Heating
The apartment is heated by a floor heating system. To adjust the temperature, you need to use the thermostat. The thermostat has a touch screen, and it's possible to increase or decrease the temperature.
Boiler
If the temperature doesn't increase and the water in the kitchen/bathroom is cold, it may be necessary to adjust the boiler located in the kitchen. The boiler pressure should be equal to or higher than 1 bar. If it isn’t, look for the black knob at the bottom of the boiler and turn it until the pressure rises to 1 bar.