household contains 8 people, hot water consumption is 60 l/day/person Cold water temperature is 10 °C Hot water delivered is 58 °C Heat loss for cylinder is 2.8 kwh/day Circulation loss is 9% Specific yield is 568/ m²/year Collector area is 2.4 m2 The area of solar installation is: O 15.3 m2 10.3 m2 O 17.3 m? O 12.3 m?
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