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aroTHERM Split plus: The A+++ model among heat pumps.

Low running costs, A+++ ErP rating* and quiet operation: Discover our all-new split heat pump that ensures maximum efficiency and comfort.

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Compact in design, great in action.

Are you looking for a heating system to increase energy efficiency for heating, cooling and hot water preparation? Our new aroTHERM Split plus convinces with an increased energy efficiency value ETAs of 203% thus achieving A+++* ErP label for all models. The COP value of >3.6 for domestic hot water preparation is the best in its class and ensures low operating costs.

With an output range of 3 to 7 kW and lowest operation noise of 30 dB(A) in 3m distance this heat pump is the ideal allrounder: suiting new builds just as well as sufficiently insulated existing buildings – especially in areas with dense development.

When it comes to choosing the installation location, it also impresses with its high level of flexibility: the indoor and outdoor units can be installed up to 40 metres away from each other.

Why the aroTHERM Split plus stands out.

High efficiency

The aroTHERM Split plus has an energy efficiency value increased by up to 203% in heating and an A+++ ErP rating* which keeps your operating costs low.

Improved comfort

Enjoy instant hot water comfort with the 35% faster heat-up time of the hydraulic tower cylinder. By reversing its process, the aroTHERM Split plus can cool, too.

Connectivity onboard

With the plug and play connectivity module you manage the aroTHERM Split plus easily by using the myVAILLANT app.

Quiet operation

Not louder than a modern refrigerator: the super silent night mode reduces the noise level to 30 dB(A) at a distance of 3 metres. This makes the heat pump one of the quietest in its class.

R32: The up-to-date refrigerant.

The effectiveness of a heat pump is significantly influenced by its refrigerant. It is the transport medium for the heat and is therefore particularly important. The refrigerant R410A is the standard in many heat pumps. From January 2025, however, new regulations will make it illegal to use in heat pumps with a refrigerant content of less than 3kg.

The ideal solution: R32 is a modern refrigerant for small and medium-sized split heat pumps such as the aroTHERM Split plus. It is characterised by a significantly lower global warming potential (GWP) and higher efficiency.

uniTOWER Split plus: Space-saving power.

The aroTHERM Split plus heat pump consists of an outdoor and an indoor unit. By reducing the heating time by up to 35% you enjoy faster hot water comfort.

The uniTOWER Split plus is no bigger than a fridge, but covers the needs of a four-person family due to the integrated storage tank. If you need more hot water or want to integrate a solar thermal system, you have several options: Choose a wall-mounted hydraulic station in combination with a cylinder such as the uniSTOR.

Frequently asked questions

Still have questions? We have the answers.

*Energy efficiency class for room heating at 35°C

**Efficiency increase of 3/5/7 kW models for DHW and room heating at 35°