How to tell if underfloor heating is running - ERR still without thermostat cover

If they are at zero, they haven’t measured anything either.
And please write warm water for the heat quantity meter of the warm water, otherwise it’s confusing.

How far you can lower the flow temperature primarily depends on the design of the underfloor heating. Other factors include the overflow valve and a possibly installed buffer in the heating circuit.
With what flow temperature and spread was the underfloor heating planned (and installed) with NAT?

Why can’t you as a user change the heating curve (and thus flow temperature and return temperature)? Does a technician have to come every time? I would question that again...

The move to the neighboring forum was definitely a good one... You probably get to the goal faster than with your heating engineer and the Elco technicians, and with a better result.

The step into the neighboring forum was definitely good... You probably get to the goal faster there than with your heating engineer and with the Elco technicians, moreover with a better result.