ᐅ Experiences with spacing of underfloor heating pipes?

Good morning,

There are many threads about pipe spacing for underfloor heating that I have already read through, but they only partly answered the following question: What experiences have homeowners who have already moved in had—in practice—specifically regarding the pipe spacing of underfloor heating? Would you use the same approach next time, or do it differently (e.g., closer pipe spacing; spiral layout or serpentine layout)?

Maybe there are experiences here that can help those who are still facing this task avoid mistakes ;-)

Best regards,
Jochen

Only your energy consultant can give you that answer!
As a general rule, you can say that the bathroom should be as compact as possible.
What surprised me is that you don’t really notice the underfloor heating when standing barefoot on the floor.

Yes, otherwise the house would become too hot... nowadays low-temperature heating systems and energy-efficient houses are usually built... moreover, heat loss through transmission is limited since outside temperatures rarely drop below minus double digits in most parts of the country... all of this means that underfloor heating can keep the house comfortably and economically warm while barely being noticeable to bare feet...

Somehow, consulting energy advisors feels almost like visiting doctors. You ask two and you get four different opinions.

Maybe a bit more specific: Is there anyone who, for example, installed a 10cm (5 inches) gap in the bathroom and would do it the same way again? Another question is whether anyone has used meander (serpentine) layout for the living areas and found it fully satisfactory in terms of heat distribution.

Perhaps it would be a good idea to consult the planner or architect? If neither is available, then the heating engineer should be contacted. A decision like this should never be implemented based on guesswork or partial information from internet searches.

Cold feet can sometimes be alleviated by lowering the flow temperature. However, if the heat output calculation is fundamentally undersized, I wouldn’t want to be in the responsible person’s position.

Some trades are simply not suited for DIY!
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Regards, KlaRa