Underfloor heating with prefabricated screed panels

Hello,

we want to build a prefabricated single-family house and have a question about the floor structure with underfloor heating.
One supplier uses prefabricated concrete screed elements, in which the heating pipes are already integrated.
It is not entirely clear to us how the individual elements are connected. Unfortunately, the sales consultant could not provide any details on this.

Is the water circuit then basically segmented at points that are inaccessible?
How reliable is it for the future? We don’t want a leak problem to occur there in 10 years.

Does anyone perhaps use a similar system and can report on it?

I think these are rather panels that have cutouts for the pipes of the underfloor heating. After laying the panels, the pipe is continuously inserted into the cutouts.

The big disadvantage I always see with such systems is that you are committed to a fixed laying grid. Normally, a room-specific heating load calculation is done and, for example, it often turns out in the bathroom that the pipe spacing must be very close and sometimes even a wall heating is additionally necessary in order to achieve a low supply temperature for the heat pump.

I suspect, as "hanse987" already noted, that you misheard.
There has never been a "segmented system of heating elements" and for safety reasons, there certainly will not be one in the future.
Probably a kind of KNAUFF system is meant, where (as "hanse987" noted) the recesses, into which the continuous pipe (heating element) is clicked and then refinished with an epoxy resin-reinforced filler, are meant.
Such a heating system has been on the market for years and has proven itself.
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Greetings to the "community of questioners": KlaRa

Thank you very much for your answers.