ᐅ Choosing a Mechanical Ventilation with Heat Recovery System Manufacturer – How to Approach?
Created on: 5 Oct 2020 22:38
T
ts-mc
Hello, I’m Matthias,
I am currently in the final stages of planning (hopefully soon submitting the building permit).
I want to build to the KfW55 standard, which requires a controlled residential ventilation system. But primarily for comfort reasons!
At first, I quickly considered Helios, then Zehnder... shortly after that Komfovent. And so it went on from brand to brand. Since this is a major cost factor, I want to do everything right and take some more time to consider your experiences as well.
What is the best way to proceed? How do I decide on a manufacturer? Where should I start?
Which criteria should I consider besides the following?:
- Operating noise (I am very sensitive)
- KNX integration
- Intelligent, room- and demand-based control (VOC & humidity)
- Cooling/air dehumidification in summer (via earth tubes around the house/basement + heat exchanger in the supply air)
- Good accessibility for cleaning
//Key data\\
160m² (1722 ft²)
2.5 floors
3 bedrooms + 1 bathroom + 1 toilet
Open plan living-dining-kitchen area
Basement
Underfloor heating (gas)
That’s a lot of questions... I didn’t want to scatter this piece by piece. Any constructive advice is welcome.
I am currently in the final stages of planning (hopefully soon submitting the building permit).
I want to build to the KfW55 standard, which requires a controlled residential ventilation system. But primarily for comfort reasons!
At first, I quickly considered Helios, then Zehnder... shortly after that Komfovent. And so it went on from brand to brand. Since this is a major cost factor, I want to do everything right and take some more time to consider your experiences as well.
What is the best way to proceed? How do I decide on a manufacturer? Where should I start?
Which criteria should I consider besides the following?:
- Operating noise (I am very sensitive)
- KNX integration
- Intelligent, room- and demand-based control (VOC & humidity)
- Cooling/air dehumidification in summer (via earth tubes around the house/basement + heat exchanger in the supply air)
- Good accessibility for cleaning
//Key data\\
160m² (1722 ft²)
2.5 floors
3 bedrooms + 1 bathroom + 1 toilet
Open plan living-dining-kitchen area
Basement
Underfloor heating (gas)
That’s a lot of questions... I didn’t want to scatter this piece by piece. Any constructive advice is welcome.
Mycraft schrieb:
I completely disagree. Photovoltaic systems can never provide the level of comfort that I get from controlled mechanical ventilation. Everyone just has different priorities.
IMHO: Controlled mechanical ventilation first, then (if there is money left) photovoltaic systems, not the other way around. As you said, priorities are different. I can replace controlled mechanical ventilation by regularly airing out the rooms, and since we are not sensitive to noise, the few cars passing by don’t bother us. The house is also about 25m (80 feet) from the street. I definitely cannot substitute a photovoltaic system and the “benefit” it provides.
Bookstar schrieb:
People who have mechanical ventilation with heat recovery nowadays use apps and the Internet. There is no need for all that bus technology. Keep it simple.You contradict yourself. "App and Internet" and in the same sentence "keep it simple"? That really doesn’t work.
Mycraft schrieb:
You are contradicting yourself. "App and internet" and in the same sentence "keep it simple"? That really doesn’t work.Seriously? Installing an app on a smartphone presents you with insurmountable challenges? I don’t know about that!Ybias78 schrieb:
As you said, the priorities lie elsewhere. I can replace a mechanical ventilation system with regular airing, and since we are not sensitive to noise, a few passing cars don’t bother us. The house is also about 25m (80 feet) away from the road. I definitely can’t replace a photovoltaic system or the “profit” from it. I don’t quite understand the point here.
What does a photovoltaic system have to do with a mechanical ventilation system?
Is it the same as comparing a garage to a patio roof?
Honestly… The advantages of a mechanical ventilation system are obvious—many of them relate to comfort, but not only that. Either the 10,000€ (about $11,000) investment is worth it to you (35% refunded through incentives when combined with an air-to-water heat pump) or it isn’t.
The same applies to the photovoltaic system… I still think retrofitting photovoltaic panels makes sense in the future. But a central ventilation system cannot be retrofitted later on.
If battery storage for photovoltaic systems becomes affordable, then installing photovoltaic panels later also makes sense (I can already have conduit pipes installed now).
Similar topics