Quiet decentralized ventilation for new single-family house

Maybe also because not every builder is willing - to avoid dry winter air - to spend more money, while it is already standard in comparable systems?

The thing also has a counterflow heat exchanger. How does the moisture recovery work there?
By the way, there are also central systems with rotary heat exchangers, where moisture recovery is practically included as well. The same applies to decentralized devices with reversing direction.

Maybe simply the fact that an air-water heat pump with cooling function - if it is to be installed - makes sense for the first time in the Dütt with this ventilation - usable as a small air conditioner in summer?

There will always be supporters of this or that system; however, the times in which decentralized systems are prematurely given the "cheap card" are clearly over.

Best regards from the Rhineland

I have nothing against decentralized systems. However, they are not without disadvantages either. And these should be allowed to be mentioned.

I am not an expert in ventilation or technically inclined. To avoid misunderstandings, I would therefore suggest you check the provider's page at xxx.blumartin.de yourself. There you will find, afaik, all the information that seems to interest you; including data sheets.

I have nothing against decentralized systems. However, they are not without disadvantages. And those should be allowed to be mentioned.

We should have long agreed that there is no such thing as a jack of all trades.

Rhenish greetings

I am not an expert in ventilation or tech-savvy. To avoid misunderstandings, I would therefore suggest you check the provider's page at xxx.blumartin.de yourself. There you will find, afaik, all the information that seems to interest you; including datasheets.

I did that. The thing is not significantly different from other decentralized systems. However, it seems to be technically very sophisticated. Both in terms of pure hardware as well as sensors and control. However, it is probably only suitable for a very open building design, since with only one device the air exchange in all rooms is not guaranteed. After all, where else with only one decentralized device. Only one device per floor is therefore a very optimistic statement... oh yes, the advertised summer air conditioning is merely a bypass, which of course is not present in other decentralized systems. So rather a high-quality product, but unfortunately not the ultimate solution either.

I would be interested to know what you think of the Bayernlüft Comfort type? We definitely want to have a decentralized system installed. We were suggested the Inventer system. We were able to see one live, but it was already about 10 years old. Our concern is to avoid noisy devices, for example in the bedroom. There are several systems like Helios, Zehnder, etc. We want to have the quietest one. I know the egg-laying wool-milk-sow doesn’t exist, but you can get close. Regards

BluMartin will probably be one of the quietest systems - however, as a purely decentralized system without secondary ductwork, it is very expensive. If you are not ideologically driven, a decentralized system makes more sense in new buildings. We have now chosen the Sev160 and are curious to see if we will regret it.

I should have said that we are planning the new building with it. How many Sevi 160 fans have you installed? Normally, for example, Inventer four per floor should be installed. The Inventer system would then cost around 6500,- euros (so eight units) with heat recovery. What would be the price for the Sevi 160 or also for the 200?