Construction costs are currently skyrocketing

It would have been really interesting if EH40 had become mandatory.

And if you build without stones, but with wood, then the step to a passive house is not far either. But somehow you don't read anything about the product anymore. But there seem to be many of these "steps" in construction, and at the moment it's not progressing very well when you have to finance the money expensively.

It would have been really interesting if EH40 had become mandatory. And if you build not with stones but with wood, then the step to the passive house is not far either. But somehow you don’t read anything about the product anymore. But there seem to be many of these "steps" in construction, and currently, progress is not going so well when you have to finance the money expensively.

A passive house corresponds essentially to the current KfW40 house. There are only marginal differences - including in the total energy consumption (including requirements for household electricity, which must be met in the passive house). And of course also the official certification (which of course costs a lot of money again). Therefore, it no longer makes sense to build or designate formal passive houses if you build an almost identical house with KfW 40, which is cheaper.

An anecdote on the topic of Passive House:

At the end of last week, we received our wood stove. The stove installer asked if we also have a Passive House, because a week earlier he had installed two stoves in one afterwards. Allegedly, the residents couldn't get the room temperature above +18° on some days :)

An anecdote on the topic of Passive House:

At the end of last week we received our wood stove. The stove builder asked if we also had a Passive House, because a week earlier he had installed two stoves in a retrofit. Allegedly, the occupants couldn’t get the room temperature above +18° on some days :)

Why should that be the case? I have a Passive House and yesterday I had between 21 and 22 degrees. However, I still set the heat pump one degree higher ;-)
Could it possibly be about Passive House owners who thought a Passive House heats itself? :p:eek::oops::rolleyes:o_O

Actually, a passive house is defined in such a way that it does not require a dedicated heating system and remains warm through the recovery of waste heat. Additional heating is at most used on the few coldest days of the year. In this respect, you may have a building envelope to passive house standards, but strictly speaking, not a passive house.

Actually, a passive house is defined in such a way that it does not require a dedicated heating system and stays warm through the recovery of waste heat. Additional heating is applied at most on the few coldest days of the year. In that sense, you might have a building envelope at passive house standard, but strictly speaking, not a passive house.

You are absolutely right, of course. But if no one is there, no "waste heat" can be generated. Wasn't it around 100 watts per person? And hot water is overrated too - isn’t it?