Air-to-water heat pump system aroTHERM plus

Environmentally friendly and future-proof

  • Future-proof thanks to the most cutting-edge heat pump technology with natural refrigerant, reducing your carbon footprint
  • Natural refrigerant for the respect of the environment
  • Hot water up to 70 ° C
  • Operation down to -25 ° C
  • Flow temperature up to 75 ° C in thermodynamic alone



Great performance for you and for our climate

People who want to heat in an environmentally friendly way can now do so with the aroTHERM plus. The new air-to–water heat pump combines great performance, energy efficiency and sustainability.

Efficiency that you can feel

In combination with the uniTOWER plus, the aroTHERM plus offers the best convenience for hot water – for long showers and rain shower heads.

A performance (COP at A7/W35) of up to 5.4 and an energy efficiency class of A+++ reduces the outdoor unit’s energy consumption by more than ten per cent*.

Already securely prepared for tomorrow

The aroTHERM plus combines cooling, heating and hot water in a single solution. It is also equipped with the latest heat pump technology. The natural refrigerant used enables above-average performance; at the same time it has a particularly low global warming potential, which makes aroTHERM plus extremely climate-friendly. The system can be connected to photovoltaic or solar heating systems, among others, and thus helps you to keep your carbon footprint small.

Compact and super quiet

Great performance does not require a lot of space. The uniTOWER plus indoor unit is only about the size of a freezer and fits into a utility room. The outdoor aroTHERM plus unit also has impressively compact dimensions.

Its operating noise level is also particularly inconspicuous. At only 28 dB(A) at a distance of 3 m in silent mode, the aroTHERM plus is as quiet as a wristwatch ticking. The system can thus be flexibly positioned, even in densely populated terraced housing estates – without any negative effects for you or your neighbours.

Ideal for new buildings and modernisation projects

The aroTHERM plus is not just the perfect solution for new buildings, because it provides an outstanding hot water supply. It can also be used in existing buildings as an alternative to fossil fuel energy sources, as it can also be combined with radiators due to its high flow temperatures of up to 75 °C.

Adjusts itself entirely to your needs

Whether your requirements or the temperatures outside change, with the sensoCOMFORT system controller, you always have your heating system under control in the truest sense of the word. Thanks to the optional sensoAPP, the system can also be controlled while you’re on the go. For example, you can lower the temperature while at work or preheat the house on the last day of your holiday.

*The achieved or achievable energy savings depend on various factors (e.g. local electricity prices, previous model, heating setting, use, location, outdoor temperature) and may thus vary.



Energy efficiency per power category central heating function ErP efficiency rating for central heating (A+++ to D)
flow temperature 35°
ErP efficiency rating for central heating (A+++ to D)
flow temperature 55°
3kW A+++A++
5kW A+++A++
6kW A+++A++
7kW A+++A++