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Vaillant eloBLOCK VE 21 21 kW
400 H

Photos - Boiler Vaillant eloBLOCK VE 21 21 kW 400 H
Outdated Product
$772.89 up to $879.20
Powerful, extremely compact and lightweight heating boiler, which is mounted on the wall. The recommended heating area is up to 158 m². At the same time, the thermal power of the model is in the range of 7-21 kW. This is a fully electric model with which you can get heat without smoke and condensate. Equipped with a 2-circuit heat exchanger. If you buy an indirect heating tank, you can use the boiler to provide hot water. The Vaillant eloBLOCK VE 21 heating boiler can operate both from a 230 V household electrical network and a three-phase 400 V one. But only when connected to a 230 V network, only 7 kW of heating can be used. If you need a higher thermal power (14 or 21 kW), you will have to connect to a 400 V network. The control panel is equipped with a backlit LED display, the operatin...g parameters are set using a push-button block. The boiler is capable of heating the coolant in the range of 25-85 °C. Working pressure is 3 bar. The device can be mounted without taking into account the chimney and ventilation, which makes it absolutely safe to use it on any object, whether it is a private house or apartment, administrative, commercial or industrial establishment. The boiler has a built-in 3-speed circulation pump. There is also an expansion tank with a volume of 8 liters.
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Vaillant eloBLOCK VE 21 21 kW
400 H
Energy source:electricity
Mount:wall, single-circuit
Boiler power:21 kW, area ~ 158 m²
The model from 2019 has a new look, the name remains old, please specify this point when buying.

Powerful, extremely compact and lightweight heating boiler, which is mounted on the wall. The recommended heating area is up to 158 m². At the same time, the thermal power of the model is in the range of 7-21 kW. This is a fully electric model with which you can get heat without smoke and condensate. Equipped with a 2-circuit heat exchanger. If you buy an indirect heating tank, you can use the boiler to provide hot water.

The Vaillant eloBLOCK VE 21 heating boiler can operate both from a 230 V household electrical network and a three-phase 400 V one. But only when connected to a 230 V network, only 7 kW of heating can be used. If you need a higher thermal power (14 or 21 kW), you will have to connect to a 400 V network. The control panel is equipped with a backlit LED display, the operating parameters are set using a push-button block.

The boiler is capable of heating the coolant in the range of 25-85 °C. Working pressure is 3 bar. The device can be mounted without taking into account the chimney and ventilation, which makes it absolutely safe to use it on any object, whether it is a private house or apartment, administrative, commercial or industrial establishment. The boiler has a built-in 3-speed circulation pump. There is also an expansion tank with a volume of 8 liters.

All specifications
Specifications eloBLOCK VE 21
Main
Energy sourceelectricity
Installationwall
Typesingle-circuit (heating only)
Heating area158 m²
Technical specs
Heat output21 kW / 7+7+7 kW /
Min. heat output7 kW
Power supply400 V
Coolant min. T25 °С
Coolant max. T85 °С
Heating circuit max. pressure3 bar
Consumer specs
"Summer" mode
Heated floor mode
Circulation pump
Control buseBus
Boiler specs
Efficiency99 %
Combustion chamberno chamber
Expansion vessel capacity8 L
Connections
Central heating flow3/4"
Central heating return3/4"
Safety
Safety systemswater overheating
water circulation failure
frost protection
More specs
Dimensions (HxWxD)740x410x315 mm
Weight24 kg
Added to E-Catalogjune 2012
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
Catalog Vaillant 2024 - new products, best sales and most actual models Vaillant.
FAQ: 10 frequently asked questions about heating boilersAnswers to common questions in the section "heating boilers"
Additional features boiler Vaillant eloBLOCK VE 21:
  • Indication of settings via LED display
  • Possibility to connect an indirect heating boiler
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(energy source) 
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eloBLOCK VE 21