ENERGY CUBES
Transforming energy for modern living, from new projects to renovations.
What is an Energy Cube?
The energy cube is a future-proof and technically advanced solution for extracting heat and cold from ambient air. It operates as an air-brine heat exchanger (air absorber) in combination with a brine-water heat pump.
Its key feature is the downdraft effect, which creates a continuous airflow because the brine inside is approximately 10 °C cooler than the surrounding air. This allows the system to operate silently and without a fan.
The energy cube is maintenance-free and requires no earthworks, drilling,
or collectors. This enables flexible installation in gardens, on rooftops, or in densely populated areas. It provides year-round energy for heating and cooling (both passive and active) and can even be used for the thermal regeneration of ground probe systems. It is available in a modular design with 15 performance classes (ranging from approximately 4 to 76 kW).
What distinguishes the energy cube from other energy sources?
Silent operation
Unlike conventional source solutions that extract energy from the air, the energy cube does not produce any noise emissions
Low maintenance effort.
Thanks to the double Tichelmann system used, we can dispense with mechanical components. This significantly reduces maintenance and service requirements
Plug & Play
With a single connection for supply and return flow, the energy cube can be linked to the energy system within just a few minutes
Air as an energy source
In heating mode, the energy cube draws its energy from the outside air. In cooling mode, it releases the excess energy back into the outside air
FAQs
What is an energy cube and why is the energy cube silent?
The energy cube is a technically advanced solution for extracting heat and cold from ambient air—completely without a fan. Inside each energy cube are 32 layers of registers arranged according to the Tichelmann principle. These ensure uniform flow and optimal utilization of every single pipe. The brine in these registers is always about 15 °C cooler than the surrounding outside air to absorb ambient energy.
This temperature difference is sufficient to create a physical effect: warm air cools down and flows downward—without a fan, without noise. For this reason, the energy cube emits no sound.
Does the energy cube achieve the specified performance results?
Yes, through long-term testing, both at our test station and in completed projects, we have proven that the energy cube achieves the specified performance values.
Is there a risk that the energy cube could freeze and therefore stop delivering performance? Would you like me to keep translating more questions like this?
At the lower end of the critical temperature range (+5 to -5 degrees outside air temperature), a thin layer of ice forms. This does not compromise system efficiency, as the thermal conductivity of ice is higher than that of the materials used
Why is a brine/water heat pump used when the energy comes from the air?
Air/water heat pumps are indeed cheaper to purchase, but they operate significantly less efficiently (COP or seasonal performance factor) compared to brine/water heat pumps—especially at low outdoor temperatures. This leads to higher electricity costs in the long run. In addition, air/water heat pumps generate considerable noise emissions due to their fans, which becomes a major issue particularly in densely populated areas.
How and where can the energy cube be installed at my location?
In principle, the energy cube can be installed anywhere with access to outside air. Depending on local conditions, the installation site may be on the roof, in a courtyard, on a parking area, etc. The associated heat pump is either installed inside the building or mounted as a module on the energy cube and connected to the heating system.
For installation, we rely on established installation companies from the respective region.
In what sizes is the energy cube available?
The energy cube is available in 15 different sizes.
We distinguish between two heights: H1 (136 cm) and H2 (236 cm). For the depth of the energy cube, we differentiate between 139 cm and 239 cm. These options are each available in lengths of 575 cm, 475 cm, and 375 cm.