ᐅ Underfloor heating: which control or regulation system to use?

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

What experiences have you had? How satisfied are you? Which professional can give us advice to help with the decision-making?

- Bimetal, relatively imprecise, durable
- Electronic, precise, relays sometimes barely last through the warranty

Any alternatives?

What would be the most sensible option?

Thank you
Hilaria

Hello,

Hilaria schrieb:
.... I have a question regarding the control/management of underfloor heating. So far, I have received very different answers.

It is important to first clarify the terms "control" and "management." Underfloor heating is most effectively managed through the central regulation of the heat generator (heating curve => base point, slope).

Of course, this requires precise sizing and calculation of the heating surfaces according to the specific heating loads of each room.
The Mandatory External Influence Control (ERR), as required by the energy saving regulations, then ensures that unnecessary energy consumption (overheating) caused by external heat sources is avoided.

Best regards.

Thank you for your response.
However, that was not what I was asking about.
I am looking for the right room temperature control method.

- mechanical
- electronic

I believe it is partly a matter of personal preference, but still, the question is: what are the experiences, both positive and negative?

The rest has been calculated by my independent architect together with an independent planner and a certified energy consultant.

Hilaria schrieb:
...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 helpful! 😉

Best regards

I fully understand that you consider the use of an ERR pointless; opinions on this differ widely.

Hilaria schrieb:
I clearly understood that you consider the use of an ERR pointless; opinions differ and people debate this.

We really do not understand each other or are simply speaking different languages. 😉 I consider the ERR to be necessary, important, and even indispensable! Moreover, the installer might face issues with their specialist contractor’s declaration if they forgo it, assuming they are even aware of this! The deciding factor is the hysteresis, which can certainly be managed better and more safely with electronic components. A usual and quite sensible value is 1 K. Take a look at the Energy Saving Ordinance/KfW certification to see what has been agreed upon there. Less than 1 K hardly makes sense, as the system may start to oscillate (short cycle). There are two operating states: open and closed. So basically, this is not really a regulation (PI or PID), but rather a position or control!

Best regards.