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Vaillant ecoFit Pure 412 Regular Boiler – Review

In this Vaillant boiler review, we’ll be taking a closer look at the ecoFit Pure 412 Regular boiler. It’s not the biggest boiler out there but definitely one to consider for smaller households. Read on to find out everything you need to know about the Vaillant ecoFit Pure 412 to see if it’s the best fit for your home.

Before we get into the main part of the Vaillant ecoFit Pure review, let’s first introduce you to Vaillant, one of the leading boiler manufacturers in Europe. Vaillant is a German company that has been going since 1874. Pioneers in the heating market, it played an essential role in the development of water heaters in the early 1900s and the combi boiler in the early 1960s. Today Vaillant continue to excel in innovation and are one of the go-to brands for superior quality home heating systems.

Now that you know a little more about the brand, let’s discuss the ecoFit Pure 412, one of the brand’s most compact regular boilers.

Will the Vaillant ecoFit Pure 412 be suitable for my home?

The Vaillant ecoFit Pure Regular 412 is best suited to small homes with just one bathroom. With a central heating output of 12kW, it can comfortably heat up to 10 radiators. It is a sound choice for those wanting to replace an old, inefficient regular boiler.

All regular boilers, like the Vaillant 412, require a hot water cylinder (often stored in an airing cupboard) and a loft tank. Vaillant has its own range of hot water cylinders, called uniSTOR, but keep in mind that the Vaillant ecoFit Pure is compatible with a wide range of hot water cylinders, including the popular Heatrae Sadia Megaflo or Megalife ranges. You don’t have to stick with the boiler brand.

One of the great things about regular boilers is that you get a constant supply of hot water. The ecoFit Pure 412 will supply hot water to a number of taps simultaneously so you can be running water in your bathroom, while someone else is using it in your kitchen.

Made from high-quality aluminium, the Vaillant ecoFit Pure regular boiler is designed to stand the test of time, with easy maintenance. It’s also compatible with homes using solar and heat pump systems and can contribute to both a reduced carbon footprint and cheaper energy bills.

Fed up of noisy boilers? The Vaillant 412 holds the Quiet Mark award for innovative noise reduction. It won’t keep you up at night or wake you up in the morning!

The 412 has the smallest central heating output in the Vaillant ecoFit Pure range, so if you require more power, it’s worth knowing there are 15kW, 18kW, 25kW, 30kW and 35kW outputs available.

If you are looking for a regular boiler from another brand to compare the ecoFit with, the Worcester Bosch Greenstar 12Ri, which is a similar size and has a 12kW output too.

Vaillant ecoFit Pure 412 Regular Controls

The Vaillant ecoFit Pure has a simple and easy-to-use control panel, which includes an LED display, pressure gauge, reset button and switches for the central heating and hot water temperatures. You’ll be pleased to hear that because of the temperature controls, it is fully compliant with Boiler Plus legislation.

For greater control, we recommend linking your Vaillant 412 boiler with a smart thermostat. The boiler is compatible with a number of different models, such as the brand’s vSMART™ thermostat, along with the Nest and Hive – two popular smart thermostats you may have already heard of.

Paired with smart controls, in the form of mobile apps, these thermostats give you the freedom to monitor and control your heating system at your convenience, from any location.

ecoFit Pure 412 Regular Size

One of the standout features of the Vaillant ecoFit 412 is its compact size. Measuring 602x375x295mm, it is intended to fit in a kitchen cupboard. However, kitchen cupboards can come in all shapes and sizes, so we always recommend measuring up first! The boiler also has a flexible rear flue option so you will have more choice as to where to position your new boiler.

Vaillant ecoFit Pure 412 Regular Warranty

Choose Hometree to install your Vaillant ecoFit Pure and benefit from a free 5-year warranty. This can be doubled up to 10 years for a small additional charge.

Why choose us? Well, the simple answer is, we’re experts at what we do. All of our Gas Safe engineers have the skills and knowledge to carry out boiler installations of the highest standards. But don’t take our word for it – read our reviews! HomeTree is also a Which? Trusted Trader and rated excellent on Trustpilot.

ecoFit Pure 412 Energy Efficiency

Today it’s paramount that boilers achieve high levels of energy efficiency to comply with regulations, like Boiler Plus. The good news is that the Vaillant ecoFit Pure 412 is A-rated with a fantastic ErP rating (previously known as SEDBUK) of 89.3%.

Not sure what this means? ErP stands for Energy-related Products and is a system for rating how energy efficient a boiler is. Just like at school, ‘A’ is the best rating you can get. So if your old boiler has a lower ErP rating and you swap it for a new A-rated boiler, you should see a decrease in your energy costs.

Verdict – Is the Vaillant ecoFit Pure 412 Regular the best boiler for your home?

The Vaillant ecoFit Pure 412 Regular boiler is an excellent choice for those looking to replace an old, inefficient heating system. Its compact size makes it ideal for households lacking space, and the 12kW output is more than enough power for those with 10 radiators or less. The fact you can get instant hot water is also a huge benefit to be considered.

The more environmentally conscious will be pleased with the Vaillant 412’s excellent ErP rating, and the fact it can be used with a solar power system offers even more opportunities to reduce your carbon footprint. All the while benefiting from lower heating bills.

If you like what the Vaillant ecoFit Pure 412 Regular boiler has to offer and want to find out more, feel free to get in touch with our team of Gas Safe heating engineers.

 Vaillant ecoFit Pure 412
ErP rating (energy efficiency)A (92%)
Size (HxWxD in mm)602x375x295
Heating output (kW)12
Standard warranty (years)5 (extended warranties available)
Other available sizes (kW)15, 18, 25, 30, 35

Which? boiler review

The consumer group Which? review each boiler on the market to find the most (and least) reliable boilers according to a survey completed by thousands of boiler owners. In each review, Which? supply a brand score percentage and star ratings for each category. Take a look at the Vaillant ecoFit Pure 412 Regular boiler ratings below:

Which? Score 
Efficiency rating★★★★★
Brand reliability★★★★☆
Brand customer score★★★★★
Ease of repair★★★★★
Ease of service★★★★★
Availability of parts and spares★★★★★
Build quality★★★★★
Engineer recommendation★★★★★
Brand score80%

Boiler manual

Vaillant ecoFit Pure 418 Regular boiler manual

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