Baxi Boiler Reviews 2021

Baxi Boiler Reviews 2021

Baxi is a significant and well-established UK manufacturer of high-quality, reliable boilers founded in 1866 and currently headquartered in Warwick.

Their main aim is to deliver value-for-money heating equipment to homeowners and businesses which are both reliable and energy efficient alongside providing quality customer service with environmental sustainability. 

If you need to upgrade your boiler or require a new system, you have three options. You can choose from a system boiler, a regular boiler, or combi-boiler.

Both system and regular boilers require a lot of space within your property to house the storage facilities for the hot water they produce.

Combi boilers, on the other hand, heat water almost instantly as it passes through the equipment and they are much smaller, wall-hanging units.

Gas combi-boilers are generally best for most residences because they are energy-efficient and reduce your environmental footprint as well as being cheaper to run and taking up less physical space.

In this review of Baxi gas combi boilers in 2021, we’ll cover:

• who Baxi is
• what a combi boiler is
• the key stats you need to know about combi boilers and what they mean
• the top 10 Baxi boilers according to HomeSage’s exclusive grading guide
• Baxi vs other manufacturers – what do customers think?
• Baxi’s top 5 gas combi boilers up to 27kw
• Baxi’s top 5 gas combi boilers from 28kw to 34kw
• Baxi’s range of gas combi boilers with 35kw+ output

In this article, we’ve scored each of the top ten gas combi-boilers from Baxi using our exclusive grading guide to help you make an informed decision on your next boiler purchase. 

We’re HomeSage – we work alongside a network of trusted, established Gas Safe boiler installers up and down the UK.

We help to save you up to 54% on the total cost of the supply and installation of your new boiler – simply fill in a form anywhere on this page.

Once you have sent us your details, we forward these on to boiler installation companies that service your area.

These companies are keen to give you the most competitive quote to win your order and some customers have reported a 54% difference between the highest and lowest quotes, so shopping around is always worthwhile!

Who is Baxi?

Baxi belongs to the massive BDR Thermea group, a company which specialises in domestic and commercial space and water heating solutions.

It is one of Britain’s largest privately-owned companies.

Originally established in 1866 in Lancashire by Richard Baxendale, the company has been involved in the development of many pioneering boiler advances we take for granted today over the past 150 years.

Today, they have a strong push towards environmentally-friendly heating solutions. 

The UK Baxi factory is located in Preston whereas the customer call centre and head office is currently in Warwick.

Over 6,000 calls a day are taken on average by the call centre and they also offer advice through user comments on Trustpilot.

What is a combi boiler?

A combi-boiler heats water as it passes through the boiler directly from your mains supply.

When you turn on the hot tap or the heating, the internal gas burner is ignited and a heat exchanger heats up the water.

This means you get hot water almost instantly without having to wait.

Compared to regular boilers or system boilers, combi-boilers are much more efficient in both the running costs they incur and the amount of energy they use.

Nearly all models now feature a higher energy efficiency rating and, because of their size, they’re ideal for smaller properties because they are mostly small, wall-hung units.

There’s no need for an extra storage tank of water so it doesn’t matter if you don’t have a loft or excess space.

You can even mount your combi boiler inside a kitchen cabinet so it’s extremely discreet and fits in with your interior design.

Combi boilers are usually cheaper to install as you don’t need extra pipes for water tanks and as they don’t require pipework in the loft or outside, there is no worry of the pipes freezing over in cold weather. 

Baxi currently have 20 different combi boilers on the market and we have compiled a list of our top ten below for your information.

You could also check out our article on the best combi boilers on the market in 2021!

Key combi boiler stats

There are three main factors to think about when you’re choosing your new boiler – the flow rate, the output and the energy efficiency rating.

These three elements need to be correct for your property size and hot water needs to make sure you get the most out of your boiler for the lowest annual cost. 

Combi boiler flow rate

This tells you how many litres of water will come out the hot tap and into your radiators within one minute.

It’s like a gauge to let you know how much water you can get in a certain amount of time.

The higher the flow rate, the more hot water you can get and at a quicker speed.

It’s important to note that flow rate is also dependent on the amount of water your mains supply provides your property.

For example, even if your boiler has a flow rate of 12 litres per minute, the maximum flow rate will be 10lpm if your mains supply has a limit of 10 litres per minute. 

Combi boiler output

The boiler output tells you how much energy it uses and how much it will cost you.

