Air-to-water heat pump 
ROTEX HPSU monobloc compact

Flexible application and easy installation

With the ROTEX HPSU monobloc compact, the essential hydraulic components are integrated into the outdoor unit. The compact unit is also supplied with a fully sealed unvented cooling circuit, so that the heating pipes run directly from the heat pump into the building. Because connections are only necessary on the water side, installation of the heat pump is exceptionally straightforward and rapid. Only the thermal store and the spare immersion heater (if applicable) need to be integrated into the building.

System advantages

Space-saving installation

The HPSU monobloc compact heat pump can be placed unobtrusively outside the building.

Simple and cost-effective installation

The hydraulic components of the heat pump are combined in the compact outdoor unit.

For the health of your family

Water heating with hygienic freshwater technology in combination with the ROTEX thermal store.



Future-proof and flexible

Direct combination with a solar system is possible and can be added anytime.

Product description

Heat pump in space-saving monoblock design

The ROTEX HPSU monobloc compact air-to-water heat pump for outdoor installation combines all components in a single compact unit. This unobtrusive appliance can be sited outside the building. When combined with a hygienic ROTEX thermal store, it ensures optimum heating and hot water convenience. The HPSU monobloc compact integrates the internal unit of the heat pump into the solar stratification store – in the smallest of spaces. The entire heating centre only takes up 0.36 m2 (HPSU monobloc compact 300) or 0.62 m2 (HPSU monobloc compact 500). This allows you greater flexibility in your choice of installation location and guarantees quick and easy installation.

The HPSU monobloc can not only provide heating but can optional also cool if required in rooms with underfloor heating or a fan convector. Your feel-good climate in every season.

The HPSU monobloc is available in five versions (5, 7, 11, 14 and 16 kW) and offers flow temperatures up to +55 °C. The heat pump is one of the most efficient and most compact systems of its kind on the market. 


The perfect choice for heating, cooling and domestic hot water 

The amount of heating energy required by modern buildings is decreasing, and the required flow temperatures are lower, too. This is where the low temperature ROTEX HPSU monobloc compact heat pump comes into its own, be it in conjunction with low temperature radiators or an underfloor heating system. The advantage of underfloor heating is that, due to the extremely large heating surface, it can make do with a low surface temperature. Plus, it can even cool the rooms during summer. With a total of five power ratings (5, 7, 11, 14 and 16 kW) and flow temperatures of up to 55 ° C, the HPSU monobloc compact is a flexible solution for new buildings and refurbished renovation projects.

Structure and funktion

Economical and quiet thanks to output modulating operation

The heat demand of a building varies very widely depending on weather conditions and utilisation patterns. The ROTEX HPSU monobloc compact heat pump employs inverter technology, which operates the compressor variably. In other words, the output of the heat pump is continuously adjusted to meet the demand.

Optimum water hygiene – maximum convenience

The water is heated in combination with a hygienic ROTEX thermal store. Thus, you get maximum comfort for heating and hot water. The ROTEX thermal store is a combination of domestic hot water tank and instantaneous water heater. The heat is not stored in the domestic hot water itself, but in the clearly separated tank water. In combination with the hygienic thermal store, the integration of solar systems for heating support and domestic water heating is also possible. Optimum tank stratification ensures that the provision of hot water is always guaranteed.

Innovative heat storage concept - Hygienic, flexible and future-oriented

All ROTEX products with the ECH2O label are characterized by a unique heat storage principle. Particularly space-saving, with the highest warm water comfort and open for additional heat sources. The innovative heat storage concept is applied to the HPSU monobloc compact.

Smart Grid Ready

The “Smart Grid Ready” label for all ROTEX HPSU monobloc compact heat pumps certifies their suitability for “power bias operation”.



The hybrid control RoCon

Apart from heat pump control functions, the hybrid control unit also takes on complete management of the thermal store – the heart of the hybrid heating system. This comprehensive hybrid management ensures the highest levels of system efficiency and optimum convenience for central heating, domestic hot water and cooling. Straightforward and consistent handling for the ROTEX HPSU compact with intuitive menu navigation and control via smartphone with the ROTEX app.

Energy efficiency class

Energy efficiency label for heating systems - safe in the knowledge it‘s ROTEX

All ROTEX products are tested and meet the criteria of the Ecodesign Directive. For both individual products and packaged solutions, energy labels are a reliable indicator of the precise efficiency class. Perfectly matched in terms of their individual components, our complete systems provide both maximum convenience and the highest safety standards. 

The combination with a thermal solar system is the most effective way to improve the efficiency class of the entire system.


Effizienzklasse zur HPSU monobloc compact

Information about the energy efficiency labels

Follow Us