Energy Saving Ordinance 2014 - Gas boiler without solar?

Hello,

Heat pumps consume a lot of electricity,

Aha - and the pump of your gas condensing boiler runs on air and love?

which mostly also consists of nuclear power or fossil fuels and due to losses in production only 1/3 reaches the end customer, I don’t know what is supposed to be more environmentally friendly about that.

The share of renewable electricity generation has increased significantly; as a result, the primary energy factor for electricity will be lowered to 1.8 from January 16.

You are pursuing the ostrich strategy if you ignore the extraction, transport, losses (GUS and North America each with about a quarter of the world’s production) as well as the dangers of natural gas extraction (including offshore). I don’t even want to bring up the topic of fracking in this discussion ....

**Assuming that the current natural gas consumption remains constant, the currently known natural gas reserves would be depleted in 60 years. With the current growth rate of consumption of 2.8% per year, the availability shortens to only 36 years.

**Source: Regenerative Zukunft

Rhineland greetings

Hello,


Aha – and the pump of your gas condensing boiler runs on air and love?


The share of renewable electricity generation has increased significantly; accordingly, the primary energy factor for electricity will be reduced to 1.8 from January 16.

You are following the ostrich strategy if you sweep extraction, transport, losses (GUS and North America each with about a quarter of the world production) as well as the hazards of natural gas extraction (including offshore) under the carpet. I don't even want to bring the topic of fracking into the discussion....

**Assuming that the previous natural gas consumption remains constant, the currently known natural gas reserves would be depleted in 60 years. With the current consumption growth rate of 2.8% per year, the lifespan shortens to only 36 years.

**Source: Regenerative Zukunft

Rhenish greetings

Hello Bauexperte.
That is not the topic here.
Moreover, your explanations regarding natural gas and its availability are quite nonsense.
The lifespan of raw material reserves is always given statically. That’s what you did with the 60 years.
If one applied a dynamic consideration (taking into account the consumption increase you mentioned), the lifespan of the natural gas resource could certainly be estimated at 1000 years. Oil 300 years, coal 2000 years, uranium 30000 years.
Reserves and resources are two different perspectives.
Reserves are deposits that are economically mineable according to the current state of technology. Resources, on the other hand, are deposits that are proven to exist but cannot currently be economically extracted. Fracking, which has been in use in Germany for over 60 years, is one reason for a shift from resources to reserves.
And for gas the primary energy factor is also 1.1, which covers transport, processing, etc.

Hello,

Reserves and resources are two different ways of looking at things.

Yep, that's why I should have added that for the sake of completeness.

I will spare myself from addressing the rest, as it would also lead this thread off-topic. What I was getting at – and this is the only reason I responded to 'Passive House' – is that there are no blessings without drawbacks.

Rhineland regards

The surcharge from kfw70 with gas to kfw 70 with heat pump was still 4000€

This is presumably without taking ancillary construction costs into account. In our case (developer, so including all ancillary costs), gas (+ solar thermal) would at best have been identical or more expensive than the air-water heat pump -- or the developer was too lazy to calculate. In any case, you can deduct the gas connection from the above 4000 euros (exception: you need it for cooking ...). And with Kfw 70 with air-water heat pump, you don't need solar thermal, which also costs a lot of money. Heat pumps are not that expensive after all.

Or ... your provider designs the underfloor heating differently for gas and saves money there again, but you really don't want that ....

If money were no object, pellet heating would be my favorite, but from everything you read in the NEH it is not profitable.

According to our current information, the additional cost for a pellet heating system compared to gas condensing is no longer that high. Currently, you receive a subsidy of €3000 from BAFA, with a buffer storage even €3500. In addition, you save on solar thermal/photovoltaics by about €4000. We also save an additional gas connection cost of about €2500. Altogether, that makes €10000 more that the pellet system may cost.

However, there is actually also the cost for the storage space. A cellar is almost necessarily required for that.