Vaillant ecoTEC exclusive condensing gas boiler with modern technology

2025-04-16T12:25:25+02:00

Vendor: Vaillant
Type: Gas condensing boiler
Price: 4971.00 - 5853.50 (5 variants)

Vaillant coTEC exclusive VC/VCW 1-7 condensing gas boiler

A strong argument: Vaillant condensing gas boiler Green iQ

The ecoTEC exclusive meets the highest requirements for sustainable technologies and intelligent networking – and has been awarded the [award name missing]. Vaillant Green iQ Label excellent.

The gas condensing boiler is produced in a resource-saving manner and consists of approximately 85% high-quality recyclable materials.

GEG-compliant: H2 Ready and Bio-natural gas

With the ecoTEC exclusive, we are already taking a big step towards the future:

The device is already suitable for operation with up to 20% hydrogen* and up to 100% biogas. No manual adjustments are required. Furthermore, it H2 Ready in accordance with the GEG, because the ecoTEC exclusive VC can be converted to run on 100% hydrogen* using a conversion kit.

This will be available from 2026. You can find more information about hydrogen here. here.

The self-adapting combustion system IoniDetect also offers many advantages:

It continuously monitors combustion quality via the ionization current and optimizes it in case of deviations.

It recognizes all types of natural gas and compensates for fluctuations in gas quality.

Optimal combustion guaranteed

Our ecoTEC exclusive is ideally suited for combination with heat pumps to create sustainable hybrid systems.

By utilizing ambient heat, a significant proportion of the required energy is generated sustainably.

Includes internet module for app control

The internet module sensoNET The ecoTEC exclusive can be ordered free of charge using the voucher on the front of the device. (In conjunction with the appropriate controller.) sensoDIRECT or sensoCOMFORT It enables your customers to conveniently control the system via an app – and allows you to manage your systems remotely, saving you time. myVAILLANT Pro.

So obtain and install Your customers the internet module:

1. Order via the QR code on the front of the device

2. Easy connection under the ecoTEC exclusive via plug-and-play

3. myVAILLANT App Download and get started

Fast hydraulic balancing via app

With the integrated, communication-enabled, high-efficiency pump, you can perform hydraulic balancing significantly faster and more accurately. The app “Grundfos GO BalanceThe app guides you step-by-step through the entire process and automatically calculates the recommended flow rate for each radiator. After the hydraulic balancing, you receive PDF documentation in the app. You can provide this to your customers as proof of professional implementation – particularly helpful for grant applications.

Perfect hot water preparation in the smallest space with the Vaillant condensing gas boiler VC/VCW 1-7

As a combination unit with integrated hot water preparation (VCW), the ecoTEC exclusive, with its further developed heat exchanger concept, achieves an 8% higher efficiency than comparable standard units. It requires only 0.32 m² of wall space.The secondary heat exchanger, with its 35 plates, ensures a particularly high level of hot water comfort.

Important technical information for Vaillant VC/VCW 1-7 condensing gas boiler

Modulation: 1:10

Power ratings VC: 15, 20, 25, 30 kW

Power output VCW: 25 kW (even 36 kW in hot water mode)

