Welcome to our 2-minute guide to the best boiler brands.
Installing a new boiler is not cheap. A typical combi could cost over £2,000 including labour.
And, oil boilers tend to be much more expensive.
So, picking the best boiler brand is the first part of upgrading your central heating.
Once you’ve decided on a brand, you’ll need to determine what size boiler you need for your property.
Or, get an installation quote, and ask the boiler fitter for advice here.
This will help shortlist the best unit to suit your hot water and heating demand.
The Best Combi, Regular & System Boilers
We’ve split this guide into two sections.
Most manufacturers will make combi, regular and system boilers that are powered by gas or LPG.
If yours is powered by oil, we’ve listed 3 of the best oil brands at the end of the article.
#1 – Ideal Boilers
Ideal Boilers are a British manufacturer that have grown exceptionally over the last decade. They now sell over 10,000 units per year.
Unlike Worcester, their warranty isn’t confusing.
Ideal offer warranties that are:
- 2 Years – Ideal Logic
- 7 Years – Ideal Logic Plus
- 10 Years – Ideal Vogue
Ideal Boilers are generally the odd one out. They are heading for being known as a premium brand, but they sit in the mid-range in terms of price.
The boilers that rival Worcester Bosch, tend to be 10-15% cheaper.
And, they offer a similar, if not a better warranty.
#2 – Worcester Bosch
Worcester Bosch are considered by many to be the best boiler brands. But, that doesn’t mean they are.
They offer boilers in all shapes and sizes:
They’ve had great success with models like the CDI and a Greenstar 25I/30I. The warranty ranges from 5-10 years.
And, the exact warranty depends on the boiler you choose, and the other Worcester branded products you use.
For instance, adding a Worcester Bosch system filter, will add on a further year’s warranty.
Worcester Bosch boiler prices are among the most expensive.
However, many comparable products from Baxi and Vaillant are similar in price.
#3 – Vaillant
Vaillant are up with there with the best. Most recently, their EcoTec range has become their most popular product line.
They don’t have the branding behind their company that Worcester does, but the support network is there.
They offer great warranties and a service team to help with problems, for boilers that are under warranty.
Generally, their products have a 2, 3 or 5 year warranty attached to them.
Expect Vaillant boilers to be in a similar price bracket to Worcester Bosch, Ideal Boilers and Baxi’s equivalent products.
#4 – Potterton
Potterton don’t have the street cred of Worcester, Vaillant, or Ideal. But, they’re rated extremely highly by engineers.
The old and new boilers from Potteron are well built, and tend to last.
That was the generally consensus, until they started to trying to make cheaper boilers, which led to a reduction in warranty to just 2-years.
And, that doesn’t exactly fill a buyer with confidence.
Potterton tend to sit just below Worcester, Vaillant and Baxi in terms of price; similar to the Ideal.
And, given all of the above boiler brands are bigger, and have a better service support network, those are the brands that engineers tend to install.
#5 – Baxi
Baxi’s quality rivals all the best boiler brands including:
- Worcester Bosch
Like these brands, they offer a range of boilers including system, regular and combis.
Price wise, expect them to be just slightly less than a Worcester Bosch equivalent.
#6 – Glow Worm
Glow-Worm tends to sit in the category of “best of the rest”, with other boiler brands such as Vokera, and Potterton.
Glow-Worm are a cheap boiler brand. They tend to be used on budget renovations and rental properties.
Reliability wise, they’re certainly not known for being up there with the likes of Vaillant, Worcester, Ideal and Baxi.
That said, they do offer 2 and 5 year warranties on their boilers, so in the short-term, they’re cost effective.
It’s not all bad-news. Glow-Worm boilers are regularly priced as “special offers” at local plumbing merchants.
So, that means they are cheap to buy, and cheap to install. Expect Glow-Worm to be priced similar to Vokera boilers, if not a little cheaper.
The Best Oil Boiler Brands
Not all boiler brands will produce oil boilers.
So, here are the best brands to keep note of, when shopping for an oil fuelled boiler.
#1 – Grant
#2 – Worcester Bosch
#3 – Vaillant
Which New Boiler Should You Choose?
The most important things to consider when choosing a boiler brand are:
All things considered, I’d choose to install a Ideal Logic Plus (7-year warranty).
Or, if I needed an oil boiler, I’d choose a Worcester Bosch.
Ready to have a new boiler fitted? Get quotes and ask the boiler fitter for advice here.
Thanks for reading our 2-minute guide to the best boiler brands.
If you have any questions, leave a comment below and we’ll reply as soon as possible.