Air heat pump and electricity consumption

I myself am also not entirely convinced by the idea. In 10 years, you can then wait another 5 years because everything is more efficient and affordable. Then you can never buy... [Schornstein] - a stove is planned anyway.

I need more details.

My father recommends the gas condensing boiler, to then install something efficient and alternative in 10 years.

I wouldn't say 10 years now, but only when it breaks down. Otherwise, it's wasted money. Just design the rest so that all options are still available.

In my parents' house it took 28 years, or it is even still the same boiler and only the rest around it was renewed. Then it would even be 31.

I myself am not entirely convinced by the idea either. In 10 years you can wait another 5 years because everything will be more efficient and affordable. Then you can never buy... Chimney - a stove is planned anyway.

Well, if you now know what you want to do, then everything is settled

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The only ones who might have somewhat reliable forecasts for energy prices are the energy companies and possibly (energy) commodity analysts from banks (and even those only to a limited extent depending on their sources). The aforementioned will probably never reveal their cards.
Everyone else consults their crystal ball and is surprised when, after a few years (depending on the developing global economic growth), the trend suddenly goes the other way.
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Only the energy companies have a certain informational advantage. The bankers? You can see how far-sighted they are – and that they had to be bailed out by taxpayers...
Without fracking and power plays by oil producers, the situation would look different at the moment. A breakthrough in fuel cell technology could also change everything again. And then the political influences... – so complete fog in the crystal ball... – except for the probable price increases. But in what ratio which energy sources will rise? Again, a cloudy crystal ball...

It is always about heat pumps here. But as far as I understand, there are different types of heat pump systems. Does any of you have an exhaust air heat pump?