The heat and cool demand of this familiy house are 11 kW and 6 kW, so a Junkers heat pump was installed with 10,9+9 kW nominal performance.
This heat pump supplies the domestic hot water demand, too and it has a weather-dependent regulator.
There are 3 pieces BHEs with 80 m depth on the primary side of this system. The pipes are single BHE with 40 mm diameter and the primary side is filled with ethylene glycol and water. The grouting material is quartz-sand. This system utilized 8,3 kW geothermal heat.
The heat pump makes domestic hot water in a 165-liter combined tank.
According to the plan this heat pump system was installed by the HGD Ltd.