If you have a boiler with an output of 25kW and a unit of gas is 4p, your equation will be 25 x £0.04 = £1.00.

It’s important to choose the right output for your needs so you balance the power of the boiler with your actual heating and hot water requirements.

Too high of an output means you’ll consume more power than you need so your bill will be too high for your size of property.

Conversely, if you choose a boiler with too low an output rate, you won’t get the power required for your property size and the water may not be particularly hot when it comes out of your taps.

Combi boiler energy efficiency rating

This refers to the percentage of power used by the boiler to heat the water required for hot running water and for heating compared to how much energy the boiler uses itself to do the job correctly. 

For example, if a boiler is 96% efficient, 96% of the energy it uses goes directly towards heating the water and the remaining 4% is ‘lost’ energy that the boiler has used up itself. 

The more efficient a boiler is, the lower your energy bill will be.

If you have a boiler which is only 70% efficient, you are paying extra money for the same amount of heat which a more efficient boiler could provide for a cheaper cost.

As with all domestic appliances like fridges and kettles, boilers have efficiency ratings of A – G, with A being over 90% efficient and the most economical to run.

Baxi’s top ten gas combi boilers

There are currently 20 different Baxi combi boilers on the market.

Here at HomeSage, we have created our own unique scoring system for each boiler available. We have based our rankings on:

• the efficiency rating,
• the type of fuel (because gas is the cheapest, gas boilers get the maximum score),
• the length of their warranty, and
• genuine Trustpilot reviews – we take into consideration the number of reviews and the average score.

According to our HomeSage ranking system, our top ten Baxi boilers are as follows:

How does Baxi compare with other manufacturers?

On Trustpilot, Baxi finishes second for the number of reviews and joint eighth on their average review score with Grant and Viessmann.

We think Trustpilot offers a valuable insight into how well a boiler manufacturer performs because these are real customer reviews.

Where a company has more reviews but the same average score as another, we place them higher on our table.

What do customers on TrustPilot say about Baxi?

Happiness with the product

Baxi have an overall rating of ‘excellent’ on Trustpilot with 80% of customers awarding this score. 10% of customers reviewed Baxi as ‘bad’ or ‘poor’.

We have compiled a small selection of recent reviews of Baxi boilers to give you an insight into their customer’s experiences.

• On the 23^rd June 2020, Rebecca said “the engineer was very polite and kept me well informed of what the problem was and how he was going to resolve the issue. Excellent service.”

• Also on the 23^rd June 2020, Helen D reviewed that Baxi were “excellent and professional. Advised on time of visit night before, turned up on time and completed service promptly.”

• On the 19^th June 2020, June Credidio wrote that “my boiler was due for a service today. I got a call from the engineer this morning saying he’d be here between 11 and 1. I’m still waiting. It’s now 6.30pm. Tried ringing him but his call was withheld. I rang Baxi and was in a queue for over 20 minutes. I gave up. I’ve heard nothing from the engineer. Not happy!!”

The guarantee period and after-sales service

As with most boilers, you need to register your product within 30 days of installation with Baxi.

As long as your boiler is serviced annually by a Gas Safe engineer and you have the correct commissioning paperwork, Baxi offer warranties of up to 10 years for their boilers depending on the model. 

Here, we have compiled a list of recent Trustpilot reviews that specifically mention the Baxi after sales service.

• On the 23^rd June 2020, JimH reviewed “I’ve had the Baxi boiler care package for 3 years since my boiler developed a fault around Christmas time (no heating in December with Christmas around the corner wasn’t great). Baxi fixed the problem quickly and has maintained it ever since. The included annual service gives me peace of mind and the engineers are always quick, helpful and tidy. Very happy with the service.”

• Paul Hodgson wrote “The technician was very knowledgeable and carried out a very good deep service, which other engineers had not done. The service as normal was very good, this is why I have used Baxi for 14 years now’ on the 23^rd June 2020.”

• Sean Pennicott reviewed that “The tank that came with the boiler developed a leak while only 5 years old and regularly serviced, tried to contact the company in December 2019. I got a response in April 2020. Meanwhile I had to pay for a new boiler and cancel the holiday as I couldn’t afford it. Advised me to start the complaints process which was a total waste of our time and all they did was continually ask for the same details over and over. Highly recommend this company is avoided where possible.”

