Installing air conditioning --> KFW funding gone?

Use the opportunity. Reflect once more and consider very objectively. If necessary, take a physics book and please let go of the prejudices. Air conditioners would be evil and the ultimate climate killer.

I have only (unfortunately) retrofitted so far. The rule of thumb is €1000 per kW of cooling capacity. So a 2.5 kW unit from a reputable manufacturer (Mitsubishi Electric, Daikin...) should cost under €3000. All inclusive.

Especially in a properly insulated new building, one should pay attention to the lower performance limit (just like with the heat pump for heating). If you are willing to operate the air conditioning as reasonably as the heating (turn it on, let it run), and you do not aim for 18°, you don’t need 5 kW. 2.5 to 3.5 are definitely sufficient.

Many thanks!
Does anyone perhaps have an idea of the scale of the funding amounts?

35%. However, I have not yet checked whether they are also available in new buildings. In an emergency, you just prepare...

Here it is being discussed: Edith: There are no links here. It is being discussed in the Photovoltaics forum. The thread is called: "Cool through the summer and heating support when it makes sense! Bafa subsidies of at least 35% for air conditioning systems!"