ᐅ Controlled ventilation system manufacturers – Which ones are recommended and where can you arrange the design?
Created on: 14 Sep 2020 20:23
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Mateo84
Hello everyone,
Next year is the time, and we will start building.
The building permit (planning permission) will be submitted next week before the electrician begins with the conduit planning and the structural engineer starts. I have the following questions for you experts:
Key data:
"City villa" 200 sqm (2,150 sq ft)
Summer bypass
Enthalpy system
Now to my request...
We want to install the ducts for the mechanical ventilation with heat recovery ourselves and possibly have the mechanical ventilation system installed and commissioned by a professional company or dealer.
Since we have not yet decided on a heating manufacturer or specialist company and want to remain independent in this regard, we are now looking for information:
1. Which manufacturer would you recommend given the key data?
2. Should we request professional planning directly from the manufacturer or the dealer? Does anyone have an idea of the approximate costs?
3. Should everything be done through Selfio.de? Is the planning good? Has anyone gained experience there? Is the material of good quality?
4. If there are other options, please share them...
I am sure I have forgotten something, but this should be enough to start.
Best regards,
Mateo
Next year is the time, and we will start building.
The building permit (planning permission) will be submitted next week before the electrician begins with the conduit planning and the structural engineer starts. I have the following questions for you experts:
Key data:
"City villa" 200 sqm (2,150 sq ft)
Summer bypass
Enthalpy system
Now to my request...
We want to install the ducts for the mechanical ventilation with heat recovery ourselves and possibly have the mechanical ventilation system installed and commissioned by a professional company or dealer.
Since we have not yet decided on a heating manufacturer or specialist company and want to remain independent in this regard, we are now looking for information:
1. Which manufacturer would you recommend given the key data?
2. Should we request professional planning directly from the manufacturer or the dealer? Does anyone have an idea of the approximate costs?
3. Should everything be done through Selfio.de? Is the planning good? Has anyone gained experience there? Is the material of good quality?
4. If there are other options, please share them...
I am sure I have forgotten something, but this should be enough to start.
Best regards,
Mateo
Hello,
the size works for us; our system runs continuously at only 175 m³/h (206 cfm). Given our house’s volume of about 650 m³ (23,000 cubic feet), this means the air inside is completely replaced roughly every 220 minutes. This is enough to keep the air pleasantly fresh throughout the house at all times. However, after showering, we also open the bathroom window for a few minutes and do not expect the system to remove the shower’s humidity entirely on its own. Apart from that, our windows and doors are basically always closed.
If you want significantly higher air exchange rates, simply installing a larger unit on the basement wall won’t be enough. You will also need many more ducts and outlets to avoid noise and drafts.
Best regards,
Andreas
the size works for us; our system runs continuously at only 175 m³/h (206 cfm). Given our house’s volume of about 650 m³ (23,000 cubic feet), this means the air inside is completely replaced roughly every 220 minutes. This is enough to keep the air pleasantly fresh throughout the house at all times. However, after showering, we also open the bathroom window for a few minutes and do not expect the system to remove the shower’s humidity entirely on its own. Apart from that, our windows and doors are basically always closed.
If you want significantly higher air exchange rates, simply installing a larger unit on the basement wall won’t be enough. You will also need many more ducts and outlets to avoid noise and drafts.
Best regards,
Andreas
andimann schrieb:
to neither noise nor drafts.That’s exactly what I’m getting at, but for example, does Mr. Schliebe also ask about that? Meaning, is there also an assessment of the supply/exhaust air positioned per room and the overall concept?
Does anyone else have an opinion on manufacturer types?
Best regards
andimann schrieb:
After showering, we do open the bathroom window for a few minutes and don’t expect the ventilation system to remove all the moisture from the shower on its own. Otherwise, our windows and doors are basically always closed. The Zehnder system also detects when you are showering or when there is increased humidity in the house. It then switches to full power for a certain period.
We are satisfied with it, but our home is only 150m² (1,615 sq ft). I would still always choose this device again (or a slightly larger model if needed).
Don’t forget the internet interface! You have to purchase this separately for (I think) 100€. It connects via LAN, so make sure there is a LAN connection at the installation site.
This way, you have access at ANY TIME to all data and settings of the system. It’s quite interesting, and you can adjust many things, optimize settings, create schedules, and so on.
Hi,
Yes, you can do that. We consciously decided against it because we didn’t want to have a draft in the living room or hear the ventilation noise just because the bathroom is more humid. But that’s a matter of preference.
You do need to buy the LAN interface separately. It’s an extension module that you have to connect with four wires. I think it cost about 150 € back then. It’s not essential, just a nice-to-have feature. In my opinion, you shouldn’t have to adjust such a system frequently. Set it once and then forget about it, similar to the heating system.
Best regards,
Andreas
Golfi90 schrieb:
The Zehnder also detects when you shower or when there is increased humidity in the house. Then it switches to full power for a certain period.
Yes, you can do that. We consciously decided against it because we didn’t want to have a draft in the living room or hear the ventilation noise just because the bathroom is more humid. But that’s a matter of preference.
You do need to buy the LAN interface separately. It’s an extension module that you have to connect with four wires. I think it cost about 150 € back then. It’s not essential, just a nice-to-have feature. In my opinion, you shouldn’t have to adjust such a system frequently. Set it once and then forget about it, similar to the heating system.
Best regards,
Andreas
R
Reini123417 Nov 2020 21:49@andimann
Could you take a look at my newly opened thread? Based on the data, I have a similar house to yours, but my rated ventilation volume is designed for 221 m³/h (130 cfm). Would it be possible to get some insight into your ventilation concept? Private messages are not enabled for me here.
Could you take a look at my newly opened thread? Based on the data, I have a similar house to yours, but my rated ventilation volume is designed for 221 m³/h (130 cfm). Would it be possible to get some insight into your ventilation concept? Private messages are not enabled for me here.
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pagoni202010 Feb 2021 14:13opalau schrieb:
I am somewhat disappointed with the enthalpy heat exchanger. When we moved in March, while it was still colder outside, the indoor humidity was about the same low level as in our old rental apartment with controlled ventilation without a heat exchanger. Let’s see how it performs during winter. Do you have any new experiences regarding the model size and effectiveness of the enthalpy exchanger?
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