The Vaillant New ecoTEC Plus 840 40kW Gas Combi Boiler is a high-output Vaillant ecoTEC Plus combi boiler designed for domestic heating and hot water applications. With a powerful 40kW heat output, natural gas operation and smart-home compatibility, it combines precise heating control with intelligent technology for efficient everyday performance.
The ecoTEC Plus 840 features an intuitive semi-touch interface, intelligent gas combustion monitoring technology, myVAILLANT app compatibility and LINBUS technology. It is also hydrogen prepared for up to 20% hydrogen mix, helping provide a modern heating solution with advanced control and monitoring capabilities.
40kW Heat Output
Vaillant ecoTEC Plus
Natural Gas
20% Hydrogen Prepared
5-Year Warranty
Applications & suitability
Domestic heating
Designed for domestic boiler applications with a powerful 40kW heat output.
Combi boiler installation
A combination boiler configuration providing heating and hot water from one boiler.
Smart heating control
Smart-home compatibility and myVAILLANT app compatibility support remote boiler control.
Hydrogen-prepared heating
Prepared to work safely and efficiently with up to a 20% hydrogen mix.
Key specifications
| Product Name |
Vaillant New ecoTEC Plus 840 40kW Gas Combi Boiler |
| Manufacturer Stock Code |
0010036018 |
| EAN Code |
4024074906767 |
| Brand |
Vaillant |
| Boiler Model |
ecoTEC Plus |
| Category |
Combi |
| Sub-Category |
Domestic Boiler |
| Output |
40kW |
| Fuel Type |
Natural Gas |
| Warranty |
5 Years |
| Ready for 20% Hydrogen |
Yes |
| Includes Magnetic Filter |
No |
| Application |
Domestic |
Installation & compatibility
The Vaillant ecoTEC Plus 840 is a natural gas combi boiler with a 40kW output and is intended for domestic boiler applications. The supplied product information confirms smart-home and app compatibility, as well as LINBUS technology and hydrogen preparation for up to a 20% hydrogen mix. Detailed installation dimensions, flue specifications and specific control-system requirements have not been provided in the supplied product information and should be confirmed before installation.
Smart heating & performance technology
40kW heat output
The ecoTEC Plus 840 provides a powerful 40kW heat output for domestic heating applications.
Intelligent combustion monitoring
Innovative gas combustion monitoring technology is designed to support enhanced efficiency during operation.
myVAILLANT app compatibility
The myVAILLANT app allows remote control and access to heating-system and energy-consumption information through compatible Apple and Android devices.
LINBUS technology
LINBUS technology enables more intelligent and accurate readings of flow rates and pressure differential via the internal pump.
Additional features
Semi-touch interface
An intuitive semi-touch interface provides straightforward boiler interaction.
Quick hot water delivery
The supplied product information states that hot water can be delivered in approximately 5 seconds.
Easy installation & maintenance
The product information highlights easy installation and maintenance.
Hydrogen prepared
The Vaillant ecoTEC Plus 840 is hydrogen prepared and is stated to be suitable for safe and efficient operation with up to a 20% hydrogen mix. This provides a future-focused feature for modern natural gas heating systems.
Ideal for
Domestic heatingSuitable for domestic boiler applications.
40kW heating requirementDesigned around a 40kW heat output.
Smart-home compatible systemsSupports smart-home and myVAILLANT app compatibility.
Hydrogen-prepared installationsPrepared for up to a 20% hydrogen mix as stated by the supplied product information.
Frequently asked questions
What is the Vaillant New ecoTEC Plus 840 40kW combi boiler?
The Vaillant New ecoTEC Plus 840 is a 40kW natural gas combi boiler from Vaillant's ecoTEC Plus range, designed for domestic heating applications. It features smart-home compatibility, an intuitive semi-touch interface, myVAILLANT app compatibility and LINBUS technology.
What output does the Vaillant ecoTEC Plus 840 have?
The Vaillant ecoTEC Plus 840 has a 40kW heat output.
Is the Vaillant ecoTEC Plus 840 a combi boiler?
Yes. The product is listed as a Combi boiler and uses natural gas as its fuel type.
Is the Vaillant ecoTEC Plus 840 hydrogen ready?
Yes. The supplied specification states that the boiler is ready for a 20% hydrogen mix. The product information also describes the ecoTEC Plus as hydrogen prepared for operation with up to 20% hydrogen mix.
Does the Vaillant ecoTEC Plus 840 support app control?
Yes. The supplied product information states that the boiler is compatible with the myVAILLANT app, which works with Apple and Android devices and provides remote control and heating-system information.
What is LINBUS technology on the Vaillant ecoTEC Plus 840?
LINBUS technology enables more intelligent and accurate readings of flow rates and pressure differential via the boiler's internal pump, according to the supplied product information.
What is included with the Vaillant ecoTEC Plus 840?
The supplied information lists one included item: Vaillant ecoTEC Plus 840 40kW Combi Boiler – 0010036018. A magnetic filter is not included according to the product specification.
What warranty does the Vaillant ecoTEC Plus 840 have?
The supplied specification lists a 5-year warranty for the Vaillant ecoTEC Plus 840.
The Vaillant New ecoTEC Plus 840 40kW Gas Combi Boiler combines a 40kW output with smart-home compatibility, app-based control, intelligent combustion monitoring, LINBUS technology and hydrogen preparation. With a 5-year warranty and natural gas operation, it is designed for modern domestic heating applications requiring a high-output Vaillant combi boiler.
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