The flush-mounted thermostat is designed to meet the requirements of various heating systems. Various functions enable optimal management of energy resources: The optimum start function saves heating energy, as the thermostat "learns" how much lead time is necessary to reach the desired temperature at the set time. This prevents unnecessary and costly preheating. If the residents are away for several days, the temperature can be lowered and then increased to a comfortable room climate right before their return using the vacation function. To do this, only the start and end dates of the vacation need to be entered. However, if one is only away for a few hours, the temperature can be adjusted to meet specific needs using the party short-term timer, without the need to alter the program. If the temperature is usually lowered during the day on weekdays, it can...