How much should a new gas boiler cost?

Is really no one interested in something like the future? Everyone over 80? No children? I also don't quite understand why people always talk about "ideology" when the topic is addressed. There can hardly be anything less ideological than climate change.

Whoever has no children does the most for the future of the Earth ;) Whoever is so missionary should also live accordingly. Internet use should then also be avoided. It consumes too many resources...

Completely free of ideology? I always see things pragmatically. Gas will still be indispensable in Germany in 10-15 and even in 20 years. Almost half of all households here heat with gas. It is the number 1 energy source for heating systems. You simply cannot ignore that. According to operators, most systems were installed in the last 10-20 years. So they will also be operated until the end.

Who says that gas will still be reliably available and affordable in 10 or even just 5 years?

The infrastructure says so. A complete switch will be impossible neither in 5 nor in 10 years. Heat pumps haven’t just appeared yesterday either. Despite subsidies and mature technology, we have just barely passed the ~5% hurdle. But actually not even really.

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With gas and the prevailing zeitgeist, I find that a risky bet.

At the moment we are experiencing a hiccup. That will pass.

Besides, I can always easily produce and store electricity myself,

Which in turn means investments, let’s not kid ourselves, even with the increased gas price that has only just come into effect, they will be made after decades have passed. In addition, not everyone can put as much on their roof as is “necessary” to be economical.

Doesn’t anyone really care about something like the future?

Yes, of course, but without fanaticism.

Obviously, some people are not aware of the extent of the problem. But well. Meanwhile, the OP has certainly noticed both perspectives and both options for heating living spaces. He is allowed to make decisions himself. We will surely be happy to come back when it comes to questions about implementation. I wish much success and a warm place.

Edit: , basically we agree, we just draw different conclusions.

No, seriously: we have to be climate neutral in 15 years. That can't work with gas.

Who is your "we"?

see
Tagesschau
22.09.2021
"Xi emphasized in his speech that the People's Republic will be a climate-neutral country by 2060. China will also strive to reduce CO2 emissions by at the latest [B]by 2030 for the first time[/B]. But until then ... carbon dioxide emissions in the People's Republic will continue to rise year after year. New coal power plants will continue to be built in China itself."

IF you want to make a difference and save the world:
then go to China and hold a vigil in front of Xi's presidential palace!

Of course, we agree. I just see that switching old stinkers (gas, oil, and whatever else is burned) to modern gas systems and heat pumps is the way to go, always with the thought that if a heat pump is sensible and economical, then it should be preferred. Not with a heavy hand, but approaching the matter with sense and understanding.

But this is hardly possible, for example, in multi-family houses and also for many new home builders... not everyone can afford a house where a heat pump really makes sense. Let's not kid ourselves. Large housing contractors, for example, only build according to the Building Energy Act (Energy Saving Ordinance), certainly 40+ etc. is possible here but not necessarily desired or feasible for the house buyer at all. Of course, one could say that they shouldn't build a house at all. But who are we to dictate that to someone.

Also, a heat pump in a house that is not designed or prepared for it (meaning the majority of existing buildings) is a nightmare and often has the opposite effect because then the heating rod ends up running more often than one would like. After all, nobody wants to freeze.

But of course, if you have a heat demand of 55 or less, it is worth considering a heat pump and then actually choosing it. Actually, even starting at 70, you can’t draw a hard line and each case must be considered individually.

Other countries are still behind the times and consider the heat pump generally as something fantastically advanced (as the main heating system for houses and apartments), and even the condensing boiler established here is futuristic for many and is rarely installed because the heat-value boiler (which we've long considered scrap metal here) is the method of choice.