HOT WATER HEAT PUMP The perfect addition to an electric heating system.


The ETHERMA AQUA WHP hot water heat pump is used for the centralized hot water supply from several draw-off points in a house, regardless of the installed heating system. It uses the existing thermal energy in the room air to process the service and hot water in a cost-effective and energy-saving manner. However, since the room temperature is not high enough to heat the water sufficiently, the water temperature in the heat pump is also increased. This happens when the air heat is transferred to the coolant and compressed by means of a compressor. The temperature of the coolant rises, so that this heat is transferred to the water through a heat exchanger. Hot water comes out!

The hot water heat pump is ideal for single-family houses in new and existing buildings - also perfect in combination with a photovoltaic system, so that self-generated electricity is optimally used. Combination with a solar system is also possible. The heat pump is only used when the solar cells do not generate enough hot water.

The right place to set up

The higher the air temperature, the more effective the heat pump is. Because it gets around 75% of the energy it needs from the ambient air and only the rest from the power grid. Therefore, warm rooms such as laundry rooms with washing machines and dryers, which have relatively high temperatures even in winter, are particularly suitable as a location. The difference between the air temperature and the required water temperature thus determines the energy consumption. As a positive side effect, the heat pump also dehumidifies the cellar air and thus prevents the formation of mold.

Use circulating air or outside air

The ETHERMA AQUA WHP can be used with both circulating air and outside air. In the variant with circulating air, the room air is used to operate the heat pump. Part of the heat is extracted from the air that is drawn in and this is raised by the heat pump to a usable temperature level (up to 62 ° C in pure heat pump operation). Moisture is also withdrawn from the rooms. This protects the building fabric and increases the quality of living.

With the help of the outside air adapter (not included), the AQUA WHP can easily be switched to outside air mode. This prevents the building from cooling down, especially with well-insulated new buildings. Basically, the heat pump works efficiently up to an outside temperature of -5 ° C. The built-in electric heating element then switches on for assistance. This also happens when all the hot water has been used. This can result in additional costs.




Dehumidifies the cellar and prevents mold growth.



Fast installation thanks to the monoblock design and preset control. Only requires a water connection and a 230V connection.



Ideal in combination with PV systems, solar systems and eco tariffs.





Energy efficiency class A +. Consumption-dependent, automatic heating of the water.



Low investment and installation costs. No separate room necessary.



Quiet operation similar to a refrigerator. Intuitive, simple operation.


Hot water heat pump
Monobloc for easy installation
Optionally with circulating air or outside air
Compatible with PV & solar systems
Convenient operation through pre-assembled control unit
Energy efficiency class A +

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