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.
We have 10 units running at level 3, assuming the new building itself contributes 0.2, with an air exchange rate of 0.5. However, level 3 is too loud for continuous operation, and 0.5 is not really necessary (?!). Due to our lack of experience, we are curious to see how living with these devices in the house will be.
The cost for 10 units is approximately the same as for your 8 inverters.
The cost for 10 units is approximately the same as for your 8 inverters.
B
Bauexperte18 May 2015 16:50BeHaElJa schrieb:
BluMartin is probably one of the quietest systems – but as a purely decentralized unit without secondary ducting, it is quite expensive. That is – as always – relative; BluMartin does not cost more than what you are paying now. Unless you have more than 150 m² (1,615 sq ft) to ventilate. And you would have "only" one wall opening per floor.
Regards, Bauexperte
L
Lebensprojekt18 May 2015 17:08Well, we are planning the classic detached house with about 140-150 m² (1500-1600 sq ft), and the decentralized systems seem to be roughly the same price. The benefit of each system is questionable, though. That’s why we haven’t decided on which system to choose yet.
One of our builders doesn’t think much of the system. On one hand, he says we should insulate, but on the other hand, we’re making holes in the walls again.
We attended a presentation on this topic, and it was recommended to ventilate every 2-3 hours (if no ventilation system is installed). Nobody can afford that nowadays (we certainly can’t).
That’s why we’re looking for the all-in-one solution—few wall penetrations, quiet, and ultimately effective. Does that exist?
Best regards
One of our builders doesn’t think much of the system. On one hand, he says we should insulate, but on the other hand, we’re making holes in the walls again.
We attended a presentation on this topic, and it was recommended to ventilate every 2-3 hours (if no ventilation system is installed). Nobody can afford that nowadays (we certainly can’t).
That’s why we’re looking for the all-in-one solution—few wall penetrations, quiet, and ultimately effective. Does that exist?
Best regards
B
Bauexperte18 May 2015 17:27Hello,
Okay. That would have increased your cost by about EUR 3,500. But the system is really great; we now only sell it in the decentralized segment.
Best regards, Bauexperte
BeHaElJa schrieb:
@Bauexperte: The plan we received from BluMartin included 4, or optionally 5, units. However, our area is 190 m² (2045 sq ft).
That would have required running ducts into the secondary rooms.
Okay. That would have increased your cost by about EUR 3,500. But the system is really great; we now only sell it in the decentralized segment.
Best regards, Bauexperte
B
bratwurst18 May 2015 21:45I am currently considering having this planned professionally. What would be the approximate cost for 140m2 (1507 sq ft) over 2 floors?
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