Is a gas boiler possible without solar?

In our case, the compliance with the Energy Saving Ordinance was indeed checked by the building authority.

Based on the plans at submission or after completion through an on-site appointment? Did you let them into your house?

As wpic already said, the proof must be submitted afterwards. In our case, through calculation by the general contractor and confirmation of my signature.

In our case, the written request from the building authority came three years after the first owners moved in.

@TE: In reality, probably nothing will happen if you simply do not install a solar system. Hopefully, the building authority will have more important things to do than to check such petty stuff. Only if you have one of those super nitpickers/wannabe block wardens in your neighborhood who spend their free time checking whether their neighbors are properly separating their trash or if possibly a scrap of paper ended up in your yellow bag, you might get into trouble. And unfortunately, there are quite a few of those guys....


A stupid thought: If I understood correctly, during all chimney sweeper inspections, only the proper functioning/exhaust temperatures/exhaust values of the actual heating system are checked. So if you really just nail a solar thermal dummy to the roof, you should technically already have left the legal gray area towards legality...?

With that, you have installed a ST. That the thing must actually work is not stated anywhere, right?!? You are also allowed to turn off the circulation pump of your functioning solar thermal system and thus take it out of operation.


It is less problematic to just bite the bullet and throw the money for the ST out the window. Since you have to provide the pipes and the bivalent heat storage anyway, it’s not 5000 but probably only 3000 euros.


Best regards,


Andreas

If you really just nail a solar thermal dummy on the roof ...

If it weren't for the annoying proof that the requirements of the Energy Saving Ordinance/the EEWärmG have been complied with .... Rhenish greetings

Regarding the 85% rule (gas boiler without solar thermal due to falling below the Energy Saving Ordinance limits by 15%), there is another thread, by the way:

@TE: Probably nothing will happen if you simply do not install a solar system. Hopefully, the building authority will have more important things to do than to check such small nonsense. Only if you have some kind of super nitpicker/ wannabe block warden in your neighborhood who spends their free time checking whether their neighbors are diligently separating their waste or if perhaps a scrap of paper ended up in your yellow bag, you might get into trouble. And unfortunately, such types occur quite often....

Hm - in our case, the building authority went through the development area and took a look at quite a few things. This also led to a builder being instructed to completely remove and reinstall his roof due to an excessively large roof overhang. Whether he could avoid this or possibly convert it into a fine, I do not know - but the building authority is not as stupid and blind as some people like to think.