Hello everyone,
maybe someone here can give us a good tip, as we are quite uncertain about a ventilation system.
We are planning to build a house (solid construction) according to KfW 70 standards, with underfloor heating, a fireplace, and a solar system. That much is already decided.
We received an offer from Company A for a ventilation system with heat recovery, and the salesperson recommended it to us.
At Company B, the ventilation system is significantly more expensive, and the salesperson told us that since the house is so well insulated, moisture would not be an issue... where would it come from? The rest could be regulated by normal airing anyway.
(I also think he realized that his ventilation system would have blown our budget and now I worry that he advised us against it just for that reason!)
My husband and I are laypersons, but my instinct tells me that the better the house is insulated, the more problems I would have getting rid of moisture and stale air inside the house, right?
After all, a blower door test does show that there is very little air circulation.
Am I completely wrong?
We are a bit torn now, since such a system is not exactly cheap! But is it necessary, or just a nice extra?
Thank you very much for your help!
maybe someone here can give us a good tip, as we are quite uncertain about a ventilation system.
We are planning to build a house (solid construction) according to KfW 70 standards, with underfloor heating, a fireplace, and a solar system. That much is already decided.
We received an offer from Company A for a ventilation system with heat recovery, and the salesperson recommended it to us.
At Company B, the ventilation system is significantly more expensive, and the salesperson told us that since the house is so well insulated, moisture would not be an issue... where would it come from? The rest could be regulated by normal airing anyway.
(I also think he realized that his ventilation system would have blown our budget and now I worry that he advised us against it just for that reason!)
My husband and I are laypersons, but my instinct tells me that the better the house is insulated, the more problems I would have getting rid of moisture and stale air inside the house, right?
After all, a blower door test does show that there is very little air circulation.
Am I completely wrong?
We are a bit torn now, since such a system is not exactly cheap! But is it necessary, or just a nice extra?
Thank you very much for your help!
N
nordanney30 Apr 2014 14:00cuhnie schrieb:
However, many do not plan for access panels to clean the air ducts. After a few years, the inside of these ducts doesn't look very appealing. Access panels are very difficult to implement when the ducts, for example, are embedded in a concrete ceiling and run radially toward a single point...
That wouldn’t be possible in our case.
D
DerBjoern30 Apr 2014 14:03nordanney schrieb:
Access openings are quite difficult to implement when the ducts, for example, are embedded in a concrete ceiling and converge radially to a single point...
That wouldn’t be possible in our case.In such configurations, however, a pull-through brush usually suffices.
D
DerBjoern30 Apr 2014 14:23With suitably long pull cables, that should also work.
You are aware of these maintenance tasks.
And if you can perform them yourself, that’s perfect.
However, these points are not mentioned when selling such a system.
I was always told: The system is maintenance-free except for changing the filter.
In my opinion, it should be clear that the system needs to be kept in good condition.
I see the main advantage of the system in the increased comfort it provides.
However, you don’t actually get fresh air in the house in the true sense. In a car, air is also drawn in through filters. And it is different from opening a window.
And if you can perform them yourself, that’s perfect.
However, these points are not mentioned when selling such a system.
I was always told: The system is maintenance-free except for changing the filter.
In my opinion, it should be clear that the system needs to be kept in good condition.
I see the main advantage of the system in the increased comfort it provides.
However, you don’t actually get fresh air in the house in the true sense. In a car, air is also drawn in through filters. And it is different from opening a window.
D
DerBjoern30 Apr 2014 14:39cuhnie schrieb:
I was always told: The system is maintenance-free except for changing the filter. It is mostly true if you use filters. Completely maintenance-free, of course not. Nothing is completely maintenance-free...However, you don’t get fresh air in the house in that sense. In a car, the air is also drawn in through filters. And it’s different from opening a window.Yes, with a filter, the dirt and pollen are missing from the air...
Of course, the fresh air you get with a mechanical ventilation system with heat recovery in your house really is fresh air! Absolutely!
At first, I also didn’t want mechanical ventilation with heat recovery. Until my employer put me in a building with mechanical ventilation with heat recovery. Then I realized: "Never without it again!"
B
BauProjekt1430 Apr 2014 20:16Fresh is often confused with cold...
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