Construction costs are currently skyrocketing

There are also cases where photovoltaics are not useful at all due to shading from neighboring trees, because no sun hits the roof and thus no significant yield is generated. I wonder, what do you do in that case if you want or have to move away from gas? Hope for district heating?

Photovoltaics are a nice bonus but not a prerequisite for a heat pump. It works well without it, and in mid-winter you have little yield anyway. Heating networks are certainly a good idea in densely built-up areas and will certainly come there first (apart from newly developed districts that are planned with this from the start). In existing single-family home neighborhoods, I would not first count on that happening.

Electricity from the neighbor's photovoltaic system, electricity from the solar park on the field, electricity from the wind turbine, eventually electricity from fusion/whatever.

A gas heating system can only burn gas, an oil heating system only oil. If that's all there is, it gets cold. Can I extract gas myself? Or oil? Probably not. Can I produce electricity myself? Absolutely! Hello private power.

Can I use the gas that I don't use for heating for my car, my lighting, or my refrigerator? No. Electricity? Yes.

It's shocking what you are spouting:
1) The photovoltaic system is not sufficient in the critical months to supply the heat pump. If everyone had a heat pump, we would have a power problem!
2) Your electricity is also partly generated from gas or coal power plants
3) A gas heating system can also be used in the future with synthetically produced substances like hydrogen or methane or whatever – hopefully economically viable in the future
4) Gas can be stored in larger quantities compared to electricity

Conclusion: Heat pumps are nice and all, but demonizing everything else is also not good.

And by the way, apropos environment: better check whether the heat pump actually contains PFAS, which is an environmental disaster – but as long as you can bash gas.

Also, one more thing: Environmental protection involves more than just saving CO2. Please also pay attention to a biodiverse garden (That means no 100m2 towel garden with a neat lawn without flowers and a paved driveway until not a blade of grass is visible) - This is exactly the case in my neighborhood with almost all "new buildings."

apropo Umwelt:

Yes exactly, where do you read any of that in Heimatbauer's argument? The "eco drawer" seems to automatically open when someone gets or even just considers a photovoltaic system/heat pump/BEV.

Yes exactly, where do you read anything about that in Heimatbauer's argument? I guess the "eco drawer" automatically opens whenever someone gets themselves a photovoltaic system/heat pump/BEV or even just dabbles with the idea.

We are also planning to get a photovoltaic system (combined with a new roof if necessary) and a BEV (combined with a new car if necessary). No heat pump for now due to no necessity in the old building – what bothers me is just this morally elevated argumentation without a view of the bigger picture. And secretly, they only installed it because there was a subsidy and not out of conviction. For me, CO2 reduction and environmental protection generally go hand in hand. By the way, one should also critically question private meat consumption. After a quick Google search, it accounts for almost as much as heating (I’m actually surprised myself). Well then, happy heating!!

By the way, one should also critically question their private meat consumption.

Why is that? Homo sapiens is naturally a meat eater.

I don’t get caught up in any green nonsense. Nothing is questioned there at all.