshire
5 Apr 2021 09:54
Standard bed, direct forest edge location (<10m (33 feet)), in an unusually large room with about 40 houses in the village. The measurement value still can't be correct, @RotorMotor is absolutely right.

@Unentschlossen:
Panasonic multi-split inverter systems.
Mycraft5 Apr 2021 11:02
Unentschlossen schrieb:

It doesn't have to be efficient or cost-effective. It's only about comfort, pure luxury so you don't have to ventilate manually.

That is the definition of a centralized ventilation system. It can be designed as inefficiently as you want, and you will never have to ventilate manually again. At the same time, the standard values are always met, pure comfort.

If you are concerned about the length of the ductwork, then keep it as short as possible. Simply place everything in the ceiling of the ground floor/floor slab, so that in the best case you don’t have any duct longer than the diagonal of the house.
B
Bookstar
5 Apr 2021 11:15
For those who are really concerned, there are systems you can clean yourself. Investing one hour per year gives you 100% certainty and reliably clean pipes. Alternatively, you can use an endoscope camera to inspect the pipes after two years and put your worries to rest.
U
Unentschlossen
5 Apr 2021 11:21
hampshire schrieb:

Normal bed, direct forest edge location (<10m (33 inches)), in an unusually large room with about 40 houses in the village. The measurement still can’t be correct, @RotorMotor is absolutely right about that.

@Unentschlossen:
Panasonic multi-split inverter systems.

Panasonic multi-split inverter systems
Is that the air conditioning unit? When I search on Google, I only find “klima.”
Can you provide me with more details?
N
netuser
3 May 2021 15:59
Dear forum members,

Could someone please help me with the positioning of the outdoor air/supply air and exhaust air of a central controlled residential ventilation system?

How important is it to consider the cardinal direction, meaning the orientation of the house? Currently, our outdoor air/supply air intake is planned on the west side (street side), and the exhaust air outlet is facing north.

We are wondering if it might make more sense to swap these so that cooler, cleaner supply air is drawn from the north, and the exhaust air is released toward the street side.

Is this a reasonable consideration, nonsense, or possibly irrelevant?

Thank you in advance!
Mycraft3 May 2021 16:07
netuser schrieb:

How important is the consideration of the cardinal direction, that is, the orientation of the house, in this context?
Not important at all. However, having the exhaust vent facing the street can be more practical for installing better filters and thus extending the replacement intervals somewhat.

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