The ground water offers constant temperatures throughout the entire year of about 10°C and is thus very well suitable as a heat source.

The heat source system consists of an drawing well, a feed pump, a water pump and a non-return well. The underwater pump located in the drawing well transports the ground water to the heat pump.

In the heat pump, cost-free renewable sun energy is being obtained from the ground water via a heat exchanger and given off to the heating or domestic water by a heat pump process.

The cooled water will then be led back to the ground water via the non-return well. A prerequisite for an optimal function of a ground water pump is a sufficient water quantity with constant temperatures and equivalent quality of the ground water.



• low space requirement, thus suitable for new buildings and renovations
• constant heat source throughout the entire year, even in case of very low outside temperatures
• perennial use for heating and warm water preparation
• passive and active cooling of buildings via ground water possible



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