Best boiler brands in 2023

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Viessman

Viessman has long been one of the most reputable boiler brands in Europe, and the German engineering brand is now taking the UK market by storm. If you want a high-quality, durable product then you won’t be left disappointed by Viessman’s impressive range of boilers. 

As many as 7 of Viessman’s boiler models have one Which?’s Best Buy Award in recent years, and we can’t really argue with this due to their technical superiority. 

One of the reasons that Viessman’s boilers stand out from the rest is the fact that their heat exchangers are made of stainless steel as opposed to aluminium, which is the norm. This means it takes longer for sludge and corrosion to build up, ultimately resulting in a longer-lasting machine. This is also reflected in the fact that most of Viessman’s boilers come with a 10 year warranty. 

Some of the most popular Viessman models include the Vitodens 050-W and the Vitodens 100-W, with prices ranging from £1,695 to £2,300.

Worcester Bosch

Worcestor Bosch is one of the most popular, as well as most recognised and trusted, boiler brands in the UK. Confirming its position as a market-leading brand since the 1960s, many of Worcestor Bosch’s combi boilers have won Which?’s Best Buy Awards each year for the last 10 years and counting.

The firm produces all types of boilers, whether it’s combi boilers, system boilers, regular boilers and oil boilers. So, whichever type of fuel you use and whichever type of home you live in, you’ll be able to find a heating system that works for you with Worcester Bosch. 

One of the features that makes Worcester Bosch stand out is its excellent customer service, which will continue long after your boiler installation. And to highlight their commitment to producing quality products, all of their boilers come with a 10 year ‘guarantee’. If it breaks down within this term (which it shouldn’t), the company claims it will be ‘100% committed’ to either repairing or replacing it. 

Together with Viessman, Worcester Bosch produce some of the most complete heating systems in the current market, and you can actually snag an installation for a very reasonable price, ranging from £1,900 to £2,600. While this doesn’t sound cheap at first, remember that these boilers are some of the best and most efficient around, so you’ll struggle to find as much quality for less.

Vaillant

Another winner of Which?’s Best Buy Awards, Vaillant is a well-respected and high-quality German-based boiler manufacturer. It might not have the same brand awareness or reputation that Viessman or Worcester Bosch has, but it makes up for this in excellent customer service and dependable products. 

Vaillant offers a wide range of well-built heating systems to suit all types of household and budget, all of them coming with up to 10-year warranties to boot. All of their boilers perform well when it comes to energy-efficiency, and they’re also extremely quiet machines - perfect for those who get irritated by constant low murmurings coming from the boiler room. 

One of the best all-round boilers that Vaillant offers is its ecoTec Plus combi boiler, which is an extremely efficient machine which has the added feature of being able to track your hot water and energy usage in real time.

The cost of a Vaillant boiler installation ranges from around £1,900 up to £3,900.

Ideal

With a history stretching back over 100 years, this British boiler brand based in Kingston-upon-Hull has built a reputation for producing solid, if unspectacular, central heating systems. Ideal offers a wide range of boilers to suit all budgets, including both cheap and cheerful models as well as high-end, high-performance machines. 

In terms of design quality and durability, Ideal’s boilers are good match when compared to some of the best in the market from brands like Viessman and Worcester Bosch, with the added bonus of being a fair bit cheaper. And thanks to their compact size and high levels of energy-efficiency, they are ideal for smaller households without the space for a large, chunky boiler.

Another reason why Ideal is one of the most popular boiler brands in the UK is the fact it has a simple but flexible warranty program. When buying a boiler with Ideal, you’ll be given the option of how much cover you want - either 2 years, 7 years, or 10 years. 

Prices for a fitted boiler range from £1,400 for the most basic models, to £2,900 for their luxury boilers.

Baxi

One of the olders boiler companies in the UK, Baxi (manufactured in Preston but headquartered in Warwick) has been operating all the way back to 1866. But while it doesn’t quite have the high-end reputation that some of its competitors can boast, it still offers a solid range of combi, system, and regular boilers.

