Come utilizzo questo tipo di riscaldamento? Era impostato su 1/4 in tutto l’appartamento (3 posti) e dopo tutta la notte i pavimenti sono freddi

My guess would be it’s basically just degrees. With the upper middle being 20°C, so you’re set on like 15 or 10?

15 might be more likely, with 10 being the lowest before it’s on “anti freeze”.

It’s a temperature controller and you set about 10 degree. Room temperature is about 22 degree in the living room for example. The floor will heat until the room is at 22 degree and then will stop. I recommend to set 18 degree for sleeping area because otherwise it’s too hot.