Depending on showering habits, instantaneous water heaters in the bathroom can become electricity guzzlers. But modern electronic devices are at least more economical than some older models. And if you have little space in your home or no hot water tank, you have to use an instantaneous water heater anyway. But which one is best?
Vaillant VED E 21/8 E 10023747 electric instantaneous water heater
Product details
Electronic VED E 21/8 E exclusive electric instantaneous water heater.
Product advantages: The first hot water device with energy monitor and integrated consumption data display. Trend indicator considering technical measurement tolerances. Maximum user comfort through a uniform clear-text operating menu and graphic display (device and wireless remote control). Wireless remote control for precise temperature setting and consumption data display at any tap point. Highest hot water comfort with precise outlet temperature ranging from 20 °C to 55 °C. Suitable for reheating drinking water from solar storage up to 60 °C. Energy and water savings of up to 30% compared to hydraulic instantaneous water heaters. Safety features (burn protection, child safety lock) and languages adjustable via clear-text operating menu. Quality seal for comfort & quality for user-friendly device technology. Up to 4 waterproof, bidirectional remote controls can be used.
Features: Large graphic display with clear text, illuminated and 4-button operating menu. Comes standard with one wireless remote control with clear-text display. Fully electronic power and water quantity regulation Temptronic. Installation system PRO I, folding frame, and rotatable hood. Suitable for plastic pipes according to DIN 1988 and DIN 16892/16893. Future-proof PE-BUS interface (e.g., for solar systems).
Rated power: 21 kW. Mains voltage: 3/PE 400 V/50 Hz. Max. flow rate: 12 l/min. Temperature selection range: 20-60 °C. Cold/hot water connection: R 1/2. Protection class: IP 25. Height/Width/Depth: 481/240/99 mm. Weight: 4.4 kg. Hot water preparation energy efficiency class A (spectrum A+ to F).
To operate this instantaneous water heater, a three-phase alternating current connection is required. The installation of such a high-power instantaneous water heater requires the approval of the network operator and may only be carried out by the network operator or an installation company registered in the network operator's installer directory.
Boiler type | Instantaneous water heater |
Volume | 1 l |
Item number | 22442787 |
Manufacturer | Vaillant |
Category | Boilers |
Manufacturer no. | 0010023747 |
Release date | 16.9.2022 |
Material group | Plastic |
Material | Plastic |
Boiler type | Instantaneous water heater |
Version | Under-sink appliance |
mounting style | Table |
threaded connector | 1/2“ |
heating system | Bare wire |
Temperature range | 20° - 60° C |
Temperature display | Digital |
Max. pressure | 10 bar |
Energy efficiency class | A |
Model name | VED E 21 |
Power supply | Electrical connection |
Nominal power | 21 kW |
Nominal voltage | 400 V |
Protection type (IP code) | IP25 |
Country of origin | Germany |
CO₂-Emission | |
Climate contribution |
Scope of delivery | 1 |
Length | 9.90 cm |
Width | 24 cm |
Height | 48.10 cm |
Weight | 4.40 kg |
Volume | 1 l |
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Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Boilers» category have a defect within the first 24 months?
Source: Galaxus- VaillantNot enough data
- 1.Stiebel Eltron0,9 %
- 2.Ariston1,5 %
- 3.AEG Haustechnik4 %
- Bosch Home ComfortNot enough data
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- VaillantNot enough data
- 1.Ariston6 days
- AEG HaustechnikNot enough data
- Bosch Home ComfortNot enough data
- Stiebel EltronNot enough data
Return rate
How often is a product of this brand in the «Boilers» category returned?
Source: Galaxus- VaillantNot enough data
- 1.Stiebel Eltron3 %
- 2.Ariston3,2 %
- 3.AEG Haustechnik3,5 %
- 4.Bosch Home Comfort12,8 %