With the innovative ice storage, there is a possibility to use the heat of the air, the soil and the solar radiation.
The ice storage is a cistern with two built-in heat exchangers. This cistern is buried in the garden, 90% filled with drinking water and the heat pump serves as energy storage at outside temperatures below 0 ° C. 2 Nutrient hybrid modules on the roof collect the heat from the ambient air, use the solar radiation and carry it to the heat pump as needed the ice storage. In addition, the hybrid modules produce electricity, which is used for self-consumption. The surplus is imported into the public grid. Further heat is obtained directly from the earth via the outer wall of the cistern.
The new heating concept was built at the end of 2012 in a Schwörer house. We have recorded our consumption figures since the move.