In order to avoid input errors and unrealizable wishes, the heating is fixed to 40 k. The water is heated from 10 ° to 50 ° C. in two steps. Preheating by the high proportion of condensation heat Qc (30k) and reheating due to the low proportion of superheat heat Qu (10k).

Note the different machine run times as seen in the year and enter the average value.

If the hot water consumption of the user is lower than the maximum daily amount of hot water, please enter the real consumption.

5 working days per week = 250 working days per year
6 working days per week = 300 working days per year
7 working days per week = 350 working days per year

For the required water heating, this annual energy volume is necassary.