Compare Vaillant Boiler Prices

Vaillant are a manufacturer of boilers with over 140 years of experience in the industry and are well known for being pioneers of the combi boiler. Vaillant UK are part of the larger Vaillant Group who supply boilers to over 20 countries worldwide and own the well-known boiler subsidiary brand Glow-worm.

Vaillant produce a choice of types of boilers like the combi, system & regular (also known as conventional or heat-only) which come in a variety of series models including the popular ecoTEC Plus, ecoTEC Pro, and ecoFIT.

New Vaillant boiler price range (£749.07-£1,916.94*)

Vaillant offer a wide range of boilers for domestic properties. The boilers in the Vaillant range are suitable for a variety of different homes as they vary in kW output from 12kW to 43kW. Vaillant boilers come with up to 5-years manufacturer-backed warranty.

The entry level Vaillant heat-only gas boiler is the the ecoTEC Plus 412 which has an output to heat of 12kW, comes with up to 5-years manufacturer-backed warranty and is priced at £749.07. The top of the range Vaillant system boiler is the ecoFIT 843 with 43kW output to heat, which is priced at £1,916.94.

Why should you choose a Vaillant boiler

There are several positives around choosing a Vaillant boiler, so to help you make your decision we've summarised a few of them for you:

Which? Best Buy 2016

Reliable and efficient heating

Quiet Mark accreditation

Cost effective repairs

Designed for quick and easy installation

Customer rating of 7.3/10 on TrustPilot (as of 4/1/18)

Compare Vaillant boiler prices

BrandModel NameTypeFuelkWWarrantyExample Price*
(Including VAT)
VaillantecoTEC plus 412Heat-OnlyGas12kW5£749.07
VaillantecoTEC plus 415 15Heat-OnlyGas15kW5£824.74
VaillantecoFIT pure 612SystemGas12kW2£844.24
VaillantecoTec plus 612SystemGas12kW5£850.52
VaillantEcoFIT pure 825CombiGas25kW2£874.74
VaillantecoTec plus 615SystemGas15kW5£893.79
VaillantecoTEC plus 418Heat-OnlyGas18kW5£895.43
VaillantecoFIT pure 615SystemGas15kW2£901.66
VaillantecoTEC plus 424 24Heat-OnlyGas24kW5£961.62
VaillantEcoFIT pure 830CombiGas30kW2£974.18
VaillantecoFIT pure 618SystemGas18kW2£976.97
VaillantecoTEC Pro 24CombiGas24kW5£980
VaillantecoTec plus 618SystemGas18kW5£989.15
VaillantecoTEC plus 430Heat-OnlyGas30kW5£1026.36
VaillantecoTEC Pro 28CombiGas28kW5£1058
VaillantecoTEC Pro 30CombiGas30kW5£1083.29
VaillantecoTEC Plus 825CombiGas25.4kW5£1095.27
VaillantecoFIT pure 625SystemGas25kW2£1115.9
VaillantecoTEC Plus 624SystemGas24kW5£1131.17
VaillantecoFIT 835CombiGas35kW5£1145.09
VaillantecoTEC Plus 630SystemGas30kW5£1207.78
VaillantecoTEC Plus 832CombiGas32kW5£1207.79
VaillantecoTEC Pure 630SystemGas30kW2£1210.46
VaillantecoTEC Plus 835CombiGas35kW5£1282.92
VaillantecoTEC Plus 637SystemGas37kW5£1372.65
VaillantecoTEC 627SystemGas27kW5£1423.37
VaillantecoTEC Plus 938CombiGas38.7kW5£1530.98
VaillantecoTEC 835CombiGas35kW5£1586.43
VaillantecoTEC 843CombiGas43kW5£1916.94

Vaillant boiler type ranges

Vaillant produce gas and LPG combination, system & heat-only boilers. If you’re looking for an oil boiler, you may want to consider an alternative brand such as Worcester Bosch.

Here’s more information on each of the types of boilers available by the Vaillant brand.

If you're not connected to mains gas then you may be interested in an oil fuel alternative, you can find out more about oil boilers here.

Vaillant combi boilers

The most popular Vaillant series of combi boilers include the ecoTEC Plus, ecoTEC Pure, ecoTEC Pro and ecoFit. With a variety of boilers to choose from within each series. Ranging in kW output from 25kW to 43kW. The manufacturer-backed warranty varies on Vaillant combi boilers from 2 to 5 years.

Prices of Vaillant combi boilers start from £868.74 for the ecoFit Pure 825 combi boiler, ascending to £1,916.94 for the ecoFIT 835.

Vaillant system boilers

Vaillant have an extensive range of system boilers available including models in the ecoTEC Plus, ecoFIT, and ecoTEC Pure series. The Majority of Vaillant system boilers have a warranty that is backed by the manufacturer for up to 5 years. System boilers range in output from 12kW up to 43kW, so you should to find a suitable boiler for your home.

Prices of Vaillant system boilers start at £844.24 for the ecoFIT Pure 612 system gas boiler, ascending to £1,423.37 for the ecoTEC 627.

Vaillant heat-only boilers

The Heat-Only or Regular boiler range for Vaillant is slightly less extensive than the Combi & System range, however it still offers options suitable for most homes. The Heat-Only boilers available are the EcoTEC Plus models which have a range of outputs from 12kW to 38kW and they all come with an 5-year warranty.

Prices of Vaillant heat-only boilers start at £749.07 for the ecoFIT Plus 412 heat-only gas boiler, ascending to £1,026.36 for the ecoTEC Plus 430 regular gas boiler.

What is the Vaillant range suitable for?

Vaillant specialise in combi and system boilers, with a wide range available to suit different size homes and heat and hot water demands. When choosing your new boiler, you need to firstly consider what is the most suitable type and size of boiler for your home, heat and hot water demands. The most popular type of boiler in the UK is the gas condensing combi bioler, this is mostly due to their small compact size & overall efficiency in comparison to the other options. Combi's are typically suited to small to medium sized properties as if you have a larger home then you may require a higher demand for hot water in which a combi may struggle with as the pressure drops if there is more than one hot tap on at once.

The kW output is determined by the size of your house and number of radiators; generally, the higher the kW output of a boiler, the more demand for hot water it can cope with. If you need help determining what kW output you require for your Vaillant boiler, you can use the following as a guide:

24-27kW28-34kW35-42kW
1-2 bedroom3-4 bedroom4+ bedrooms
10 radiators15 radiators20 radiators
1 bathroom1-2 bathrooms2+ bathrooms

(This information has been supplied by Help-Link UK limited and has been produced for information purposes only and should not be used or relied upon as a substitute for professional advice by a suitably qualified engineer.)

* Prices correct as of 3rd September 2018 from the list of suppliers