How do heat pumps heat an ancient castle?

Over a decade ago, 18 probes, each 200 meters deep, were installed on the castle grounds to harness geothermal energy for heating using heat pumps. This initiative became possible due to the absence of groundwater on the island. The design team at Ottitsch GmbH & Co. KG utilized component activation such as a wet air system on the ground floor and a dry air system on the upper floor, along with a complete air conditioning system, to ensure efficient heat distribution.

Robert Ottitsch, the managing director of Ottitsch GmbH & Co. KG, underscores the project's success, noting that the seasonal operation of heating and cooling systems significantly enhanced efficiency. This approach not only minimized the ecological footprint but also allowed for a more compact probe field than initially anticipated, demonstrating the team's ingenuity in overcoming spatial constraints.

Despite the castle's sprawling dimensions, the heating system relies solely on two brine-water heat pumps with a capacity of 102 kW each. These pumps serve as the linchpin of the heating infrastructure, efficiently regulating indoor temperatures across an area exceeding 1000 square meters. Beyond providing year-round comfort, these pumps have emerged as a cost-effective solution, substantially reducing heating expenses for the castle.

The results of this project demonstrate that an ecological and economical heating system can be successfully implemented even in the most challenging environments. The annual CO2 emissions savings at Herrnchiemsee Castle amount to 58,300 kg, which is an impressive testament to the success and efficiency of this initiative!

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