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Witten by Bernard Morgan (Engineer) & Adam Apperley (Marketing). Published: April 19, 2021. Updated: November 21, 2023

Vaillant ecoTEC Pro Combi Boiler Review

The Vaillant ecoTEC Pro Combi Boiler is a top-of-the-range model in the Vaillant eco collection with four power outputs available. Our team have thoroughly reviewed this model and this review covers everything you need to know before deciding whether it is right for you and your family.

Technical Specification:

Manufacturer Vaillant
Model EcoTEC Pro Combi
Condensing Yes
Efficiency Rating 94%
Energy Efficiency Class A Rated
LPG Compatible Yes
Warranty 5-year standard warranty
Central Heating Max. Output 25 – 38 kW
Mounting Wall Mounted
Weight 38 kg
Dimensions 720mm (Height) x 440 (Width) x 338mm (Depth)

Key Features:

  • This is a relatively compact boiler and has a lightweight design with removable side panels, making it easy to install, monitor and maintain
  • Simple to use manual control panel with an illuminated LED display
  • Holds an ‘A’ energy efficiency rating, with above 90% efficiency, even higher when combined with smart technology controls
  • Compatible with Vaillant’s vSMART™ app control for remote heating management
  • Provides a heating output of up to 38 kW and hot water delivery of up to 15.9 litres per minute
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The Vaillant ecoTEC Pro Combi Boiler is a quiet and relatively compact heating and water system, which does not require a cylinder or water tank. This makes it ideal for those with limited space, but who are looking to install an effective boiler that can heat a home and deliver hassle-free and affordable installation.

  • Can be installed in a standard cupboard in a kitchen, bathroom or airing cupboard, doesn’t require a tank or water cylinder
  • Functions include running operation on as little as 16% of maximum power and frost damage protection
  • Can integrate with smart thermostats, including Vaillant’s vSMART™ app
  • Compatible with LPG
  • Comes with a standard 5-year warranty for peace of mind
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Our thoughts:

The Vaillant ecoTEC Pro Combi Boiler is smart-compatible and uses the latest technology to deliver quality heating and hot water. Features include compatibility with Vaillant’s vSMART™ smart technology app and LPG conversion options.

Although not as compact as other models on the market, it could still be installed to fit inside an airing cupboard or larger kitchen or bathroom space.

A trusted brand

Vaillant is an international company based in Germany and they have become synonymous with high quality and reliable boilers which are built to last.

However, Vaillant has made significant efforts to invest in the UK market and the eco range is manufactured at their plant in Derbyshire.

Energy-efficient and will reduce your bills

The Vaillant ecoTEC Pro Combi Boiler has an ErP ‘A’ rating and an energy efficiency running performance of 94%. For optimum energy efficiency, there is a range of wired and wireless controls, including the capability to connect with a smart energy management system such as the vSMART™ smart technology app or the Vaillant VRC 700 heating control.

By controlling the boiler from your smartphone, computer or tablet or from one of the VRC 700 control panels, you can ensure your heating is managed sensibly and take advantage of additional features such as troubleshooting support if your boiler is malfunctioning.

Innovative technology

As well as considering maximum energy efficiency, this boiler has other technological innovations as standard. The Vaillant ecoTEC Pro Combi Boiler is the flagship boiler in the eco range. Importantly, it features a steel heat exchanger which provides excellent reliability compared to similar boilers from competitors that utilise aluminium heat exchangers. The innovative technology utilised within the Vaillant ecoTEC Pro Combi Boiler also ensures high central heating and water flow rates, without the need for a water tank or cylinder.

The boiler is built to deliver low sound generation whilst running, and Vaillant has won awards for low decibel generation in this range.

Easy Installation

As a wall-mounted and relatively compact and lightweight model, this is an easy to install boiler. The panels open at the side, meaning repair work can be conducted without causing disturbance. It can also be converted to LPG.

Wide availability of parts 

Manufactured in the UK, the Vaillant eco range parts are widely available. Because this boiler is widely sold, if you need a replacement item you can find spare parts at Screwfix, Plumbase and other plumbing merchants both in-store and online.

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