In fact, Baxi has one of the widest and most eclectic range of boilers on offer, so you should be able to find one to suit your household. What’s more, where Baxi lacks in terms of high-quality design and production, it makes up for in value for money as well as excellent customer service and aftercare.

While its boilers may lack the sleek design and nifty features of some of the higher-end machines, they’re generally produced to a pretty good standard, and should last up to 14 years on average. This means that while not being spectacular, they’re still as durable as some of the best boilers on the market.

Baxi boilers also come at a pretty reasonable price compared to some rival brands, with a full installation ranging from just £1,500, up to £2,200.

However, warranties typically last just 1 to 2 years on Baxi boilers, which is less than the industry average. There is an option to extend this warranty by up to 10 years, although you’ll need annual servicing for this to be valid.

Intergas

With high-quality, sleek, and modern design across all of its products, Intergas is the boiler brand made for people who care about aesthetics. Founded in 2002, the Dutch manufacturer is a relative newcomer to the UK boiler market, which may explain why its not yet one of the most reputable brands around. 

Intergas’s boilers look much better than your bog-standard heating system, and most come with LED displays and remote control features that make controlling and tracking your hot water usage a lot more manageable.

And despite their eye-catching design, high energy-efficiency and durability, they are very reasonably priced when compared to alternatives, with boilers in its Rapid range starting at just £630. Warranties last between 3 to 10 years, depending on which model you go for.

Alpha

Advertising itself as a budget boiler brand, Alpha is a great choice if you want to snag a bargain on your central heating. But although its marketed at those with smaller pockets, with prices starting at just £520 (unfitted), you won’t actually be sacrificing too much in the way of quality. 

Just like Viessman’s models, Alpha uses stainless steel as opposed to aluminium for its heat exchanges, which means they’re more durable over time and less susceptible to corrosion or breaking down. 

Alpha has been selling boilers in the UK for over 50 years, and their simple yet effective Italian-led design and engineering has made their models a popular choice, especially among landlords looking to cut costs.

Their wide range of models include combi, system, and regular boilers, while their warranties range from 2 to 10 years. However, although the initial cost of Alpha’s boilers are relatively low compared to competitors, be aware of installation costs bumping the price up significantly.

Glow Worm

With a history dating back to 1934, this Derbyshire-based firm has a lot of experience in producing boilers and central heating systems. Grow Worm is known in the industry as being a ‘budget’ boiler brand, being particular popular in rental properties and small-scale renovations.

However, as you might expect with such low prices, the quality of the products that Glow Worm offers has some way to go to meet the standards of brands like Viessman and Worcester Bosch. But while they typically won’t last as long as boilers from these other brands, they all come with either 2 or 5 year warranties, so overall they’re a great choice for people on a budget or in a short-term rental home. 

And even though Glow Worm’s boilers are some of the cheapest on the market, with installations starting at just £1,100, they’re still pretty efficient at using energy - something which Glow Worm prides itself on. So, you won’t have to worry too much about your carbon footprint.

Potterton

One of the lesser-known boiler brands in the UK, Potterton has been in the industry for over 100 years, so it knows a thing or two about creating durable and dependable central heating systems. 

Up until recently, Potterton specialised in producing premium condensing boilers targeted at customers on the higher end of the budget scale, but it has since diversified and now produces a range of boilers to suit all budgets and needs (it’s combi boiler range starts at just £675!).

However, we still believe that Potterton’s more expensive boilers offer better value for money, as their more budget options are quite inconsistent in their build quality, and a warranty of just 2 years doesn’t fill you the utmost confidence. In particular, we recommend their Titanium combi boilers, which are great for larger households that use a lot of hot water.

Vokera

If you’re after a simple heating system without any of the bells and whistles, Vokera may just be the brand for you. Vokera is a relatively new entry to the UK boiler market with just over 35 years of experience in the industry, offering a small range of solid and dependable budget-friendly boilers.

Designed with simplicity and efficiency in mind, Vokera’s boilers are a great option for those looking for value for money. Installation costs start at just £1,200, while warranties last between 2 to 7 years, depending on the model.

And although their range is small in comparison to some of the more well-known brands, they still offer a choice of combi, system, and open vent boilers, so you should be able to find a machine suited to your household.