The first fully automatic IoT replenishment system Heaty Complete PROfessional makes replenishment much easier and more convenient. The Heaty Complete PROfessional ensures constant pressure conditions and therefore ideal efficiency in the heating system. The leakage protection prevents uncontrolled water leaks and costly damage to the building. The user-friendly menu navigation minimises the potential for errors, while the integrated leakage protection warns of water damage. The documentation in the UWS Master Cloud protects against recourse claims by recording every work step and every refill. Proactive communication minimises unnecessary service calls through targeted journeys. The automatic connection to the cloud (eSIM) provides a comprehensive overview of all replenishments and customers. Status updates on cartridge changes, software updates and the device history can be called up at any time. Early fault detection and simple rectification are guaranteed. The 5-year Complete PROfessional Package rounds off this unique IoT replenishment system.