How much should a new gas boiler cost?

your post about the heat pump was purely monetary. What you pay, etc. Good that you try to keep your footprint small. Respect for giving up cruises. I don’t do cruises but wouldn’t give them up if it was that important to me. Is your old car broken? Or do you want to switch from a still roadworthy one to an electric car? That would make little environmental sense. At 2000km/year you could probably just take a taxi :p

In other words, you recommend "decimating humanity" (by whatever means) and living barracks. Maybe you should go into politics?! Your last paragraph is by the way simply a lie and - as always - not supported by numbers.

Your heat pump consumes energy. Your house construction consumed a lot of energy and resources. So it can never be compensated. If you want to read up on the topic of children, look up birthstrike on Google. A child currently has about 58 tons of CO2 emissions per year over their entire life. So 10 times more than a car per year.

To clarify again: I grant everyone the right to family planning and do not want to influence anyone in any way. The question is where you start. Normally with the things that have a big impact and not those that make up 0.0000x%. As harsh as it is. Childless people are actually the "Greens." However, childless people are certainly not childless for this reason.

So I can still understand the topic change from gas heating to heat pump heating, but what do children, house construction as a whole, cruises, and cars have to do with it again? The idea that gas is generally better than a heat pump in large houses unfortunately lacks any logic.

Just calculate objectively how the costs in acquisition and consumption are for each type of heating and if they are (as expected) close to each other, gladly choose the environmentally friendly technology.