Experiences with the installation spacing of underfloor heating pipes?

Good morning,

there are a variety of threads concerning the installation spacing for underfloor heating, which I have already gone through, but the following question could only be answered to a limited extent: What experiences have homeowners who have already moved in made (the "practical" experience, so to speak), specifically regarding the installation spacing of the underfloor heating? Would you do your approach the same way next time or differently (e.g., closer installation spacing; spiral installation or meander installation)?

Maybe there are experiences here that can save those who are still facing this task from making mistakes ;-)

Best regards
Jochen

This answer can only be given to you by your energy consultant! You can generally say as tight as possible in the bathroom. What surprised me is that you don't notice the underfloor heating when standing barefoot on the floor.

yes otherwise it would be much too hot in the house... these days low-temperature heating systems and energy-saving houses are usually built... moreover, heat loss through transmission is limited since temperatures below minus ten degrees are rarely present outside in most parts of the country... all this means that the underfloor heating can keep the house very well and cheaply at temperature while barely being noticeable with bare feet...

Somehow, dealing with energy consultants almost feels like dealing with doctors. Ask two and you get four opinions.

Maybe a bit more specific: Is there anyone who, for example, has also installed a 10cm gap in the bathroom and would do it again? Another question would be if there is someone who has used meander installation for the living areas and if the heat distribution is also completely okay with that.

Maybe one should talk to the planner/architect once? In case they are not available: the heating engineer. Such a decision should definitely not be implemented in practice based on gut feeling or half-knowledge from Google. You can possibly counteract hot feet by lowering the flow temperature. But if the performance calculation is fundamentally already underestimated, I wouldn't want to be in the responsible person's shoes. Some trades are simply not meant for laymen!
-----------------
Regards, KlaRa