ᐅ Is a ventilation system now mandatory for new buildings under the 2016 Energy Saving Ordinance?
Created on: 22 Feb 2017 13:53
C
Cunarder
Hello Forum,
I am new here and hope you can help.
It’s about our new build project, which is scheduled to start in April.
The goal is to build a KfW 55 house (solid construction). We originally planned to do this without a ventilation system.
However, we keep reading here and there that a ventilation system is mandatory for the KfW 55 certification.
Additionally, today the local utility company informed me that the 2016 Energy Saving Ordinance requires automatic ventilation. The builder, on the other hand, insists it is not necessarily required.
Can you help clarify this?
1. Is it really mandatory?
2. Can you manage well without it, or is it better to invest the money in a ventilation system?
I look forward to your advice.
Thank you very much.
I am new here and hope you can help.
It’s about our new build project, which is scheduled to start in April.
The goal is to build a KfW 55 house (solid construction). We originally planned to do this without a ventilation system.
However, we keep reading here and there that a ventilation system is mandatory for the KfW 55 certification.
Additionally, today the local utility company informed me that the 2016 Energy Saving Ordinance requires automatic ventilation. The builder, on the other hand, insists it is not necessarily required.
Can you help clarify this?
1. Is it really mandatory?
2. Can you manage well without it, or is it better to invest the money in a ventilation system?
I look forward to your advice.
Thank you very much.
S
stefanc8423 Feb 2017 09:00Yes, leaving the window open is perfectly fine, I understand that. However, in that case, you probably won’t prioritize a perfectly insulated energy-efficient house, which is what this discussion is about.
Komposthaufen schrieb:
Mostly. Not all hours of the night and not at double-digit below-zero temperatures, but quite regularly. We sleep well in cool, clear air.In that case, you are heating the outside, which should actually be avoided.
Best regards in short
Komposthaufen schrieb:
There is a lot of debate again about how you supposedly don’t need to ventilate thanks to controlled residential ventilation systems. It sounds as if ventilating is a terrible burden. I can only speak for my/our living habits, but we basically always have the bedroom windows open when we or our child are inside. From spring to autumn, also in many other rooms.I completely disagree, especially in winter... and yes, I do find it a burden to come home and immediately have to open all the windows because the air just isn’t fresh. Then those tilted or open windows cool down the house, and I have to heat again at a higher cost. Why else build KfW-standard houses if the benefits partly vanish because you have the windows open or installed trickle vents?
We are also the type of people who open windows. When I get up in the morning, I first go to the living room and kitchen, open the windows, make myself a coffee, and feed the cat. I also enjoy this refreshing burst of fresh air even in winter. I think that in the morning, with the warmth still in your body from the bed, you don’t get cold so quickly.
B
Bieber081523 Feb 2017 09:39First of all, it is not forbidden to open windows.
What might not be so obvious to those without a mechanical ventilation system is that with controlled residential ventilation, you have fresh air all night long, continuously and constantly. You wake up, and the air is just as fresh as when you went to sleep. Opening the window might make it colder, but not "fresher."
What might not be so obvious to those without a mechanical ventilation system is that with controlled residential ventilation, you have fresh air all night long, continuously and constantly. You wake up, and the air is just as fresh as when you went to sleep. Opening the window might make it colder, but not "fresher."
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