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
D
Doc.Schnaggls29 Jul 2014 11:07f-pNo schrieb:
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Regarding the information about your acquaintance, it appears that he has installed only an exhaust system (in the wet rooms). These exhaust outlets create a negative pressure inside, which causes fresh air to be drawn in through the window vents.
This is the standard ventilation approach suggested by our general contractor. For the reason you mentioned, we had this removed and instead arranged for a decentralized system with heat recovery.That’s correct—however, he was sold the whole thing as a decentralized ventilation system.
I’m also curious about our central ventilation system—at the moment, I can barely imagine not having to ventilate manually anymore. But when the time comes, I’ll really appreciate it. Last night, for example, there was a severe thunderstorm with heavy rain and strong winds, and we couldn’t open a single window in our attic apartment. When it’s that humid, it’s really unpleasant...
Doc.Schnaggls schrieb:
I’m also curious about our central ventilation system – at the moment, I can’t quite imagine not having to open any windows anymore. However, once it’s installed, I’ll be really glad about it. Last night, for example, we couldn’t open a single window in our top-floor apartment because of the heavy thunderstorm with strong rain and wind – that’s really unpleasant when it’s so humid... We’re also looking forward to our decentralized system. Most likely, we’ll still open the windows occasionally at night during summer and turn off the system. For that reason, we’ve had insect screen blinds installed.
Last night, there was heavy rain forecast for a while here too. So the roof windows on the upper floor stayed closed, which meant the warm air trapped upstairs couldn’t escape. Fortunately, our balcony door is slightly covered, allowing us to bring cooler night air into the lower level.
In the future, since we are building with two full stories, we won’t have the annoying issue of heat buildup due to unopened roof windows upstairs. Besides, that’s exactly why we have the ventilation system – to handle heavy rain situations.
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Doc.Schnaggls29 Jul 2014 11:27f-pNo schrieb:
We’re also looking forward to our decentralized system. Probably during the summer, we’ll still open the windows at night occasionally and turn the system off. For this purpose, we had insect screen blinds installed.Somehow, our houses seem to be quite similar in terms of equipment.
For this exact reason, we also installed insect screen blinds on several windows from the start:
- one window in each of the two children’s rooms
- the bedroom window
- the bathroom window
- the sliding terrace door
- one kitchen window
Do you have these anti-buzz blinds on all your windows?
Regards,
Dirk
Bauexperte schrieb:
Hello Yvonne,
Then your microphone settings on your phone or speaker settings on your PC/Mac are not correct
Regards, BauexperteNo, I am intentionally WITHOUT sound (I don’t have to put up with that)
C
christianmarx29 Jul 2014 11:38Here’s a different question. When it’s humid outside, the ventilation system also draws in the moist air, right? Then it gets exhausted at another location. A cycle.
If you turn off the system at night and ventilate by opening windows, you could just ventilate with windows all day.
So, for me, the ventilation system has only two advantages so far: heat recovery and, in houses with high traffic noise, ventilation without outside noise disturbance.
We don’t have noise issues, and we are willing to bear the additional energy costs. On the one hand, this saves the extra costs for a ventilation system (about €6,000 for decentralized, surely around €10,000 for centralized), and on the other hand, the maintenance costs for the system.
If you turn off the system at night and ventilate by opening windows, you could just ventilate with windows all day.
So, for me, the ventilation system has only two advantages so far: heat recovery and, in houses with high traffic noise, ventilation without outside noise disturbance.
We don’t have noise issues, and we are willing to bear the additional energy costs. On the one hand, this saves the extra costs for a ventilation system (about €6,000 for decentralized, surely around €10,000 for centralized), and on the other hand, the maintenance costs for the system.
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Doc.Schnaggls29 Jul 2014 11:49In this forum, only other builders and homeowners can share their experiences with you.
The concerns raised here by various forum members about this system do not seem to be relevant to you – therefore, I would recommend having this window ventilation installed if you are convinced of its benefits.
The points you mentioned in your last post have already been (sometimes multiple times) discussed in this thread.
The concerns raised here by various forum members about this system do not seem to be relevant to you – therefore, I would recommend having this window ventilation installed if you are convinced of its benefits.
The points you mentioned in your last post have already been (sometimes multiple times) discussed in this thread.
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