Technical data: Vaillant condensing gas boiler VC/VCW 1-7

ecoTEC exclusive | VC 15 CS/1-7 | VC 20 CS/1-7 | VC 25 CS/1-7 | VC 30 CS/1-7 | VCW 25/36 CF /1-7
Energy efficiency class | | | | |
Heating (A+++ - D) | A | A | A | A | A
Hot water (A+ - F) | - | - | - | - | A
Technical data | | | | |
Heating output at 50/30 °C natural gas E, natural gas LL (Min - Max) | 2.8 - 16.4 kW | 2.8 - 21.6 kW | 2.8 - 27.0 kW | 3.8 - 32.5 kW | 3.4 - 27.1 kW
Heating output at 50/30 °C liquid gas | 5.4 - 16.4 kW | 5.4 - 21.0 kW | 5.4 - 26.4 kW | 8.4 - 32.5 kW | -
(Min - Max) | | | | |
Heating output at 80/60 °C natural gas E, natural gas LL (Min - Max) | 2.5 - 14.8 kW | 2.5 - 19.7 kW | 2.5 - 24.7 kW | 3.5 - 30.0 kW | 3.0 - 25.0 kW
Heating output at 80/60 °C liquid gas | 4.8 - 14.8 kW | 4.8 - 19.7 kW | 4.8 - 24.7 kW | 7.8 - 30.0 kW | -
(Min - Max) | | | | |
Heating output during hot water operation | 20 kW | 24 kW | 27.5 kW | 34.8 kW | 36.4 kW
Natural gas E, Natural gas LL, Liquefied petroleum gas (Max) | | | | |
Continuous hot water supply | - | - | - | - | 17.6 l/min
Efficiency at 30% according to EN 15502 Natural gas E, Natural gas LL, Liquefied petroleum gas | 109% | 110% | 109% | 110% | 110%
Heat load for natural gas E, natural gas LL (Min - Max) | 2.7 - 15.3 kW | 2.7 - 20.4 kW | 2.7 - 25.5 kW | 3.7 - 30.6 kW | 3.2 - 25.5 kW
Seasonal space heating efficiency ηs | 93% | 94% | 94% | 94% | 94%
Addition of hydrogen | 20% | 20% | 20% | 20% | -
Biogas | up to 100% | up to 100% | up to 100% | up to 100% | up to 100%
ElectricPower consumption at 30% | 28 W | 47 W | 54 W | 58 W | 49 W
Electrical power consumption (max) | 81 W | 59 W | 91 W | 80 W | 61 W
Electrical power consumption in standby mode | 2 W | 2 W | 2 W | 2 W | 2 W
Included components in electrical power | pump | pump | pump | pump | pump
Contents on the heating side | 2.1 l | 2.1 l | 2.1 l | 2.6 l | 2.6 l
Maximum operating pressure on the heating side | 3 bar | 3 bar | 3 bar | 3 bar | 3 bar
Heating temperature, flow temperature (max) | 85 °C | 85 °C | 85 °C | 85 °C | 85 °C
Connection value for natural gas E | 2.2 m³/h | 2.6 m³/h | 3.0 m³/h | 3.8 m³/h | 3.6 m³/h
Connection value for natural gas LL | 2.5 m³/h | 3.0 m³/h | 3.5 m³/h | 4.4 m³/h | 4.2 m³/h
Connection value for liquefied petroleum gas | 0.8 kg/h | 1.0 kg/h | 1.1 kg/h | 1.3 kg/h | -
Condensation quantity at 50/30 °C | 1.53 l/h | 2.04 l/h | 2.55 l/h | 3.06 l/h | 2.55 l/h
Pump flow rate at ΔT 20K (residual delivery head) | 645 (200) l/h (mbar) | 860 (200) l/h (mbar) | 1.075 (200) l/h (mbar) | 1,290 (200) l/h (mbar) | 1.0.75 (250) l/h (mbar)
Expansion vessel contents | 10 l | 10 l | 10 l | 10 l | 10 l
Tension | 230 V/50 Hz | 230 V/50 Hz | 230 V/50 Hz | 230 V/50 Hz | 230 V/50 Hz
Product dimensions (height/width/depth) | 720/440/348 mm | 720/440/348 mm | 720/440/348 mm | 720/440/348 mm | 720/440/382 mm
Product weight | 34 kg | 34 kg | 34 kg | 39 kg | 43 kg
Heating connection (flow and return) | G 3/4 | G 3/4 | G 3/4 | G 3/4 | G 3/4
Cold water connection, hot water connection | G 1/2 | G 1/2 | G 1/2 | G 1/2 | G 3/4
Gas connection | 20 mm | 20 mm | 20 mm | 20 mm | 20 mm
Air connection, exhaust gas | 60/100 mm | 60/100 mm | 60/100 mm | 80/125 mm | 80/125 mm
CE | 0063CU3910 | 0063CU3910 | 0063CU3910 | 0063CU3910 | 0063CU3910
category | II2N3P | II2N3P | II2N3P | II2N3P | I2N