Vaillant aroTHERM plus VWL 125/8.1 400V, závesný modul + VWZ MEH 97/7, sensoCOMFORT 720, VR 940

Code: 8000055956
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15 700 € –20 %
1669713 1 vab d8000033712 13 arotherm plus vwl 105 125 8
15 700 € –20 % 12 500 € / pcs 10 162,60 € excl. VAT Measure price:
International delivery
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Detailed information

Product detailed description

Vaillant aroTHERM plus VWL 125/8.1 400V is an outdoor unit of a monoblock air-to-water heat pump, designed for efficient heating, hot water production and cooling. It is equipped with natural refrigerant R290, which is ecological and sustainable. This unit is part of the aroTHERM plus series, representing the most efficient air-to-water heat pumps from manufacturer Vaillant. The monoblock system aroTHERM plus is designed to minimize required installation distances, ensuring maximum flexibility in placement. The heat pump has a power of 12 kW and is ideal for single-family homes, including those with existing heating systems.

Thanks to its high efficiency and low noise level (27.5 dB(A)), it ensures lower operating costs and comfort for you and your neighbors. The delivery includes the outdoor unit, which is ready to be connected to indoor units and hydraulic systems. This unit is part of a system that uses R290 technology and is available in various power variants. An ideal choice for modernizing older systems or for new buildings, where economy and environmental responsibility are important.

Vaillant aroTHERM plus VWL 125/8.1 400V is designed to provide maximum efficiency even at low outdoor temperatures. The heat pump uses natural refrigerant technology, which reduces emissions and at the same time ensures high efficiency. This technology is currently one of the most ecological and economical on the market. The system is suitable for systems with a single heating circuit and is compatible with hydraulic module VWZ MEH 97/7 and controller sensoCOMFORT 720. This combination allows full automation and efficient control of the entire heating system.

Vaillant aroTHERM plus VWL 125/8.1 400V is ideal for households that desire ecological and economical heating. The heat pump is able to work efficiently even at low outdoor temperatures, ensuring comfort throughout the year. The system is easy to install and requires minimal installation distances, which reduces installation costs and increases flexibility in placement. The heat pump is also suitable for systems located in areas with high energy costs, where economy and energy savings are important.

Installation and compatibility

For installation, it is necessary to connect the outdoor unit to the indoor units and hydraulic systems. The heat pump is compatible with hydraulic module VWZ MEH 97/7 and controller sensoCOMFORT 720. It is suitable for single-family homes and systems with a single heating circuit. The hydraulic module, hot water tank and accessories for connection to gas boilers are not part of the delivery. For proper installation, it is necessary to ensure sufficient distances between the unit and surrounding objects, as well as to consider the availability of electrical connection and hydraulic systems. Installation should be carried out by a qualified technician who ensures correct setting and connection of all components. During installation, it is also important to consider the orientation of the unit in relation to wind and sun to maximize system efficiency. Therefore, it is advisable to choose a suitable location where the unit is protected from strong winds and at the same time has access to outdoor air.

Use and advantages

Operation and maintenance

Operation of the Vaillant aroTHERM plus VWL 125/8.1 400V heat pump is simple and does not require rules that would be too demanding. The system is equipped with an advanced controller sensoCOMFORT 720, which allows programming and control of the heating system according to individual needs. This controller ensures optimal temperature settings and efficient control of all system functions. Therefore, the system is suitable for households where comfort and efficiency are important.

Maintenance of the heat pump is minimal and includes regular inspections and cleaning of the unit. It is important to ensure that the unit is clean and free of dust, which ensures maximum efficiency and long system life. Regular technical inspections ensure that the system will function correctly and without faults. The heat pump is also equipped with advanced functions that allow monitoring of the system status and notify of any problems. These functions ensure that the system will operate without faults and guarantee maximum reliability.

Recommended accessories

Technical parameters

Name Value
Outdoor unit – heating power 12 kW
Refrigerant R290
Noise level 27.5 dB(A)
Power supply 400 V
Type of system monoblock air-to-water heat pump

Additional parameters

Category: aroTHERM plus Split (R410a)
Warranty: 2 years
Weight: 120 kg
Refrigerant: R290
Noise level: 27.5 dB(A)
Outdoor unit – heating output: 12 kW
System type: monoblock air-to-water heat pump
Power supply: 400 V

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List of discussions

Á Avatar of author 08/10/2026 18:11
A szobámban van egy régi fűtés, ez a 12 kW-os Vaillant be fogja tudni váltani? És mennyi zajt csinál, mert a szomszédok is ott laknak mellettem.
A Avatar of author 08/10/2026 18:11
Ez a modell kifejezetten családi házakhoz és meglévő rendszerek modernizálásához lett kialakítva, így az átalakítás nem lesz gond. A zajszintje mindössze 27,5 dB(A), ami nagyon csendes, tehát a szomszédokat sem fogja zavarni.

