ᐅ Quiet decentralized ventilation system for new single-family home construction
Created on: 1 Mar 2015 12:48
L
Legurit
Hello everyone,
During our first consultation with a building professional for a quote, we were asked to choose a ventilation system ourselves, as we are still somewhat skeptical about the "SEVi 160" model proposed by them. Our planner recommended a Halmburger ventilation system – we definitely want to see and listen to it in person. He also mentioned BluMartin, which personally seems a bit bulky to me – and once additional rooms are connected, it starts to feel more like a “central” system again. I also find the cassette filters quite expensive at 50 € (about $55) per unit per year.
We found the videos on the Bayernlüfter website quite appealing, but we are somewhat skeptical about the maximum airflow of 20 m³ (about 710 cubic feet) per hour. We also couldn’t find any information about noise levels at different ventilation rates (which is also missing for the SEVi – but the building professional mentioned that it can be heard).
We are looking for a ventilation system that can achieve an air exchange rate of 40 m³ (about 1,400 cubic feet) per hour (approximately 1 air change per hour for our bedroom) without being audible. Does such a system exist, or does anyone have experience with the mentioned brands? Is an air exchange rate of 1 per hour even necessary for a bedroom with two occupants?
Thank you and best regards.
P.S.: I have the impression that the decentralized ventilation industry is very fragmented with many small players.
During our first consultation with a building professional for a quote, we were asked to choose a ventilation system ourselves, as we are still somewhat skeptical about the "SEVi 160" model proposed by them. Our planner recommended a Halmburger ventilation system – we definitely want to see and listen to it in person. He also mentioned BluMartin, which personally seems a bit bulky to me – and once additional rooms are connected, it starts to feel more like a “central” system again. I also find the cassette filters quite expensive at 50 € (about $55) per unit per year.
We found the videos on the Bayernlüfter website quite appealing, but we are somewhat skeptical about the maximum airflow of 20 m³ (about 710 cubic feet) per hour. We also couldn’t find any information about noise levels at different ventilation rates (which is also missing for the SEVi – but the building professional mentioned that it can be heard).
We are looking for a ventilation system that can achieve an air exchange rate of 40 m³ (about 1,400 cubic feet) per hour (approximately 1 air change per hour for our bedroom) without being audible. Does such a system exist, or does anyone have experience with the mentioned brands? Is an air exchange rate of 1 per hour even necessary for a bedroom with two occupants?
Thank you and best regards.
P.S.: I have the impression that the decentralized ventilation industry is very fragmented with many small players.
D
DerBjoern7 Apr 2015 14:37Bauexperte schrieb:
Maybe also because not every homeowner is willing to invest additional money to avoid dry winter air, even though it is already standard in comparable systems? The unit also has a counterflow heat exchanger. How does moisture recovery work in this case?
By the way, there are also central systems with rotary heat exchangers, where moisture recovery is basically included. Likewise, decentralized devices with reversible flow.
Maybe simply the fact that an air-to-water heat pump with cooling function – if installed – makes sense for the first time in combination with this ventilation system, as it can be used as a small air conditioner in summer?
There will always be supporters of this or that system; however, the days when decentralized systems were prematurely dismissed as the "cheap option" are clearly over.
Best regards, Bauexperte I have nothing against decentralized systems. However, they are not without disadvantages either, and these should be allowed to be mentioned.
B
Bauexperte7 Apr 2015 14:53@DerBjoern
I am not an expert in ventilation or particularly tech-savvy. To avoid misunderstandings, I would suggest you check the provider’s website at xxx.blumartin.de yourself. As far as I know, you will find all the information that seems relevant to you there, including data sheets.
Regards, Bauexperte
I am not an expert in ventilation or particularly tech-savvy. To avoid misunderstandings, I would suggest you check the provider’s website at xxx.blumartin.de yourself. As far as I know, you will find all the information that seems relevant to you there, including data sheets.
DerBjoern schrieb:We should all agree by now that there is no perfect solution that fits every need.
I have nothing against decentralized systems. However, they also have disadvantages. And those should be allowed to be mentioned.
Regards, Bauexperte
D
DerBjoern7 Apr 2015 15:03Bauexperte schrieb:
@DerBjoern I am not an expert in ventilation or particularly tech-savvy. To avoid misunderstandings, I would suggest you check the provider’s website at xxx.blumartin.de yourself. As far as I know, you’ll find all the information you seem interested in there, including data sheets.I have done that. The device is not significantly different from other decentralized systems. However, it seems to be technically very sophisticated, both in terms of hardware as well as sensors and control. Still, it probably only works well with a very open building design, since with just one unit, air exchange in all rooms cannot be guaranteed. This is simply not possible with only one decentralized device. Having only one unit per floor is therefore a very optimistic assumption... oh, and the advertised summer climate control is just a bypass, which is not available in other decentralized systems. So, it’s more of a high-quality product, but unfortunately not the ultimate solution.
L
Lebensprojekt18 May 2015 15:13I would like to hear your opinions on the Bayernlüfter Comfort model. We definitely want to have a decentralized ventilation system installed.
The inventer system was recommended to us. We were able to see one in person, although it was already about 10 years old.
Our main concern is to avoid any noise, for example, in the bedroom.
There are several systems like Helios, Zehnder, etc. We want the quietest one available.
I know there is no perfect all-in-one solution, but it’s possible to get close.
Regards
The inventer system was recommended to us. We were able to see one in person, although it was already about 10 years old.
Our main concern is to avoid any noise, for example, in the bedroom.
There are several systems like Helios, Zehnder, etc. We want the quietest one available.
I know there is no perfect all-in-one solution, but it’s possible to get close.
Regards
BluMartin will probably be one of the quietest systems – however, as a purely decentralized unit without secondary ducts, it is very expensive. If you are not ideologically driven, a decentralized system makes more sense for new construction.
We have now chosen the Sev160 and are curious if we will regret it.
We have now chosen the Sev160 and are curious if we will regret it.
L
Lebensprojekt18 May 2015 15:55I should have mentioned that we are planning the new build with this. How many Sevi 160 fans have you installed? Normally, for example, four Inventer units are installed per floor.
The Inventer system would then cost around 6,500 euros (about eight units) with heat recovery.
What would be the estimated price for the Sevi 160 or also the 200 model?
The Inventer system would then cost around 6,500 euros (about eight units) with heat recovery.
What would be the estimated price for the Sevi 160 or also the 200 model?
Similar topics