Everything You Need to Know About Vaillant Boilers

About Vaillant Boilers

Vaillant boilers were founded in 1874, by Johnann Vaillant and remain a family-owned company to this very day. Its main base is in Remscheid, Germany but it now supplies top quality products to over 20 countries.

In 1963, Vaillant were the pioneers of the first ever combi boiler to hit the market. An invention that changed the heating industry forever. For over 144 years, Vaillant has been revolutionizing the hot water and heating industry with regular and innovative production of A-rated heating systems.

In recent years, Vaillant Group has been focusing on renewable energy technology that keeps its customers in mind. Their ‘thinking ahead’ mantra means they’re staying in front of the curve, and paving the way for other manufacturers in the industry.

As one of Europe’s leading heating technology companies, Vaillant is aware that its products allow its customers to minimise their carbon footprint, as well as keep their energy bills down.

Over the years, Vaillant has built a solid reputation for its performance, quality and reliability. However, we wouldn’t want you to just take our word for it. Here’s everything you need to know before committing to a brand new Vaillant boiler…

Reasons to get a Vaillant boiler

Which? Best Buy Award

Vaillant were first accredited with the Which? Best Buy Award in 2008, and just this year (2019) has again received the sought-after accolade for the whole range of ecoTEC boilers.

The Which? independent research even found that Vaillant boilers are the most popular choice amongst boiler engineers. 177 boiler engineers were surveyed and Vaillant came out on top.

German heritage, made in Britain

German technology is widely known to be robust, reliable and reputable. So, Vaillant is in good company, as world famous brands like Mercedes Benz, BMW and SAP are all headquartered in Germany.

However, Vaillant also now have a factory in Belper, Derbyshire, UK, where it manufactures energy efficient heating systems and employs hundreds of Brits.

Quiet Mark approved

Vaillant boilers are among some of the only boilers to receive the Quiet Mark approval. Since 2014, the whole ecoTech boiler range has received the coveted mark.

The Vaillant ecoTec range noise level is 49 decibels (dB), in comparison to the Worcester Bosch Green Star 25i which sits at around 53 dB. For context, a fridge’s noise level is around 40 dB, rainfall 50 dB, and a washing machine is 70dB.

There are only a few other models of boilers that have received the Quiet Mark approval. Find out more about the quietest boilers on the market in our dedicated blog.

Energy efficient

Vaillant Group pride themselves on their energy efficiency – which is perfect for us, because at Hassle Free Boilers we only recommend and fit A-rated boilers. Replacing your old heating system with a brand new energy efficient Vaillant boiler could save you up to £320 on your energy bills annually. So, it really does pay to upgrade!

How much does a Vaillant boiler cost?

Vaillant gas boilers start at £2100 (inc. VAT), but the total cost of a new boiler for an individual home depends on its needs. However, with Hassle Free Boilers’ unique subscription package, you can get a brand new boiler installed for just £39.99 per month.

All Vaillant boilers come recommended in Europe because of their sustainable designs and high levels of efficiency. Every Vaillant boiler comes with a standard guarantee, that we strengthen by adding our own Hassle Free Boilers guarantee, for up to 12 years.

Vaillant offer a wide range of boilers from combination, through to system and open vent boilers too. We always promise to help you find the right boiler for your home’s requirements. So, let’s take a look at the full Vaillant range…

Vaillant Combi boilers

Vaillant Combi boilers is what helped make the Vaillant name. Having pioneered the technology back in 1963, combi boilers have revolutionised the industry. They offer the EcoTec Pro, EcoTec Plus, EcoTec Exclusive, EcoFit Sustain and Ecofit Pure combi boilers that are suitable for all types of houses.

They’re perfect for modern homes because:

  • You get hot water on demand
  • No need for a water tank
  • Compact, so perfect for smaller homes

The only potential downside of having a combi boiler is that the water pressure could be a little lower than other boilers, especially if two taps are used at the same time.

Check out the cost of Vaillant Combi boilers using our boiler search tool.

Vaillant System Boilers

Vaillant System boilers are eco-friendly yet very good for homes that require a lot of hot water output. Some key things to know about Vaillant System boilers:

  • Needs a hot water tank (usually stored in an airing cupboard)
  • Advantageous for homes with more than one bathroom
  • Constant supply of hot water

Find out the cost of a Vaillant System boiler using our boiler search tool.

Vaillant Open Vent Boilers

Vaillant Open Vent boilers, also known as ‘regular’ or ‘heat only’ boilers, uses both a cold water tank and a storage cylinder. Often the best choice for bigger families, a Vaillant Open Vent boiler allows taps, baths and showers in different rooms to be used at the same time, without compromising pressure or temperature. The key things to know about this type of boiler include:

  • Best for large homes with multiple bathrooms
  • Allows lots of hot water to be used at once
  • Compatible with heat pump heating systems and solar water

Use our boiler search tool to find out if a Vaillant Open Vent boiler would be best for your home.

How long should a Vaillant boiler last?

Vaillant warranty

Vaillant boilers are known for their reliability. They come with a standard warranty from Vaillant, but we bolstor this through our subscription service. We offer up to 12 years guarantee through our subscription model, and you’ll also get a Vaillant boiler service each year too. This helps to maintain the guarantee, and keeps your boiler in tip-top condition.

If there’s ever an error with your Vaillant boiler, our Gas Safety engineers will fix it at no additional cost to you.

Vaillant boiler reviews

Obviously, we think Vaillant boilers are fantastic. As we only supply the top 4 rated boiler brands (by Which?), we know whatever boiler you choose will be a great addition for your home. This quote on Vaillant’s Trust Pilot page says it all:


 There’s thousands of five star reviews for Vaillant boilers on Trust Pilot – take a look to see what other people think!

Vaillant Boiler repairs

As with any piece of technology, there may be trouble shooting that’s needed from time to time. Most issues with boilers occur during the winter months, after heating systems have been switched off over the summer.

However, we only work with Gas Safe Engineers, so we’ve got you covered through our subscription service, if anything ever goes wrong.

Vaillant also offer advice for dealing with any issues that may arise at home, such as a simple guide on how to defrost a frozen condensate pipe. This can happen during extremely cold weather to any type of boiler, but it’s pretty simple to fix.


What’s better: Vaillant or Worcester Bosch?

Vaillant and Worcester Bosch both provide top of the range boilers and heating technology. And both brands offer boilers for all types of homes that are energy efficient and A-rated.

While we recommend both of these boilers, if you value quietness over everything else, then you may want to go with a Vaillant. It is one of only a handful of brands to boast the Quiet Mark Approval.

Vaillant may also come out on top with their focus on sustainability, but if the boiler aesthetic is what’s most important to you, then the Worcester Bosch may just edge it with their modern Greenstar Lifestyle design.

Ultimately, we want to help you choose the boiler that’s right for you and your home. Our boiler quote tool can help you to make an informed decision, but if you need a little more help, just talk to one of our knowledgeable customer service team by calling 03456 47 47 47.

Your Vaillant Boiler Quote

We hope you’ve enjoyed this article that’s all about Vaillant boilers, but if you need any further advice please do get in touch with us on the number above.

We always advise people to have a new boiler installed instead of fixing an old, inefficient one. Not only will this help to keep your energy bills down – by upto £320 per year, but it will also help to reduce your carbon footprint.

Overall, we would recommend getting a Vaillant boiler because they’re reliable, eco-friendly and quiet.

Fill out the form below for you no-obligation quote!