About the company

The Vaillant Group is synonymous with heating and hot water preparation, placing particular emphasis on quality, reliability and user comfort. Its heating technology products are present in more than 100 countries around the world. The group unites the brands Vaillant, Saunier Duval, AWB, Bulex, DemirDöküm, Glow worm, Hermann Saunier Duval and Protherm. Each of these brands has extensive experience in the production of heating equipment, as most of them have been active in this segment for more than 80 years. With its 140 years of market presence, the brand Vaillant is among the largest and most significant. It has long been a market leader and a pioneer in the development and innovation of heating technologies in Europe. The Vaillant Group has an extensive network of sales representatives and thousands of satisfied customers around the world.

The extensive portfolio of the Vaillant Group includes modern heating technologies that are energy-saving, efficient and contribute to environmental protection. Thanks to a wide range of products and models, every customer can find exactly what they need here. The range includes wall-hung and floor-standing boilers, hot water storage tanks or electrical appliances. In the market of wall-hung boilers, the company is even number one in Europe with a 26 percent market share. The Vaillant Group is not specialized only in the development and production of boilers; its product portfolio also includes technologies that use renewable energy sources, such as solar systems or the most modern heat pumps and air conditioners. It also offers recovery or cogeneration units or zeolite heat pumps to users.

Vaillant Group thinks ahead every day and offers individual solutions for every need and type of energy. Its success is also based on research and development, which always takes place in line with the wishes of customers. The company's research and development department is among the largest and above all the most creative departments in this segment. The team of developers is constantly working on new devices and technological systems that are increasingly easy to operate and already meet the demands of tomorrow. Whether it is about energy solutions of the future or about the best way to use fossil fuels, the company Vaillant Group tries to anticipate new trends and to be always one step ahead of others. Proof of this is the registration of up to 100 new patents every year. In the field of production, the company places the greatest emphasis on achieving the highest quality of boilers, which represents perfection in every detail.

The Vaillant Group has its presence in most countries of the world. Slovakia is no exception, where the company Vaillant Group Slovakia, s. r. o. is located, representing the brands Vaillant and Protherm. Heating equipment of the Vaillant Group is produced in seven production plants, two of which are located on our territory. These factories employ more than 1,300 people in total. The production plant Protherm Production with its headquarters in Skalice specializes in the production of electric and floor-standing boilers for all brands belonging to the Vaillant Group. It can also boast its own research and development center, which is among the most modern in Europe. The second production plant in Slovakia is Vaillant Industrial Slovakia in Trenčianske Stankovce, which produces modules for wall-hung boilers for the entire group.

History of the company Vaillant

The history of the company Vaillant goes back to the year 1874, when it was founded by Johann Vaillant in Remscheid, Germany. Since then, the company Vaillant has been a leader in the field of heating and ventilation technologies.

History of the company Vaillant 

1874 Plumber Johann Vaillant founded the company.

1894 Patented for the invention of a gas water heater with a "closed system" design.

1899 Registered company logo, the Easter Bunny.

1905 Development of a wall-mounted water heater, patented under the designation "Geyser".

1924 Development of a wall-mounted boiler for heating.

1955 Production of the millionth appliance after the end of the Second World War.

1960 Production of electrical appliances begins.

1967 Development of a combined wall-mounted boiler.

1974 11 million appliances sold since 1974.

1992 Establishment of subsidiary companies – in the Czechoslovak Republic, Hungary, Poland and Turkey.

1993 Separation of Czechoslovakia leads to the creation of a separate sales representation in Slovakia.

1999 Anniversary, 125th anniversary of the founding of the company, 40 million appliances sold in the entire history of the company.

2001 The Vaillant Group is formed, covering eight significant manufacturers of heating equipment in Europe, including the boiler manufacturer Protherm in Slovakia.

2003 The Vaillant Group production plant in Skalice specializes in the production of floor-standing boilers also for other brands belonging to the VG group.

2004 Vaillant Group opens a new production plant in Trenčín, Slovakia, for the production of hydraulic groups for wall-hung boilers.

2009 10,000,000 modules for heating equipment produced at the VG Trenčín plant.

Easter Bunny in the logo - intended for the success of the company

Pink dwarfs and cute animals stand around and admire the miracle of the egg. Johann Vaillant is fascinated by the scene and decides to buy both the picture and the copyright. For Vaillant, this means the establishment of its brand and an extremely successful story.

Very distinctive brand profile

Since 1899, the motif has adorned all products, catalogs and brochures. In a few short years, Vaillant built an excellent reputation that spread throughout Germany and even beyond its borders. Vaillant gave its logo clear lines and outlines. "The Bunny in the Egg" remains the central theme, but the word "Vaillant" is added.

Many Germans know that the Vaillant Bunny belongs to a company based in North Rhine-Westphalia. Moreover: more than 70% of all Germans have heard of the company Vaillant. In Austria and the Netherlands, the company achieves similar results for its image.

Sustainability 

As a forward-looking, family-owned company, we accept special responsibility for the environment, for our employees and for society. We are convinced that economic success, sustainable and profitable growth are inseparably linked to a commitment to social and ecological standards.

In order to fulfill this commitment, we are committed to carrying out our activities in a sustainable manner within the strategic S.E.E.D.S. Program (Sustainability in Environment, Employees, Development & Products and Society). The definition of these areas of interest is based on a comprehensive understanding of sustainability, in which we also take into account key issues of our core activities.

 

 

 

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