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Table 4 Heating power of the heat pump, kW, with hot water delivered at 40 °C

From: Planned energy-efficient retrofitting of a residential building in Italy

  Frequency [Hz]
T e [°C] 110 90 70 50 30
−7 7.63 6.01 4.53 3.15 1.89
2 9.99 7.91 6.01 4.19 2.51
7 11.70 9.14 6.95 4.90 2.93
12 13.50 10.60 8.09 5.66 3.41