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Table 8 EER of heat pump with cold water delivered at 7 °C and heat supplied to DHW

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

  Frequency [Hz]
T hw [°C] 110 90 70 50 30
48 2.45 2.59 2.63 2.54 2.23
50 2.30 2.42 2.47 2.40 2.11