Build a gas heater today?

Hi, in the photovoltaics forum, the combination of photovoltaics + heat pump is often discussed. It is almost generally advised against using storage because the (energy) storage is the underfloor heating or the storage of the heat pump. Furthermore, such a small system is almost useless with a heat pump (winter / summer problem). Probably better: roof fully covered with photovoltaics, battery storage only if very cheap because subsidized or with the understanding that storage is an expensive hobby but ecologically probably good (self-sufficiency, less electricity from fossil fuels etc.) But that is borderline (eco aspect)

The EP [should] also be good to at least roughly assess the offer: What does the heat pump cost (and what exactly is included in the offer), how expensive is the photovoltaics and what does the storage cost? (Also here: have the photovoltaics offer checked in the photovoltaics forum, there are usually suggestions for optimized systems)

This is the core of the problem.

I found it anyway.