Not only does it ensure economical heating operation, but it also guarantees that the room is warmed up on time when you come home from work. The Boost function opens the valve for 5 minutes when activated, providing an immediate feeling of warmth in the room. It features improved and particularly quiet compact gearing. The Boost function heats the room quickly, making it generally more cost-effective than slow heating over a longer period. Additionally, the electronic thermostat helps reduce heating costs: up to 7 heating/temperature reduction times can be programmed per day – it only heats when you really need the warmth! Easy installation without interfering with the heating system, compatible with almost all valves (thread connection M30 x 1.5 mm). Intuitive operation with a large display. New, particularly quiet compact gearing – about 30% quieter than the previous model K. Automatic temperature reduction during ventilation. Holiday and party function: maintain a set temperature for a specific period, overriding the programmed switching cycles; after the time expires, the programmed switching cycles automatically resume. Child safety lock. Frost protection/anti-limescale function. Ready to operate immediately due to standard presetting. Battery life: approximately 3 years.