Electric Wall-Hung BoilereloBLOCK

Added safety for quick additional heat.

Versatile and reliable – not dependent on fossil fuels
Economical power consumption through optimal power adjustment
Rapid domestic hot water production with Vaillant indirect tanks
Compatibility with photovoltaic systems

Our eloBLOCK provides a flexible heating solution for holiday cabins, homes without access to gas, or as a reliable backup for a heat pump. Operating entirely on electricity, it supplies heat to radiators, underfloor systems, and hot water storage tanks. Its high-efficiency pump ensures rapid and even heat distribution while automatically compensating for minor temperature differences, keeping electricity consumption low. With its precise power modulation and fine output gradations, eloBLOCK operates economically and efficiently. When combined with Vaillant smart controls, you can conveniently manage your heating remotely via smartphone. Built from durable materials and operating without fossil fuels, eloBLOCK offers effortless maintenance and long-lasting comfort.

Ideal for:

Heating

Technical data table overline

Technical data table headline

eloBLOCK
VE 6 / 14 EU II	VE 9 / 14 EU II	VE 12 / 14 EU II	VE 14 / 14 EU II	VE 18 / 14 EU II	VE 21 / 14 EU II	VE 24 / 14 EU II	VE 28 / 14 EU II

ErP

ErP Seasonal Space Heating Efficiency Class	ErP Seasonal Space Heating Efficiency Class
ErP Seasonal Space Heating Energy Efficiency	ErP Seasonal Space Heating Energy Efficiency	36 %	36 %	36 %	37 %	37 %	37 %	37 %	37 %

eloBLOCK
VE 6 / 14 EU II	VE 9 / 14 EU II	VE 12 / 14 EU II	VE 14 / 14 EU II	VE 18 / 14 EU II	VE 21 / 14 EU II	VE 24 / 14 EU II	VE 28 / 14 EU II

Power Output and Efficiency

Nominal Heat Output	Nominal Heat Output	6 kW	9 kW	12 kW	14 kW	18 kW	21 kW	24 kW	28 kW
Output Modulation Type	Output Modulation Type	3 Level	3 Level	3 Level	3 Level	3 Level	3 Level	3 Level	3 Level

Electrical Connection

Electrical Connection Type	Electrical Connection Type	Cable Connection	Cable Connection	Cable Connection	Cable Connection	Cable Connection	Cable Connection	Cable Connection	Cable Connection
Electrical Power Consumption (3/N/PE, 400 V) (max)	Electrical Power Consumption (3/N/PE, 400 V) (max)	6 kW	9 kW	12 kW	14 kW	18 kW	21 kW	24 kW	28 kW
Electrical Voltage Supply	Electrical Voltage Supply	400 V (50 Hz)	400 V (50 Hz)	400 V (50 Hz)	400 V (50 Hz)	400 V (50 Hz)	400 V (50 Hz)	400 V (50 Hz)	400 V (50 Hz)
IP Rating¹	IP Rating¹	IP20	IP20	IP20	IP20	IP20	IP20	IP20	IP20

Hydraulics

Expansion Vessel Volume	Expansion Vessel Volume	8 l	8 l	8 l	8 l	8 l	8 l	8 l	8 l

Connections

Connection Dimension Heating (Flow, Return)	Connection Dimension Heating (Flow, Return)	G ¾″	G ¾″	G ¾″	G ¾″	G ¾″	G ¾″	G ¾″	G ¾″

Dimensions

Height / Width / Depth	Height / Width / Depth	740 mm / 410 mm / 315 mm	740 mm / 410 mm / 315 mm	740 mm / 410 mm / 315 mm	740 mm / 410 mm / 315 mm	740 mm / 410 mm / 315 mm	740 mm / 410 mm / 315 mm	740 mm / 410 mm / 315 mm	740 mm / 410 mm / 315 mm
Weight (Unpackaged, Net)	Weight (Unpackaged, Net)	24 kg	24 kg	24 kg	25 kg	25 kg	26 kg	27 kg	27 kg

Limitations

Operating Pressure Heating (max)	Operating Pressure Heating (max)	3 bar	3 bar	3 bar	3 bar	3 bar	3 bar	3 bar	3 bar
Temperature Heating (min - max)	Temperature Heating (min - max)	25 - 85 °C	25 - 85 °C	25 - 85 °C	25 - 85 °C	25 - 85 °C	25 - 85 °C	25 - 85 °C	25 - 85 °C
Temperature Domestic Hot Water (min - max)	Temperature Domestic Hot Water (min - max)	35 - 70 °C	35 - 70 °C	35 - 70 °C	35 - 70 °C	35,0 - 70,0 °C	35 - 70 °C	35 - 70 °C	35 - 70 °C
Connection Cable Cross-Section (min)	Connection Cable Cross-Section (min)	1,5 mm²	1,5 mm²	2,5 mm²	4 mm²	4 mm²	6 mm²	6 mm²	10 mm²
Current Consumption (max)	Current Consumption (max)	3 x 9,5 A	3 x 14 A	3 x 18,5 A	3 x 23 A	3 x 27,5 A	3 x 32 A	3 x 36,5 A	3 x 43 A