Which heating system for the new building (prefabricated house)

We don't have gas, so that's out of the question. I am generally set up in a way that I don't want to supply any fuels from outside (gas, wood, oil). However, if a house becomes disproportionately more expensive for me due to the better insulation (KfW40) compared to the KfW55, I might have to rethink. The question with the geothermal baskets would be whether they only work in combination with a 40 standard house or if the efficiency would be sufficient for a 55...

Thanks Yes, it would sometimes be helpful. We don’t have gas, so that’s out of the question. I am generally set up so that I actually don’t want to supply any fuels from outside (gas, wood, oil). But if a house becomes disproportionately more expensive for me due to the higher insulation (KfW40) compared to KfW55, I might have to rethink. The question with the geothermal baskets would be whether they only work in combination with a 40 house or if the efficiency would be sufficient for a 55...

Yes, that worries me a lot too. Above all, if possible, I want to avoid an air heat pump (air heat pump). Gas would be nice, but it would have the disadvantage of photovoltaics (domestic hot water) on the roof... especially since the idea of a relatively self-sufficient house, particularly with regard to current regulations, is becoming increasingly attractive. I once watched a one-hour video on the subject of heat pumps and ventilation systems... very interesting. Despite everything, it would be very exciting for me to talk to someone who has nevertheless opted for gas.

Yes, that worries me a lot too. Above all, I want to avoid an air heat pump (Luftwärmepumpe) if possible. Gas would be nice, but it has the disadvantage of photovoltaic (domestic hot water) on the roof... especially since the idea of a relatively self-sufficient house is becoming increasingly appealing, particularly with regard to the current regulations. I once watched a one-hour video on the topic of heat pumps and ventilation systems... very interesting. Despite everything, it would be very exciting for me to talk to someone who still opted for gas.

Can you post the link to the video? Then I'll take a look at it too... As soon as I have all the basic data for the house together, I will visit a heating engineer and get advice there. Let's see what they think.

Can you post the link to the video? Then I'll have a look at it too... As soon as I have all the key data for the house together, I will visit a heating engineer and get advice there. Let's see what they think

PN

I think the video would certainly be interesting for others as well

Hope it is not about the well-known conspiracy theories