Underfloor heating, which control or regulation

Hello, I have a question regarding the regulation/control of the underfloor heating. So far, I have received very different statements. What experiences have been made? Who is satisfied how? Which professional can give us a tip for decision-making?

- Bimetal, relatively inaccurate, durable
- Electronic, accurate, relays sometimes just survive the warranty

Alternatives?

What would be the smartest?

Thank you Hilaria

Hello,

.... I have a question regarding the regulation / control of the underfloor heating. So far, I have received very different statements.

One should first deal with the terms "control" and "regulation" content-wise.
An underfloor heating system is sensibly regulated via the central regulation of the heat generator. (Heating curve => base point, slope).

This naturally requires an exact dimensioning/calculation of the heating surfaces according to the respective room heating loads.
The ERR prescribed by the Energy Saving Ordinance then ensures that unnecessary energy consumption (overheating) is avoided due to external heat influence.

best regards

Thank you for the answer. But that was not what I meant. I am looking for the right room temperature control. - mechanical - electronic I believe it is partly a matter of taste, but still the question is, what are the experiences, both positive and negative. The rest has been calculated by my independent architect with a freelance planner and certified energy consultant.

...I am looking for the right room temperature control.

Apparently the answer was not understood? It seems the architect and energy consultant are not very competent! ;)

best regards

I have very much understood that you consider the use of an ERR pointless; opinions differ and people argue about that.

I have very well understood that you consider the use of an ERR pointless, opinions differ and are debated on this.

We really do not understand each other, or rather, we are speaking different languages. ;) I do consider the ERR very much necessary, important, and even indispensable! Furthermore, the installer might have problems with his specialist contractor declaration if he waives it, provided he is even aware of that! The decisive factor is the hysteresis, which can certainly be achieved better and more safely with electronic components. Common and quite reasonable is 1 K. Have a look at the Energy Saving Ordinance/KfW verification to see what has been agreed there. Less than 1 K hardly makes sense, as the system can start to oscillate here (cycling). There are two operating states: On, Off.! So actually no control (PI or PID), but a position or control!

Best regards