Hmm, so the property doesn't have any trees or anything, so that probably won't be a problem for now - but I assume you can't plant anything there or build on it? Which might be a bit of a shame, trees were actually planned. I didn't know that the roots could actually be a problem. Should I contact the manufacturer right away, and then they look at the site and tell me what they would recommend? I already got a great overview above, thanks for that. Regarding maintenance, are the different types of heat pumps also varying in effort and cost? Or how do the running costs differ? I actually found the air heat pump appealing, but with that you have such a box, which – I assume – is directly attached to the house? And many here also seem to like a brine heat pump. Maybe I really need to get in touch with a provider, do you have any recommendations for that? Which manufacturers are your pumps from and are you satisfied? It's an investment after all, so you want something decent.
Regarding the photovoltaics, we probably need to think that through more carefully, I assume you can add it later if you want.