Masonry from Ytong 24 or 30 for single-family house?

You can gladly do an experiment. Take a 12cm thick Styrofoam board, place it in front of a wall, drill a hole through it into the masonry. Insert a plug and a screw, and then attach a coat hook to it. Hang jackets on it. Let's see how long it holds ;)

To prove what? Completely unrelated.

@ If anything, the network operator occasionally "switches off" or throttles power at night when the heat pump + eCar consume too much at night. Even if it is initially about introducing a dynamic electricity price and raising the price during these peak times.

In the medium term, this will also happen beyond driving and heating electricity. Dynamic prices are the first step and the attempt to achieve this on a "voluntary" basis. If that is predictably going to fail, some obligations will come and major consumers will have to communicate with the electricity meter. In practice, night consumption is unlikely to be much of a problem for the foreseeable future because less is running in industry and commerce at that time. Fossil power plants will accompany us much longer than expected because in winter, every lull is automatically also a dark doldrum.

To prove what? Completely unrelated.

Didn't you do something like that in your studies... sorry, in your training... uh, in your internship?
Have you ever held Styrofoam in your hands? The question is now seriously meant...

No, seriously... really now.
Do you know how the principle of the screw connection works? I'm seriously worried.

Have you never done something like that in your studies... excuse me, in the traineeship... uh, in the internship?
Have you ever held styrofoam in your hand? The question is now quite serious...

No, seriously... now really.
Do you know how the principle of screw connections works? I am genuinely concerned.

Hello, Mr. Studienrat, just consult a datasheet of a corresponding anchor and educate yourself instead of spreading your crude theories. Unlike you, we have not been living behind the moon for decades.

What is particularly noteworthy, by the way, are the significantly lower weights that such anchors achieve in aerated concrete compared to, for example, sand-lime brick behind ETICS.

Just as a note: Anyone in new construction with an air-to-water heat pump performing worse than a seasonal performance factor of 4 either lives on a mountain or the settings and design are garbage. Incidentally, for an effective operation of a heat pump, a low [VLT] is crucial. Everything else is secondary.