ᐅ Electric window opening as an alternative to a ventilation system?
Created on: 28 Jul 2014 11:17
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christianmarx
Hello dear forum community,
this is our first post in this forum.
We will be building soon (townhouse, 140 sqm (1507 sq ft), hipped roof, masonry construction, quiet residential area). We are currently having difficulties deciding on the ventilation system.
We have basically ruled out a central ventilation system because no one can tell us what the condition of the ducts will be like inside after 30 years. Apart from the ongoing maintenance costs for such a system, this feels too uncertain to us. There is a lack of long-term experience here.
We like the decentralized option better, as the entire unit can be removed for thorough cleaning. The downside is the many wall openings (probably 6 for 2 floors, 3 per floor).
Our window supplier therefore suggested windows with parallel opening ventilation. These are burglar-resistant despite being open (resistance class RC2) and can also be equipped with an electric drive, allowing them to open automatically according to settings (random mode, every 10 minutes, every 30 minutes, etc.). This window ventilation meets the requirements for user-independent ventilation according to DIN 1946-6 and has been tested by the Fraunhofer Institute. Of course, we are aware that this option results in energy loss (no heat recovery).
What do you think? Has anyone installed this before and can share their experience?
We look forward to your opinions!
Best regards,
christianmarx
this is our first post in this forum.
We will be building soon (townhouse, 140 sqm (1507 sq ft), hipped roof, masonry construction, quiet residential area). We are currently having difficulties deciding on the ventilation system.
We have basically ruled out a central ventilation system because no one can tell us what the condition of the ducts will be like inside after 30 years. Apart from the ongoing maintenance costs for such a system, this feels too uncertain to us. There is a lack of long-term experience here.
We like the decentralized option better, as the entire unit can be removed for thorough cleaning. The downside is the many wall openings (probably 6 for 2 floors, 3 per floor).
Our window supplier therefore suggested windows with parallel opening ventilation. These are burglar-resistant despite being open (resistance class RC2) and can also be equipped with an electric drive, allowing them to open automatically according to settings (random mode, every 10 minutes, every 30 minutes, etc.). This window ventilation meets the requirements for user-independent ventilation according to DIN 1946-6 and has been tested by the Fraunhofer Institute. Of course, we are aware that this option results in energy loss (no heat recovery).
What do you think? Has anyone installed this before and can share their experience?
We look forward to your opinions!
Best regards,
christianmarx
C
christianmarx28 Jul 2014 14:51We had an appointment with the window manufacturer, attended by representatives from Winkhaus (hardware) and Wirus (windows), along with a sample window fitted with Winkhaus hardware and an electric locking mechanism. That's right, it’s not very clear in the pictures.
However, the window only protrudes by 0.6 cm (0.2 inches). Even in extreme wind conditions, not much air should be blown inside. Since the electronics will mostly operate via KNX and there will already be a weather station installed for the awning that retracts it when it rains, it makes sense to automatically close the open windows as well. I don’t see any issue with that at all.
However, the window only protrudes by 0.6 cm (0.2 inches). Even in extreme wind conditions, not much air should be blown inside. Since the electronics will mostly operate via KNX and there will already be a weather station installed for the awning that retracts it when it rains, it makes sense to automatically close the open windows as well. I don’t see any issue with that at all.
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nordanney28 Jul 2014 16:44christianmarx schrieb:
But the window only protrudes by 0.6 cm (0.25 inches). Even in extreme wind, there shouldn’t be excessive air blown inside. Most likely, not even fresh air will be blown in then.
Irony mode off!
Will the window then need to stay open continuously for proper ventilation, or how should I imagine that?
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christianmarx28 Jul 2014 17:10You have different settings for the electric window option itself: continuous ventilation, random mode, timed ventilation (choices: 10 minutes, 20 minutes, 30 minutes), or automatic ventilation (10 minutes per hour).
You can, of course, also install a humidity sensor in the room that tells the actuator when to open the window. This is no problem with a KNX installation.
Here is a video:
[MEDIA=YouTube]5NhEEfVb0C0[/MEDIA]
You can, of course, also install a humidity sensor in the room that tells the actuator when to open the window. This is no problem with a KNX installation.
Here is a video:
[MEDIA=YouTube]5NhEEfVb0C0[/MEDIA]
I watched the video without sound. Is there any sound? I usually browse online without sound...
There was no mention of "retaining the heat inside the room."
Where air escapes, heat escapes as well, meaning the warmed air... so I wonder why this system exists if it goes against the energy-saving regulations.
There was no mention of "retaining the heat inside the room."
Where air escapes, heat escapes as well, meaning the warmed air... so I wonder why this system exists if it goes against the energy-saving regulations.
ypg schrieb:
It didn’t say anything about “also retaining heat inside the room”…Check at 1:52
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nordanney28 Jul 2014 21:05... I’m also skeptical about that and prefer to stick with our central ventilation system.