Groundwater
Where groundwater is available at an acceptable depth and in sufficient amounts, it offers the best possible seasonal performance factors. A constant temperature of 8 to 12 °C guarantees an optimum heating operation. This requires two wells to be constructed – one delivery and one return well. The return well should be at least 15 metres away from the delivery well in the flow direction of the groundwater. 1 kW heating output requires approximately 250 litres per hour groundwater. The capacity must be verified by a continuous pump test. The amount of suspended matter in the water must not exceed or undershoot certain thresholds, so a water analysis must be carried out. A permit from the local water board is required.
Passive Cooling: In passive cooling mode, a heat exchanger is used to extract heat from indoor spaces. Additionally, the naturally cool temperature of groundwater is utilized to support the cooling effect. During this process, the heat pump itself is not active—only the control unit and circulation pump are running. As a result, the cooling effect is lower than with active cooling using a heat pump. We’ll be happy to advise you on the cooling performance of our heat pumps and help you determine the most suitable solution for your specific needs. Don’t hesitate to get in touch with us.