CO2 Carbon Footprint Gas Heating vs. Heat Pump in New Buildings

First, I would check the offers ... regarding the price aspect.

and then ... we simply cannot afford to keep blowing CO2 into the air. That should be avoided wherever possible, because I quote

Many have also not understood this when it comes to the net-zero principle. It is really about zero emissions, to achieve declining global values. Not stable global values.

if I compensate for the additional CO2 emissions of a gas heating system over 20 years, it costs me about 800 euros.

You calculate today’s price projected over 20 years, you could already have to pay 800€ annually in 10 years and 2000€ in 20 years, just as an example for your rosy calculations.

- In a 300 sqm KfW-55 house (minimum standard 2024, energy efficiency class A with 40 kWh/m2/year), the additional CO2 emissions of a gas heating system compared to a heat pump amount to about 1.6 tons of CO2 per year. (Calculation: Gas: 300 m2 × 40 kWh/m2/year = 12,000 kWh/year; 12,000 kWh × 0.202 kg CO2/kWh = 2,424 kg CO2/year; Heat pump - seasonal performance factor 4.5, German electricity mix 300g CO2 per kWh: 12,000 kWh / 4.5 = 3,429 kWh/year; 3,429 kWh × 0.3 kg CO2/kWh = 1,028.7 kg CO2/year => 2,424 kg CO2/year − 1,028.7 kg CO2/year = 1,395.3 kg CO2/year)

Roughly this can be right currently.
Small errors may be that the electricity consumption of the gas heating system, pumps, etc. are not considered.
Also, that the electricity mix in Germany will improve in the future and can be significantly improved locally through own photovoltaic systems.

- The compensation of 1.6 tons of CO2 costs 40 euros at atmosfair. 2 tons cost 50 euros.

Unfortunately, these are just indulgences that do not actually remove CO2.
Real compensation can be done with Direct Air Capture (DAC).
Unfortunately, not yet on a large scale and costs currently about 1000€/t!
It should become cheaper, going down to up to 200€/t.
But even then, real compensation would still cost at least 300€/year.

- A heat pump costs around 35,000 euros in 2024, a gas heating system about 15,000 euros. (no direct subsidy for heat pumps in new buildings).

Here it really gets very strange.
A current monoblock from a German manufacturer currently costs 5,000€.
A good Korean model maybe 3,000€. That also costs a gas heating system.
And now connecting a device with gas, exhaust system, etc. is supposed to be cheaper than placing a monoblock outside, connecting water and electricity?

If you calculate with moon prices, no meaningful comparison is possible anymore.

I am quite sure that one can install a heat pump in new buildings at the same price as a gas heating system.
Let's just say that the pedestal and so on cost just as much as a gas connection to the house and you end up at about break-even.

So here is my calculation:
Price difference for acquisition: 0€
Maintenance/cleaning of gas heating: 200€/year
Chimney sweep: 50€/year
Cost of gas meter: 20€/year
Additional cost of gas compared to electricity: 12,000 kWh * (12 ct/kWh (gas) - 41 ct/kWh / 4.5 SPF (electricity)) = 346€/year

So now the gas heating is already 616€ per year more expensive.

And now another 1,400€ per year for the CO2 storage.
Thus, one is simply at over 2,000€ per year in additional costs for a gas heating system.

Ah, and photovoltaic is not even included yet, which would significantly shift both the additional costs for gas as well as the CO2 compensation. So the calculation for the heat pump can be further optimized, but here we want to stick to heating systems.

CO² footprint!

When I already read this nonsense, I just want to switch off. It's exactly my kind of humor to build a huge house with 300 sqm and think about the individual CO² footprint. Why not also discuss the three annual flights or the three combustion engine cars in front of the house. And preferably drive every meter by car.

You can start with that tomorrow. No meat, no dairy products, no more car use, no travel, small houses. A room height of 2.05m is completely sufficient. Everything else is luxury.

I already suspected it here. Decarbonization means deindustrialization of Germany, and we are well on our way. A reason to be happy in our left-green society.

And whether a few hundred thousand heat pumps will save the world climate? I don’t know.

A spokeswoman from Foofwatch recently even demanded on the radio that the number of dairy cows in Germany should be reduced by half. Because of the environmentally harmful emissions of the cattle. Sure, you can do that.

And please don’t eat cheese anymore either. Its CO² footprint is also terrible. After most smaller dairies have been closed, there are only a few big ones left. The milk is driven hundreds of kilometers there, where the cheese is then produced. From there the cheese is driven to the Baltics or to Russia where it is cut and packaged. Then it comes back to Germany and is distributed into the discounters’ warehouses.

Why there still have to be apples from New Zealand in Edeka at the beginning of September, the main season for apples from Germany, I don’t know either. Or cherries from Peru in February.

For me, these are all alibi discussions.

Why not also discuss the 3 times happening air travel or the 3 combustion engine cars in front of the door. And best of all, drive every meter by car.

Let's do that. But in other forums. Here is a design forum, we discuss construction topics.

I had already suspected it here. Decarbonization means the deindustrialization of Germany, we are well on our way. A reason to rejoice in our left-green society. And whether a few hundred thousand heat pumps will save the world climate? I don’t know.

Here it is again. The bitterness.

A spokeswoman from Foofwatch recently demanded on the radio that the number of dairy cows in Germany be reduced by half because of the environmentally harmful emissions of the cattle. Sure, you can do that.

P.S. In New Zealand, a methane tax was discussed, in Ireland the killing of tens of thousands of cattle was debated. Other countries are already much further than we are in Germany

You calculate today's price up to 20 years, You could already have to pay 800€ annually in 10 years and 2000€ in 20 years, just as an example of your wishful thinking

I believe there is actually a misunderstanding here, in my opinion it is not a mistake in the calculation nor a projection over 20 years. The 800 euros would have to be paid today for the entire additional CO2 emissions of the gas heating over the lifespan of 20 years, i.e. I am already paying off my entire CO2 footprint in advance. Ok, if someone now comes and says ... but CO2 today is less harmful than in 20 years, well.