BAFA funding for air-water heat pumps in new construction - how does it work?

No, there are exactly these 2 applications. One is "Application for funding of an efficient heat pump," which states that it must be submitted within 9 months after operation. The installer also has to fill out quite a bit.

For the other application, you are right, the innovation thing must be submitted beforehand.

Please read carefully! The page is a bit confusing. The application you mentioned is for basic funding, which only applies to existing buildings. In new construction, there is only the innovation funding and its conditions.

ok so I don't get any funding with my Rotex HPSU compact 508 with 8 KW?

If you have already ordered or even installed anything, then no.

There are standards for the calculation of the annual performance factor. In theory, one can adjust the values to achieve a better annual performance factor and say one wants 25° supply temperature and 18° room heat, etc., but whether and what is ultimately accepted is rather a matter of chance. However, the fact is that the subsidy is probably not reclaimed if the annual performance factor is not achieved in practice.

There are standards for calculating the annual performance factor. Theoretically, one can adjust the values to achieve a better annual performance factor and say you want 25° supply temperature and 18° room temperature, etc.. but whether and what is ultimately accepted is more like a lottery..

It can be done, but that was not the case for us. As far as I understand, it is about the fact that, for example, the HRV factor through the controlled residential ventilation part is not included in the calculations.

If you have already ordered or even installed anything, then no.

Well, the shell is almost completed with the developer and the Rotex also comes from the developer, so it is actually too late.

I played around with the annual performance factor calculator on the Rotex homepage. I can't get to 4.5 no matter how I turn it. So it's settled anyway. Thank you very much