Baxi’s top 5 gas combi boilers up to 27kw

If you live in an apartment or a 1 or 2 bed terraced house with under 10 radiators, you are best choosing a boiler with an output up to 27kW.

These boilers are suitable if you have one bathroom in your property.

Baxi Platinum 24kw Boiler (92.69% HomeSage score)

The Baxi Platinum 24kw boiler has a full 10-year warranty that covers labour and parts.

It includes the Baxi EasyFill system which means it’s simple for you to top up your central heating system pressure without the need to ring a plumber.

The dimensions of this boiler are 780mm x 450mm x 345mm so on the larger size.

It rates ‘B’ for energy efficiency (though only 1% below ‘A’) so you can be sure your heating bill will be low providing you have the right output for your property size.

Baxi EcoBlue Advance 24kw Boiler (92.51% HomeSage score)

As with all Baxi boilers, this model is made in the UK using brass components.

It is 763mm x 450mm x 345mm in size and it is finished with a durable white outer layer. 

It has a fold-down cover concealing the control panel and is sleek in its overall design.

The EcoBlue advance range from Baxi comes complete with a full 10-year warranty as standard so you can relax in the knowledge your parts and labour are covered should something go wrong.

This boiler meets the minimum energy efficiency rating required for Boiler Plus compliance and is Energy Saving Trust Endorsed.

Baxi 624 Boiler (90.56% HomeSage score)

This is one of the few compact boilers in the Baxi range so if you’re short on space in your kitchen, you could fit this within one of your cupboards (always check measurements first).

The dimensions are 700mm x 390mm x 285mm. 

It has the traditional white boiler finish with a durable outer shell and a digital control panel that is directly on the front of the system so no fold-down cover. 

This boiler comes with a 7-year warranty and it features the Baxi EasyFill technology which should limit the number of callouts for a plumber as you can easily top up your system pressure yourself. 

Baxi Duo-tec 24 Boiler (89.60% HomeSage score)

The Baxi Duo-tec 24 has a contemporary, minimal finish with a white gloss shell and a chrome trim.

There is a fold-down cover for the control panel which has user friendly controls and an easy-to-read display.

The dimensions of this boiler are 780mm x 450mm x 345mm so it is certainly on the larger size.

It comes complete with a 7-year warranty and it is one of Baxi’s most popular boilers.

This range was developed by Baxi for the ultimate in easy installation, servicing and fuss-free operation. It is an Energy Saving Trust endorsed product.

Baxi 424 Boiler (82.72% HomeSage score)

Similar in specification to the Duo-tec 24, the Baxi 424 boiler is more compact in size measuring in at 700mm x 395mm x 279mm. 

The 400 range from Baxi has been developed to be ultra-quiet so you won’t get any strange bumps and groans from this system.

Aesthetically, this boiler is simple and straightforward-looking with a user-friendly control panel and a clear digital display.

If you like the sound of this boiler but you need a little more power for your property, you could consider the Baxi 428 which is the same size but has a higher output level. 

Baxi’s top 5 gas combi boilers (28-34kw)

If you live in a medium-sized terrace or semi-detached house with 3 to 4 bedrooms and up to 3 bathrooms, a boiler of 28-34kW would be the output you should go for.

For reference, a 34kW boiler will run about 15 radiators.

Of the 9 Baxi 28-34w combi boilers, here are the top 5 as ranked by HomeSage.

Baxi Platinum 28kw Boiler (92.36% HomeSage score)

The Baxi Platinum range has been designed to be intelligent boilers as they use an advanced control system to automatically adjust the heat output to save you money.

They are reliable boilers which adapt to demand without switching on or off, which makes them more energy efficient. 

This boiler benefits from high quality brass hydraulics and stress-free access for servicing, so they are a favourite with boiler installers. 

The dimension of this boiler is 780mm x 450mm x 345mm and is finished in a gloss white outer shell and minimalist silver trim.

Baxi EcoBlue Advance 28kw Boiler (92.18% HomeSage score)

As with the other EcoBlue boilers in the Baxi range, this boiler is a straight-forward, reliable machine with a focus on reliability and energy saving. 

This particular model measures in at 763mm x 450mm x 345mm and it features a traditional white finish with a control panel cover. 

It comes with a full 10-year warranty for parts and labour, providing you service it annually by Gas Safe engineers and you have the correct paperwork to accompany your boiler. 

Baxi Platinum 33kw Boiler (92.18% HomeSage score)

This boiler is a high-quality machine with a free, all-inclusive 10-year warranty.

