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
DerBjoern19 May 2015 13:27Lebensprojekt schrieb:
A central system costs more than twice as much (about 15,000€). It's understandable since the whole house has to be connected with ventilation ducts across all floors (starting from the utility room).For a typical single-family house of 140–150 m² (1,500–1,615 ft²)?!
Only if a significant amount of money is being pocketed somewhere along the way...
L
Lebensprojekt19 May 2015 13:43Yes, no joke, I have the prices in front of me: Central system Zehnder Comfort Air around 15,000 €; central system Viessmann Vitovent 300 14,000 €, etc., for a 146 m² (1,571 sq ft) single-family house.
D
DerBjoern19 May 2015 13:49Impressive, the prices for a 156m² (1680 sq ft) house were between 7,500 and 9,000 two years ago in my case...
Lebensprojekt schrieb:
I assume the offers are within the range I mentioned here!?
We have 6 fans with heat recovery ventilation and one exhaust fan in each of the wet rooms (2 bathrooms, kitchen, utility room), so a total of 4 exhaust fans. The price for the units was below the one posted. However, if you don’t plan to install them yourself, you still need to factor in the installation costs.
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I searched for a long time in our area—after all, the Trier region is still a bit further west.
There might be a ventilation office in (I think it was Wiesbaden or Wuppertal), but they haven’t installed anything—so there’s nothing you can check out firsthand.
As far as I read, you received an invitation from @EveundGerd. If I remember correctly, they also installed a decentralized system.
Lebensprojekt schrieb:
Yes, that sounds interesting, but Berlin is not nearby—500 km (310 miles) is something you have to plan for in advance. Is there a similar center closer by?
Otherwise, you have to start packing your bags...
I searched for a long time in our area—after all, the Trier region is still a bit further west.
There might be a ventilation office in (I think it was Wiesbaden or Wuppertal), but they haven’t installed anything—so there’s nothing you can check out firsthand.
As far as I read, you received an invitation from @EveundGerd. If I remember correctly, they also installed a decentralized system.
N
nordanney19 May 2015 16:34Lebensprojekt schrieb:
Yes, no joke, I have the prices in front of me. Central system Zehnder Comfort Air about €15,000; Central system Viessmann Vitovent 300 about €14,000, etc., for a 146 m² (1570 sq ft) single-family house That’s almost €3,000 more than we paid for our system for 250 m² (2690 sq ft) of living space (footprint 300 m² (3230 sq ft)) – our system is from Vallox. Those prices seem way overpriced for your case.
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