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
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
M
motorradsilke3 Apr 2021 10:18ypg schrieb:
Ventilation does not require an application.No, the ventilation system itself does not, at least not with the building authorities. However, it is included in the building plans submitted to the authorities, so the utility room has to be correspondingly larger, the ducts must be accounted for in the planning, and so on.
And the original poster is constructing a KfW55 standard house. For applying for the subsidy, you need the ventilation certificate or documentation on the planned ventilation method.
S
Schlauerfuchs4 Apr 2021 19:46Take a look at the Aereco system. We plan to install it for wet rooms. It provides exhaust ventilation only when humidity increases. Supply air comes through slots in the roller shutter boxes, which can be closed if needed. It’s not entirely optimal in terms of energy efficiency, but it is cost-effective and performs its intended function. Ductwork is also required, but in our case only four ducts (kitchen, bathroom, guest toilet, and utility room).
motorradsilke schrieb:
No, not the ventilation system itself, at least not for the building authority. But it is included in the building plans submitted to the authority, so the utility room needs to be designed larger, the ductwork must be accounted for in the planning, and so on.
And the original poster is building to KfW 55 standard. To apply for the subsidy, you need documentation of the ventilation system or details on how ventilation will be provided.KfW 55 is possible without mechanical ventilation.motorradsilke schrieb:
And the main contractor is building a KfW55 standard house. To apply for the subsidy, you need proof of the ventilation system or details on how ventilation will be handled. Only the calculation of energy consumption is required... although the calculation is usually a simplified version (if I remember correctly). Upgrading is always possible anyway. The signature of an authorized person (architect) basically confirms the application.
M
motorradsilke4 Apr 2021 20:16tomtom79 schrieb:
Kfw55 is possible without mechanical ventilation with heat recoveryYes. I did not say it is required. But you have to decide how you want to implement it when submitting the KFW application. And if you plan to start building in April, the application should already be submitted by now.M
motorradsilke4 Apr 2021 20:19ypg schrieb:
Only the calculation of energy consumption... although the calculation is also just a simplified one (I seem to remember). Upgrading is always possible anyway. The signature of an authorized person (architect) basically approves what was applied for.In our KfW application from January this year, the type of ventilation was included. This was done by the mandatory energy consultant. They also provided documents for the building permit / planning permission that included the type of ventilation.