
Best selling Boilers from Vaillant
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1. Vaillant instantaneous water heater
The Vaillant instantaneous water heater is a powerful hot water device that provides efficient and on-demand hot water supply. With a flow rate of 11 liters per minute, it is ideal for households that require a constant and reliable hot water supply. The water heater operates on liquid gas and utilizes natural draft to ensure optimal combustion. The electronic battery ignition allows for easy and safe operation. With a height of 580 millimeters and a width of 310 millimeters, the unit is designed for wall mounting, making it space-saving and suitable for various rooms. The energy efficiency class A highlights the eco-friendly features of the device, which not only ensures comfort but also promotes energy savings. The Vaillant instantaneous water heater is a reliable solution for anyone who values an efficient hot water supply.

2. Vaillant Electric instantaneous water heater
The Vaillant electric instantaneous water heater VED E 21/8 is a powerful device that provides efficient and reliable hot water supply. With a rated power of 21 kW and a maximum temperature of 55 degrees Celsius, this water heater ensures a constant outlet temperature, making it ideal for various applications. The unit is designed for installation above or below the sink and features a digital temperature display for easy operation. The electronic power control allows for precise adjustment of the heating output, resulting in significant energy and water savings of up to 30% compared to hydraulic instantaneous water heaters. The plastic pressure vessel and IP25 protection rating make the device robust and durable, while the automatic air detection simplifies maintenance. Weighing only 4.4 kg, the water heater is also easy to install and maintain.
- Energy and water savings of up to 30% compared to hydraulic instantaneous water heaters
- Easy maintenance with accessible, easily replaceable components
- Automatic air detection for improved functionality
- Digital temperature display for precise control
- Suitable for pre-heated water and plastic pipes.

3. Vaillant VED E 24/8
The Vaillant VED E 24/8 is a powerful electric instantaneous water heater designed for efficient and reliable hot water supply. With a rated power of 24 kW, this device offers a constant outlet temperature ranging from 30 to 55 degrees Celsius, making it ideal for households that require a continuous hot water supply. The water heater is suitable for both above-counter and under-counter installation and features a digital temperature display as well as electronic power regulation. Thanks to its compact design and lightweight of 4.4 kg, the device is easy to install and maintain. The VED E 24/8 is also energy-efficient, allowing for savings of up to 30% compared to hydraulic instantaneous water heaters, making it an environmentally friendly choice for modern households.
- Energy efficiency class A for reduced operating costs
- Digital temperature display for precise control
- Electronic power regulation for optimal hot water delivery
- Automatic air detection to enhance efficiency
- Easy maintenance with accessible, replaceable components.

4. Vaillant VED E 24/8 E
The Vaillant VED E 24/8 is a powerful instantaneous water heater designed for the efficient supply of hot water. With a rated power of 24 kilowatts, this device provides a reliable solution for daily hot water needs. The water heater is characterized by its compact design, allowing for easy installation, whether on a wall or on a table. Thanks to the digital temperature display, users can precisely set and monitor the water temperature, offering additional comfort and safety. The energy efficiency class A ensures that the Vaillant VED E 24/8 is not only powerful but also environmentally friendly, making it a sustainable choice for modern households. With a maximum pressure of 10 Bar and a temperature range of 20 to 60 °C, this device is versatile and meets the requirements of various applications.
- Energy efficiency class A for eco-friendly operation
- Digital temperature display for precise control
- Maximum pressure of 10 Bar for high reliability
- Versatile installation options: wall or table mounting
- Compact design for space-saving installation.

5. Vaillant VED E 21/8 P
The Vaillant VED E 21/8 P is a powerful electric instantaneous water heater designed for efficient and demand-oriented hot water preparation. With a rated power of 21 kilowatts, this device provides a reliable solution for supplying hot water in households or commercial applications. The instantaneous water heater is characterized by its compact design, which allows for easy installation, and is intended for mains operation. The digital temperature display ensures precise control of the water temperature, while the energy efficiency class A indicates low energy consumption. The temperature range of 20° to 60° C allows for flexible adjustment to individual needs. Made in Germany, the Vaillant VED E 21/8 P combines quality and modern technology in one device.
- Energy efficiency class A for low energy consumption
- Digital display for accurate temperature control
- Maximum pressure of 10 Bar for high stability
- Compact design for easy installation
- Heating system with bare wire for rapid heating.

