Construction costs are currently skyrocketing

I think there has to be a radical market cleanup. Due to the abolition of the obligation to file for insolvency, the low interest rates, and government support in recent years, there are many market participants who would have been gone long ago.

I can rather imagine that one would then see vehicles from another EU country on the construction site more often again. We also once had a very friendly Romanian with his girlfriend on a Saturday who set a few battens for us, but I think he was only paid according to the national standard

Not only because of the prices, but also because of availability. I have been waiting for the interior plasterer for almost 5 weeks now. If I could (turnkey from the general contractor) I would also get Romanians who would slap the stuff on the walls for me in 3 days... I can sand it myself afterwards...

But the whole process and especially the heating up keeps being delayed further into the cold autumn. It is maddening.

But the whole process, especially the heating up, keeps getting delayed further into the cold autumn. It is really frustrating.

On the other hand, in autumn you can ventilate the moisture out better and possibly save on expensive drying equipment. The house is insulated anyway.

On the other hand, in autumn you can ventilate the moisture out better and may save yourself the expensive dehumidifiers. The house is insulated anyway

As far as I understand, in autumn only the duration necessary to ventilate for the same effect is reduced. I am also ventilating my expensively paid heating warmth to the outside...

At the moment, thanks to the chip crisis, I have time to ventilate 2 or 3 times a day for half an hour or even longer. Without losing the warmth... therefore very, very annoying...

Depends on the temperature you heat to. The ability to absorb moisture occurs mainly through the warming of the outside air. That’s why the air gets dry in winter; 0-degree cold outside air (no matter the humidity) is always dry when warmed to 20 degrees. Simply exchanging 30-degree warm air inside with equally warm air outside doesn’t do much, at best on very dry days. Often in summer it is also humid, so you bring in moist air that is hardly warmed anymore.

Well, it will hardly be as damp outside as in a house that has just received interior plaster and screed, so it would do some good, although no miracles.
I would only heat with a portable heater anyway; when my proper heating system will arrive is written in the stars. Maybe later this year, maybe not...
Even if it doesn't do much good, it would be nice if one could at least spend the time until then airing out. Then you feel as if you were doing something useful...