According to our principle, the heat in your apartment should be 20-21 degrees Celsius daytime. There is some degree about the recommendations of the Public Health Authority.
Avoid having windows and balcony doors open. This will cool down the apartment.
Measure the temperature 1-1.5 meters above the floor and at least one meter from windows and doors. Also make sure it is on an inner wall.
IMPORTANT! The thermostat on the element should never be blocked by furniture, thick curtains or the like, if it does then it will not feel the heat in the room and turns off.