ᐅ Experience with ground source heat pumps???

Hello
I am planning to build this year :-). Has anyone installed the so-called "ice heating" system and can share their experience here??

I have no experience with this. However, I do recall this topic: https://www.hausbau-forum.de/threads/heizen-mit-eis-eisheizung-fuer-efh.8541/#post-50083

Maybe you will find some initial information here that could be relevant for you.