Installation of heat pump/heating - before or after screed

Is it even about an internal constellation? In that case, I have no idea. ;-)

You then place the heat pump on the bare concrete floor and pour the screed around it?

No, I follow the manufacturer's instructions and you are also allowed to use your brain, that doesn't hurt either.

But anyway. Definitely before the screed is brought into the house.

No, I do it according to the manufacturer's specifications

So, on a composite screed pedestal or similar.

You are also allowed to use your brain, that doesn't hurt either.

Then just give the OP information on how to do it and don't make yourself pull information out of your nose first ;)

So on composite screed pedestal or similar.

For all I care, also with the help of Siemens air hooks. The question from the OP is not how exactly and with what means but simply: When?

Then just give the OP information on how to do it and don’t wait to have info dragged out of you.

I have already done that twice now in this thread. Before the screed.

Our screed installer informed us: Earliest! after 3 weeks screed can be heated/dried via heat pump. Since we do not yet have a heat pump and it will probably take at least another 4-5 weeks to arrive, I asked in detail. This is also no problem, just not before three weeks after installation. We should keep the windows tilted open for the first three days (no draft), then ventilate once or twice a day for 15-20 minutes each. By the way, it is cement screed without additives. I suspect it all depends on the type of screed and the additives used when and how heating should/may be done?

I suspect it all depends on the type of screed and the additives used when and how heating should/may be done?

Yep. For me: After 24 hours 20° for 48 hours. Then 25° for 48 hours. Then 40° for four or five days. Or until the measurement says "dry enough." So after about 10 days it was dry, thanks to the accelerator.