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4 – Drinking water

4.2 – Temperature limit

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Hot water temperatures between 50 °C and 60 °C are entirely sufficient for domestic use. Higher temperatures would disproportionately increase wasted energy. Here is an extract from the German Heating System Regulation (German abbreviation: HeizAnlV): “Automatic or other mechanisms shall limit the hot water temperature in the pipe network to a maximum of 60 °C…

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