Considering a Baxi boiler, but still weighing up your options?

Choosing a new boiler can be tough, as there are so many great brands out there.

Maybe, like many of my customers, you’ve been attracted to Baxi because of its household name and good reputation – but how does it compare to the likes of Vaillant or Worcester Bosch?

Good question.

Below, I’m going to tell you five of the biggest advantages Baxi has over some of the other leading brands.

Advantage 1: Extra long, twin flue

By far, this is the biggest benefit Baxi has over other leading boiler brands. The brand is actually one of the only boiler manufacturers to offer a twin flue system.

What this means for you is that your boiler can be located long distances from an outside wall – in places where it might otherwise be impossible to fit a Worcester Bosch or Vaillant boiler.

Normally, your flue can run vertically and terminate through the roof, or it can run horizontally with a standard flue kit (100mm diameter) up to 10m. A larger diameter flue kit (125mm) can run up to 20m – or with a twin flue pipe (80/80mm), it could run a distance of up to 15m.

Since a twin-flue system is only 80mm in diameter, it can be fitted in ceiling voids if the boiler is located in an internal cupboard. This is a clear advantage, as most ceiling voids cannot accommodate a 125mm flue duct and brackets.

Advantage 2: Better value for money

Over the years, many customers have come to me looking for a reliable new boiler with a long guarantee. After some research, they often decide they don’t want to pay a premium for a brand name such as Worcester or Vaillant, which is why Baxi appeals.

They particularly like the idea of having a higher output and longer guarantee for the same price as a Worcester or Vaillant – think of it as ‘more bang for your buck’!

To demonstrate the amount of thought Baxi have obviously put into this: Imagine you were to purchase a Worcester Bosch 30i ERP, which gives 12.3 litres per minute and an 8-year guarantee.

For the same price, you can have a Baxi 33HE Platinum which gives 13.5 litres per minute, and a 10-year guarantee – plus, you wouldn’t have to fork out for the brand’s filter and controls to take advantage of that 10-year offer (more about that below).

Another example: if you were to compare the Worcester 34cdi Classic to the Baxi 33HE platinum, the Worcester Bosch gives a slightly better flow rate but the Baxi platinum 33HE is around £280 cheaper and both have a 10-year guarantee.

Now that’s definitely a bargain!

Advantage 3: 10-year guarantee (with no catch)

Another great benefit of buying a Baxi boiler is that the Baxi platinum and Eco Blue Advance range come with a fantastic 10-year guarantee.

Although you can also get a long-lasting guarantee with Worcester Bosch, you won’t be obliged to fit a Baxi filter and controls in order to get a full 10-year guarantee. This puts Baxi on a par with Vaillant as having one of the best guarantees on the market.

It also means you or your installer can choose controls that are as simple or sophisticated as you wish. Not to mention, you can fit any central heating filter of your choice – this is a good thing as some filters come with dual action and give a better performance than others.

As with any manufacturers’ warranty, your new Baxi boiler must be serviced by a Gas Safe Registered engineer once a year to keep your guarantee valid.

Advantage 4: Household name

Finally, Baxi is not only a household name but also a well-loved and respected brand in the UK. This gives them an advantage over the likes of Vaillant, which is not quite as well known.

My customers are more likely to ask for a Baxi brand boiler by name than a Vaillant or other lesser known brands – partly due to the fact that there are so many Baxis already installed in British homes, and you generally feel more comfortable sticking with a brand you know.

TIP: Baxi does offer a compact model – the Baxi EcoBlue+ combi, which can easily fit in your kitchen wall cupboard at 700m high 390mm wide, 295mm deep and comes with a 7-year guarantee.

Advantage 5: Manufactured in the UK

Another big benefit of Baxi is that all their boilers are manufactured in the UK, which has obvious appeal as it means parts are easier to source.

Many customers also like the fact that they are supporting British manufacturers, giving them an advantage over the likes of Vaillant.


If you’re thinking about buying a new Baxi boiler, but are still on the fence, I’ve put together four of the main advantages Baxi boilers have over their biggest competitors such as Worcester Bosch and Vaillant.

The main advantages Baxi has over other companies such as Vaillant and Worcester Bosch are:

  1. Extra long, twin flue
  2. Better value for money
  3. 10-year guarantee (no catch)
  4. Household name
  5. Manufactured in the UK

Which advantage makes Baxi appeal to you most? Let us know in the comments section!