Vaillant

Founded in 1874, Vaillant has been producing quality, reliable and affordable heating solutions for over 140 years. One of the most popular boiler brands on the market, Vaillant’s boiler models regularly feature at the top of the ‘best buy’ lists.

As well as constantly refining and improving the energy efficiency of their boilers, Vaillant is also committed to green initiatives. Many of their models are compatible to use with solar panels and the ecoTEC exclusive Green iQ range of boilers are made with 85% recyclable materials.

All of the boilers that Vaillant design and manufacture are also Quiet Mark approved, which means you’ll hardly notice it - even when it is running at full capacity.

Vaillant combi boilers

There are 5 models in the Vaillant combi boiler range, all of which have an ErP efficiency rating of ‘A’. They are also available in different heating outputs, depending on the size of your home and your heating and hot water demands.

Combi boilers are incredibly popular for small to medium homes due to the space you save in not having to install a hot water cylinder and/or cold water storage tank (like you would for a regular or system boiler).

All of Vaillant’s combi boilers are compact and light, meaning they can be hidden out of the way and installed inside a kitchen cabinet or bedroom cupboard.

Boiler model kW Output Efficiency Warranty Price
Vaillant ecoTEC plus 825 Combi Gas Boiler 20.4kW 94% 10 years £1,152
Vaillant ecoTEC plus 832 Combi Gas Boiler 25.7kW 94% 10 years £1,248
Vaillant ecoTEC plus 835 Combi Gas Boiler 32.2kW 94% 10 years £1,431
Vaillant ecoTEC plus 838 Combi Gas Boiler 30.1kW 94% 10 years £1,408
Vaillant ecoTEC plus 938 Combi Gas Boiler 30.9kW 94% 10 years £1,703
Vaillant ecoTEC Pro 24kW Combi Gas boiler 24.8kW 94% 10 years £1,015
Vaillant ecoTEC Pro 28 kW Combi Gas Boiler 25.9kW 94% 10 years £1,119
Vaillant ecoTEC Pro 30 kW Combi Gas Boiler  25.7kW  94%  10 years  £1,211 
Vaillant ecoTEC Exclusive Green IQ 835 Combi Gas Boiler 26.4kW 94% 10 years £1,425
Vaillant ecoTEC Exclusive Green IQ 843 Combi Gas Boiler  36kW  94%  10 years  £1,673 
Vaillant ecoFIT pure 825 Combi Gas Boiler 19.1kW 94% 10 years £907
Vaillant ecoFIT pure 830 Combi Gas Boiler 26.5kW 94% 10 years £1,058
Vaillant ecoFIT pure 835 Combi Gas Boiler 26.7kW 94% 10 years £1,192

Vaillant regular boilers

Vaillant has two models in their regular boiler range: the ecoTEC plus and ecoFIT pure. Both are available in multiple outputs and are compact and light enough to be wall-mounted and installed inside a cabinet.

If you already have a regular boiler fitted in your home, then it’s an easy choice to replace it with a new regular boiler. This is because the existing pipework and cold water storage tank will already be installed.

Regular boilers are also ideal for homes that have more than one bathroom and a large demand for hot water from multiple outlets at the same time.

Boiler model kW Output Efficiency Warranty Price
Vaillant ecoTEC plus 412 Regular Gas Boiler 12.3kW 94% 5 years £805
Vaillant ecoTEC plus 415 Regular Gas Boiler 15.1kW 94% 5 years £911
Vaillant ecoTEC plus 418 Regular Gas Boiler 18.3kW 94% 5 years £959
Vaillant ecoTEC plus 424 Regular Gas Boiler 24.6kW 94% 5 years £1,007
Vaillant ecoTEC plus 430 Regular Gas Boiler 30.5kW 94% 5 years £1,167
Vaillant ecoTEC plus 435 Regular Gas Boiler 35.1kW 93% 5 years £1,453

Vaillant system boilers

Vaillant offers three boilers in their system boiler range: the ecoTEC plus, the ecoFIT pure and the ecoTEC exclusive, which is made of 85% recyclable materials.

System boilers are similar to regular boilers in that they both need a hot water cylinder to store the domestic hot water, however system boilers don’t require a cold water storage tank as they connect directly to the mains water supply.

If you have a requirement for a constant supply of hot water but don’t want to install a tank in your loft, then a system boiler is an ideal choice.

Boiler model kW Output Efficiency Warranty Price
Vaillant ecoFIT pure 612 system Gas boiler 12.3kW 94% 10 years £894
Vaillant ecoFIT pure 615 system Gas boiler  15.2kW  94%  10 years  £980 
Vaillant ecoFIT pure 618 System Gas boiler  18.3kW  94%  10 years  £1,058 
Vaillant ecoFIT pure 625 System Gas boiler  25.4kW  94%  10 years  £1,243 
Vaillant ecoFIT pure 630 System Gas boiler  30.5kW  94%  10 years  £1,227 
Vaillant ecoTEC plus 612 System Gas Boiler 12.2kW 92% 10 years £902
Vaillant ecoTEC plus 615 System Gas Boiler  15.4kW  93%  10 years  £971 
Vaillant ecoTEC plus 618 System Gas Boiler  18.5kW  94%  10 years  £1,098 
Vaillant ecoTEC plus 624 System Gas Boiler  24.4kW  94%  10 years  £1,227 
Vaillant ecoTEC plus 630 System Gas Boiler 30.4kW 94% 10 years £1,363
Vaillant ecoTEC plus 637 System Gas Boiler 37.6kW 94% 10 years £1,537
Vaillant ecoTEC exclusive Green iQ 627 System Gas Boiler 26.7kW  94% 10 years £1,390
Vaillant ecoTEC plus 48kW System Gas Boiler 48kW 94% 5 years £2,264
Vaillant ecoTEC plus 64kW System Gas Boiler 64kW 94% 5 years £2,700
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