Baxi have developed the Platinum range to use top-end brass components for a superior and long-lasting heat system. 

The measurements of this boiler are 780mm x 450mm x 345mm.

It benefits from features such as the EasyFill system pressure technology and intelligent heat controls so you will have minimal callouts and a much lower energy bill.

It is a smart boiler both in features and appearance with a white gloss finish and modern chrome trim above the control panel cover.

Baxi EcoBlue Advance 33kw Boiler (91.94% HomeSage score)

All EcoBlue Advance boilers from Baxi come with a 10-year warranty so you have peace of mind that you’re covered should something go wrong. 

The Baxi EcoBlue Advance 33kw Boiler has the same dimensions as the other EcoBlue boilers in the range – 763mm x 450mm x 345mm – and the same minimalist finish with a concealed display panel and user-friendly control panel.

This boiler is Energy Saving Trust endorsed and it meets the minimum energy efficiency rating needed for the Boiler Plus compliance. 

Baxi 428 Boiler (91.59% HomeSage score)

The Baxi 428 boiler is a compact boiler which measures in at 700mm x 395mm x 279mm and which weighs less than a more traditional combi boiler at 26kg meaning it’s quick and easy to install.

Due to its compact nature, it could easily fit within a kitchen unit to maximise on space.

This range of boilers are developed to be ultra-quiet and come with a parts and labour 5-year warranty. 

Baxi’s range of 35kw+ gas combi boilers

If you have a larger property like a semi-detached or detached home with 5 or more bedrooms, gas combi boilers of 35kW and higher are the suitable choice for you.

To put this in perspective, a 42kW boiler will run approximately 20 radiators.

Here are the top 4 as ranked by HomeSage – please note that there are only 4 boilers whose output is greater than 35kw currently in the Baxi range.

Baxi 636 Boiler (92.43% HomeSage score)

A compact boiler with power, the Baxi 636 boiler is a very reliable heating system.

It measures 700mm x 390mm x 285mm but don’t be fooled by the small dimensions – it would not have a problem heating a larger home.

The boiler itself has a contemporary gloss white finish and an easy-to-use display panel featuring a digital screen, clear pressure gauge and setting dials.

It can be linked to your smart device to control your home’s hot water and heating through the Baxi app which makes managing your heating easy from anywhere.

Baxi EcoBlue Advance 40 Boiler (91.8% HomeSage score)

Get instant hot water with the Baxi EcoBlue Advance 40 boiler.

It has an exceptionally high output of 40kW so you don’t need to worry about heating a larger property or if someone else turns the hot tap on whilst you’re in the shower!

The dimensions of this boiler are 763mm x 450mm x 345mm and it has a minimalist and sleek finish.

It has a gloss white outer shell and the control panel is discreetly covered by a fold-down cover.

Baxi Platinum 40kw Boiler (82.18% HomeSage score)

The Baxi Platinum 40kw is the highest output in the Platinum range and it comes with a free 10-year warranty for extra peace of mind.

This is a boiler designed to last and is built using high-quality brass components in the UK Baxi factory.

It measures 780mm x 450mm x 345mm, it’s finished with the Platinum style chrome trim, and the intricate boiler technology is housed in a durable white gloss shell.

These boilers give exceptional hot water power in larger properties. 

Baxi Duo-tec 40kw Boiler (89.66% HomeSage score)

Baxi Duo-tec boilers are popular with homeowners and installers alike due to their easy-to-install design.

This boiler has dimensions of 780mm x 450mm x 345mm and features the classic design of the chrome trim and hidden display panel for minimal aesthetic disruption. 

This boiler is an Energy Saving Trust endorsed product so you can be sure it is efficient and that it will save you money on your heating bills.

It also features a built-in thermostat so your installer can fit in a garage or loft if required.

Save up to 54% on your new gas combi boiler

You can save up to 54% of the cost of the supply and the installation of your new boiler by leaving your details with us at any of the forms on this page.

We will contact three or four local, trusted and Gas Safe regulated engineers with your query who will get in touch with you for a free quote and relevant advice.

Our service is completely free for you and it is no obligation – there is no pressure to accept any of the offers from our partner installers if you decide not to go ahead.

Still unsure of what type of boiler, from what manufacturer, is best for you? Why not check out our other post on the best boilers in 2021 or the HomeSage Advice Hub for more info!