Electricity consumption at home, what is your consumption?

Mold is just the tip of the iceberg. Unfortunately, most people only understand that once they live in it.

Nice-to-have was ventilation in the 90s, today you have to install some kind of forced ventilation. Unless you have too much free time to maintain the intervals or you live with the used air as guckuck2 is currently describing.

Every time I am somewhere in a new building, you can immediately tell upon entering whether the house has ventilation or if the residents ventilate manually enough or not.

Unfortunately, the latter is the case most frequently found.

We were also informed that in the first few months (preferably the first year) we should additionally ventilate, as the new building is still damp and the controlled residential ventilation is not sufficient to "dry ventilate" the building, apparently it can’t manage that.

I am a neurotic fresh air fanatic (original quote from my wife) and have a full-blown mold phobia. But even I consider this statement exaggerated. Just run the controlled residential ventilation at level 2 throughout the first winter, and the moisture will constantly leave the place. Because of the very short construction time, we still have a lot of moisture in the solid construction, but thanks to the controlled residential ventilation, the humidity always stays in the green range. To be on the safe side regarding construction drying, I am now turning the heating one degree warmer in the first autumn/winter and for the time being have not installed an enthalpy exchanger in the controlled residential ventilation. But the windows have actually remained closed almost permanently since mid-September, except for the warm attic not connected to the controlled residential ventilation. In the latter, I can see how the construction moisture drives the humidity up if I don’t ventilate regularly.

Mold is just the tip of the iceberg. Unfortunately, most people only understand this once they live in it.

Nice-to-have was ventilation in the 90s, today you have to install some kind of forced ventilation. Unless you have too much free time to maintain the intervals or you live with the stale air as guckuck2 is currently describing.

Every time I am in a new building somewhere, you can immediately tell upon entering whether the house has ventilation or whether the residents ventilate manually enough or not.

Unfortunately, the latter is the case most often found.

So at least you have made us think. Since we are skipping cooling through underfloor heating (€3,800), we are considering installing a controlled residential ventilation system. At about €12k - 35% subsidies, that is not a big extra effort.

So at least you got us thinking. Since we are foregoing cooling via underfloor heating (€3,800), we are considering installing a controlled residential ventilation system. At around €12k - 35% subsidies, this is not a big additional expense.

Welcome to the Jehovah's Witnesses! The more stubborn the unbeliever was before, the more blissful the conversion makes us for entry into the eternal (fresh air) kingdom of heaven.

Welcome to the Jehovah's Witnesses! The more stubborn the unbeliever was before, the more blissful the conversion makes us for entrance into the eternal (fresh air) kingdom of heaven.

Don't say that. My father was a Jehovah's Witness. I definitely don't want to be in their "kingdom of heaven."

I am a neurotic fresh air fanatic

Same here. For this reason also controlled residential ventilation. So there is peace of mind and always fresh air throughout the whole house and not just in certain areas. On the other hand, some neighbors have to keep their windows constantly open (not just tilted but fully open) because there is no other way. Last month, someone even approached me asking if we could do something about it. But then also immediately with air conditioning, because in summer it’s just too warm.