Serial number 8A00231016003173; Heats 100 liters of water from 8 to 75 degrees in 22 minutes; suitable for tap water; works down to -25 degrees Celsius without additional heating; can also cool; monoblock; energy label A+++; solar panels can be connected directly to the heat pump without an inverter; unused; Delivered new in box; There is still a subsidy scheme of 3525€ on this heat pump