ecoTEC exclusive with Green iQ

Our most intelligent, forward-thinking boiler technology

The pinnacle of the Vaillant boiler range, ecoTEC exclusive is the ultimate in energy efficiency, low consumption and running costs – which is why it carries our unique Green iQ mark.

  • Outstanding quality eco-friendly boiler range from the UK’s premier heating technology experts
  • Optimising control and efficiency with climate-friendly heat production, ecoTEC exclusive uses our latest technology with 85% of the parts being recyclable at the end of its life.
  • Works with vSMART™  control meaning you can control the ecoTEC exclusive from your smart phone or tablet.

Available in

  • Combii
  • Systemi

Optimum boiler performance, control and efficiency

  • Staggering modulation of 1:10, which gives the boiler a high level of efficiency with lower fuel bills. The boiler can adapt itself to give only the exact heating output you require ultimately lowering fuel; bills. Much like pressing the gas pedal of your car to adjust power and speed
  • Fully compatible with Vaillant’s vSMART™ heating control for optimum boiler performance and smartphone app control
  • Hand assembled in Derbyshire by one operative from start to finish, in our award winning manufacturing plant. 
  • ecoTEC exclusive is 85% recyclable at the end of its life
Reduced emissions and costs

The ultimate in energy efficiency

Hot water to your taps

Without the need for a storage tank or cylinder.

Works with vSmart

Our heating control app.

Save money

Reduced energy consumption

ecoTEC exclusive with Green iQ

Specification & Downloads

Key Specs

43
Output kW
17.8
Flow Rate l/min
A
ErP Heating Heating Efficiency
A
ErP Hot Water Heating Efficiency

Dimensions

Width 720mm
Height 440mm
Depth 474mm

Brochures & Manuals

Key Specs

35
Output kW
14.5
Flow Rate l/min
A
ErP Heating Heating Efficiency
A
ErP Hot Water Heating Efficiency

Dimensions

Width 440mm
Height 720mm
Depth 406mm

Brochures & Manuals

Key Specs

27
Output kW
A
ErP Heating Heating Efficiency

Dimensions

Width 440mm
Height 720mm
Depth 338mm

Brochures & Manuals

ecoTEC exclusive with Green iQ

Combi Boilers

ecoTEC exclusive Green iQ 843

Brochures & Manuals

Key Specs

43
Output kW
17.8
Flow Rate l/min
A
ErP Heating Heating Efficiency
A
ErP Hot Water Heating Efficiency

Dimensions

Width 720mm
Height 440mm
Depth 474mm
ecoTEC exclusive Green iQ 835

Brochures & Manuals

Key Specs

35
Output kW
14.5
Flow Rate l/min
A
ErP Heating Heating Efficiency
A
ErP Hot Water Heating Efficiency

Dimensions

Width 440mm
Height 720mm
Depth 406mm
ecoTEC exclusive Green iQ 835

System Boilers

ecoTEC exclusive Green iQ 627

Brochures & Manuals

Key Specs

27
Output kW
A
ErP Heating Heating Efficiency

Dimensions

Width 440mm
Height 720mm
Depth 338mm

Heating Controls

Future ready with vSMART

The Vaillant vSMART lets you control your heating and hot water anytime, anywhere from a single, easy to use app. Compatible with the entire range of Vaillant ecoTEC boilers.

View vSMART
Technology

It's whats inside that counts

See for yourself why Vaillant boilers are highly rated by installers for ease of service.

Vaillant Technology

Guaranteed warmth

By choosing a Vaillant Advance Partner, you’re choosing our network of fully trained, independent installers who can offer you exclusive extended guarantees, as well as a free no obligation quote to ensure your Vaillant boiler is the perfect fit for you and your home.

Find an Installer

Service Plans

Maintaining your boiler is essential to stay safe and save you money in the long-run.  Find out more about Vaillant servicing plans from as little as £79

Call us now on 0330 100 3143

Buy service plan here
Install, Service or Repair

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Existing Customers

Visit Service for Help

User guides, FAQs, support