Vaillant boilers

Vaillant have a reputation for producing boilers that combine outstanding performance and reliability.

Engineered in Germany and manufactured in the UK, their range of highly efficient ecoTEC combi boilers have won numerous awards.

Our Heating Advisers can help you choose the right boiler for you.

Or, take a look at the other boilers in our range.

Vaillant Combi boilers

Model

Dimensions

Maximum  Flow Rate

Output

Efficiency Rating

Vaillant ecoTEC Pro 24

H - 720mm

W - 440mm

D - 335mm

9.4 ltrs per min 23.4kW A-rated - 91%
Vaillant ecoTEC Pro 28

H - 720mm

W - 440mm

D - 335mm

11.5 ltrs per min
28kW A-rated - 91%
Vaillant ecoTEC Plus 831

H - 720mm

W - 440mm

D - 338mm

12.4 ltrs per min
31kW A-rated - 91%

Vaillant System boilers

Model Dimension Output Efficiency rating
Vaillant ecoTEC Plus 615 System

H - 720mm

W - 440mm

D - 338mm

15kW A-rated - 91%
Vaillant ecoTEC Plus 630 System

H - 720mm

W - 440mm

D - 372mm

30kW A-rated - 91%

More useful information

We have offers and discounts available for a limited time only.

Get an estimated cost for installing a new boiler.

A guide to getting a new boiler with British Gas.

Reasons to choose British Gas

We guarantee a fixed price

When our Heating Advisors quotes a price, we guarantee it won’t increase even if there’s unexpected work to do.

Boiler cost calculator

Pay monthly with no upfront deposit

We could help you spread the cost over 3-10 years[3] or you could choose to pay in full if you’d prefer.

Payment options

Your home is clean and safe

Our Engineers leave your home neat and tidy and will arrange the safe disposal of all waste.

Step by step guide

Free aftercare included

This includes service and repairs for your boiler, controls and central heating system for one year.

Latest offers

British Gas New Heating Limited is authorised and regulated by the Financial Conduct Authority for its consumer credit activities.

* Based on 546 customer responses collected between 09/12/14 & 12/12/14.

We value the honest feedback of our customers, so we've partnered with Reevoo - an independent reviews service. Reevoo collects ratings and reviews from people who shop with us. Using a third party ensures there is no bias, editing or fake reviews.

British Gas Boiler Installation Service reviews verified by Reevoo

Quality of the installation
9.1
Quality of advice provided by the Heating Adviser (person who gave you your quote)
8.6
Overall rating
8.8
Scores 8.8 out of 10 based on 983 reviews