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Scientists in Spain have developed a new heat pump that can produce 6.49 kWh of heat for each kilowatt-hour of power it consumes. The device could generate hot water at a temperature of up to 75 C.Researchers

Kostenloser wertpapierhandelSaunier duvalPolytechnic university of valenciaVaillant groupPolytechnic universityGermany based vaillant group