The aroTHERM Split air-to-water heat pump

Technology that runs, heat that lasts: Cost-effective, space-saving installation with a heat pump that is set up with an outdoor and an indoor unit. The heating output of 10 and 12 kw is ideal for newly built one family and multi-family houses or energy modernisation projects. Its quiet operation makes it suitable for use in terraced homes.

For newly built larger one-family houses, multi-family houses or energy modernisation projects: With our aroTHERM Split air-to-water heat pump, you save up to 75% of energy consumption and up to 30% of emissions. The heat pump system performs a highly efficient transformation of the sun's energy stored in the air into a comfortable environment: heat in the winter, cooling in the summer and hot water all year long.

Split technology: Something good made even better

Developed in Germany, manufactured in Europe: just like our aroTHERM, which has proven its worth thousands of times, the aroTHERM Split with refrigerant split technology offers great efficiency with an output of 10 and 12 kW. High quality production ensures that you will enjoy durable heating and cooling functionality. The modern design plus extensive, optimised details pay off for you at a factor of three.

Installation: More flexible than ever

Thanks to new technology, the outdoor and indoor units can be located up to 25 metres away from each other. This way, you will certainly be able to find the perfect place for your heat pump.

Operation: Quieter than ever

As one of the quietest air-to-water heat pumps on the market, the aroTHERM Split is perfect for use in densely packed terraced housing communities. Even at a distance of just a few metres, noise emissions are reduced to the level of a PC. And it's quiet inside as well. Most often, the indoor unit is located in the cellar and is only about as loud as a modern refrigerator.

Price-to-performance ratio: Better than ever

With the aroTHERM Split, you get state-of-the-art technology at an affordable price. It starts with the installation, which takes place in short time with hardly any effort. In the future, you can save the money you spend now on emissions testing or chimney cleaning. And the ongoing operational costs are pleasantly low.

Heating, hot water and cooling comfort all in a small space

An aroTHERM Split solution consists of two units. The heat pump for outdoor installation is installed on a house wall or in the garden. With the indoor unit, the uniTOWER, which is only as large as a refrigerator, you save valuable living space, especially in new buildings. Its integrated storage cylinder covers the normal requirements of a four-person family. If demand for hot water is greater or if a solar thermal system will be integrated, select a wall-hung hydraulic station in combination with a storage cylinder such as the uniSTOR. Within new construction, you can use the aroTHERM as the only heat generator. If you are renovating, you can also integrate it into your existing gas heating system. Intelligent control with hybrid management then ensures optimum use ofenvironmental heat.

Less CO2: Required and subsidised

The aroTHERM Split is supported with attractive subsidies, for example from (NSC specific) the KfW bank, the Federal Office of Economics and Export Control (BAFA) or the market incentive programme (MAP). For more detailed information regarding subsidies, see (NSC specific): LINK/ (as Short-URL)

Even more efficient in a system

The aroTHERM Split is a real team player and works perfectly together with other Vaillant components. From photovoltaic systems and controlled living space ventilation to solar water heating: discover our system solutions from a single source for even more efficient heating - including convenient heating system control via an app.