6. Vaillant multifunction module 2/7 VR 40 - 0020017744
The multifunction module 2/7 VR 40 - 0020017744 is a versatile control element specifically designed for installation in various boiler models. It allows for the simultaneous execution of up to two out of seven possible additional functions, enhancing the flexibility and efficiency of the heating system. Supported boiler types include, among others, the VU/VUW atmoTEC, VU/VUW turboTEC, VC/VCW ecoTEC plus models, and many more. The module is made from high-quality plastic and provides a reliable solution for controlling circulation pumps, solenoid valves, and other heating functions. By integrating this module into the heating system, users can optimize operational processes and increase the efficiency of the heating systems.
- Allows simultaneous execution of 2 out of 7 additional functions
- Compatible with a wide range of boiler models
- Controls domestic hot water circulation pumps and external solenoid valves
- Provides fault message evaluation and combustion valve control
- Made from high-quality plastic in Germany.

7. Vaillant VED E 24/8 C
The Vaillant instantaneous water heater VED E 24/8 C is a powerful appliance designed for the efficient provision of hot water. With a rated output of 24 kW and a maximum temperature of 55 degrees Celsius, this instantaneous water heater offers a constant outlet temperature that meets the requirements of modern hot water convenience. The appliance is made of robust plastic and is suitable for both over-counter and under-counter installation. The electronic output control ensures precise adjustment of the heating output, resulting in significant energy and water savings of up to 30 % compared to hydraulic instantaneous water heaters. In addition, automatic air detection ensures reliable functionality. With a weight of 4.4 kg and compact dimensions, the instantaneous water heater is easy to install and maintain, making it a practical choice for various applications.

8. Vaillant Gas fitting, Vaillant no. 053471
The Vaillant gas valve is a precision-engineered component specifically designed for heating systems. It plays a crucial role in gas flow regulation and combustion control within boilers. Made from corrosion-resistant materials, it offers a durable solution for both residential and commercial heating environments. Its thoughtful design ensures high operational stability and heat resistance, making it ideal for continuous operation. Installation should be carried out by qualified technicians to ensure optimal performance and safety compliance. This gas valve contributes to the efficiency of the heating system by precisely regulating the fuel supply, thus supporting energy-efficient operation. It is an original replacement part that can be seamlessly integrated into compatible Vaillant boiler models.
- Precise gas flow regulation for optimal heating performance
- Durable construction from corrosion-resistant materials
- High heat resistance and mechanical durability
- Energy-efficient operation with proper maintenance.

9. Vaillant extension pipe DN80/125 1m 303203
Extension pipe DN80/125, 1 m, 303203. Pipe with seal for use with chimney systems for condensing boilers. Made of polypropylene, it is relatively resistant to higher temperatures. Due to the lower flue gas temperature, this accessory is only suitable for condensing boilers. Diameter: 80/125 mm. Length: 1 m.

10. Vaillant Connection set aroTHERM plus 2x 425mm stainless steel pipe with 5/4" mouth / 35mm smooth end, 2 x
The aroTHERM plus connection set from Vaillant is an essential solution for the installation of monoblock heat pumps. It includes two high-quality stainless steel pipes, each 425 mm long, specifically designed for connecting the heat pump unit to other system components. The use of corrosion-resistant materials ensures high durability and reliability for both indoor and outdoor installations. Each pipe is precisely manufactured to guarantee optimal performance and system stability. The set supports professional installation practices and ensures efficient heat transfer through properly sealed and insulated connections. The included mounting hardware provides secure attachment points that can withstand vibrations and thermal expansions. All components undergo strict quality controls to meet European heating system standards.
- High-quality stainless steel pipes for durability
- Corrosion-resistant for indoor and outdoor applications
- Precise manufacturing for optimal system stability
- Includes mounting hardware for secure attachment.

Vaillant Connection set aroTHERM plus 2x 425mm stainless steel pipe with 5/4" mouth / 35mm smooth end, 2 x