When I installed the Stiebel Eltron water heater, I had questions about the optimal temperature and operating modes. The standard instructions were too brief, so I found a more detailed manual on the
https://manuals.online/stiebel-eltron. It describes in detail all the operating modes, energy saving and safety tips. Following these instructions, I set up the water heater perfectly, now hot water is always available, and energy consumption is minimal. It is very useful to have such a resource with complete and understandable information at hand.