Baxi Platinum Combi Boiler – Review, Price & Alternatives

We’re reviewing the Baxi Platinum–a combi boiler that’s been getting a lot of attention recently for one reason; warranty.

Baxi Platinum Combi BoilerFact: even the best boilers break.

When they do, homeowners want the peace of mind that they are going to be fixed with little or no expense. The Baxi Platinum gives homeowners exactly that, with a whopping 10-year warranty.

And, with prices a little below that of the equivalent Worcester combis, it represents excellent value for money.

Here’s all you should know about the Baxi Platinum Boiler, our quick review, more on prices, and what alternatives you have.

Baxi Platinum Review

There’s no doubt that most people naturally gravitate towards a Worcester when looking for a new boiler. But, why? Brands such as Baxi, Ideal and Vaillant all offer products of similar quality and either with higher warranties, or a lower price.

Baxi Platinum Price

A typical Baxi Platinum combi installation is going to be around £200 less than the equivalent Worcester. This assumes that the installation cost includes materials such as flue, flue extensions, controls and a system filter.

Well, that was the case until boiler installation company, Heatable launched. You can now get a Worcester installed for a similar price if not cheaper, using their online form.

Or, if you’d prefer a Baxi Platinum, you can get quotes from up to 3 installers here.

Baxi Platinum 24kw£850
Baxi Platinum 28kw£975
Baxi Platinum 33kw£1,075
Baxi Platinum 40kw£1,250

Looking for something a little cheaper? There are plenty of other combi boilers available in their range. In fact, they’ve just released a new combi, the Baxi 600.

For smaller properties, there’s the Baxi 624. And for those with average hot water and heating demand, you’ll be looking towards the more powerful Baxi 630.

Better still, the 600 is a compact boiler with a long warranty.

We’ve written a quick guide to the Baxi 600 compact here.

Baxi Platinum Reviews

Like buying any product, online reviews are always an interesting read. Although there aren’t a tonne of places to find reviews on the Baxi Platinum combi, there are some.

And, one place worth a mention, is Reevoo. There are over 300 reviews for the Baxi Platinum combi boiler, giving it at average score of 9.2/10, at time of writing.

You can go and check out the reviews on Reevoo here.

Baxi Platinum Boiler Size

There’s one big question we are asked; will it fit in a kitchen cupboard? And, the answer is no.

Baxi designed the Platinum HE combi with output in mind, and not size. The dimensions mean it’s just slightly too big. As we’ve mentioned above, if you want a 24kw/30kw compact boiler, and want one from the Baxi brand, then you’ll be looking towards the Baxi 624 and 630.

Baxi Platinum Flow Rate

Baxi have made sure the Platinum range really stands out. Not only are they excellent value for money, they are extremely powerful. The larger 33kw and 40kw boilers have a 0.5L higher flow rate than the equivlent Worcester.

ModelHeating OutputHot Water OutputFlow Rate (lpm)
Platinum 24HE24kw24kw9.8
Platinum 28HE24kw28kw11.5
Platinum 33HE28kw33kw13.5
Platinum 40HE32kw40kw16.4

Baxi Platinum Warranty

As we’ve already mentioned, the Baxi Platinum comes with an impressive 10-year warranty. The terms and conditions of the warranty can be found here.

We mention on most our boiler reviews; avoid cheap boilers with a 2-year warranty. Typically, we’d advise heading for a boiler that has a warranty in excess of 5-years. And in that respect, the Baxi Platinum warranty blows the majority of other boilers out of the water.

At the end of the day, if a boiler manufacturer thinks there’s a high probability of boiler repairs being needed after 2-years, that’s the warranty they’ll give. And after spending thousands on boiler installation, the last thing you want is to be forking out for repairs, just 24 months down the line.

Remember, like most boiler manufacturers, Baxi stipulate that the boiler be serviced annually by a Gas Safe engineer.

Suitable Property Size

Platinum 24kw CombiSmaller properties with 5-6 radiators and 1 bathroom
Platinum 28kw CombiSmall properties with 5-8 radiators and 1 bathroom
Platinum 33kw CombiMid-range properties with 3-4 bedrooms and up to 10 radiators
Platinum 40kw CombiLarge properties with up to 15 radiators and the ability to power 2 showers at once

It’s worth noting that this table is simply a guideline. Different properties have different heating and hot water demands. You can use this clickable form to determine which boiler you need for your property.


Like most new boilers from leading brands, the Platinum combi is incredibly efficient. This ERP A-rated boiler works at over 90% efficiency.

And that’s important. New rules related to Boiler Plus mean that boilers need to be this efficient (for new installs, old boilers don’t need to comply).

Given it’s high efficiency, it’s not just compliant with Boiler Plus, it’s also endorsed by the Energy Saving Trust, and you can see that endorsement here.

What kind of fuel does your boiler use?

Grab your fixed price online by 3PM, and get next-day boiler installation.

Worcester boilers installed from as little as £1,795.

Baxi Platinum Alternatives

If you’re looking for a compact boiler as an alternative, and one from Baxi, you’ll want to go and check out the Baxi 600.

Naturally, Worcester have a full line-up of boilers that rival the Platinum combi.

As a quick guide, the Worcester 25I would be a suitable alternative to the 24kw Platinum, and the 30I an alternative to the 28kw Platinum. You can get online prices for both via Heatable.

HEATABLE Worcester Bosch Greenstar i 30kW

An option many people are considering is the Ideal Vogue. We’ve covered the Ideal Vogue in detail here. This is really something of personal preference, as they both have 10-year warranties and the price is similar too. For instance, a C40 Vogue and a 40kw Platinum are both around the £1,200 mark.

If you’re looking for a cheaper alternative, still with a good warranty, it’s worth considering the Baxi Duo Tec and Ideal Logic Plus. Both boilers weigh in with a decent warranty of 7 years. More importantly, they are over £250 cheaper from most plumbing merchants.

Baxi Platinum Review Verdict

In terms of boilers with a 10-year warranty, there’s nothing in it between the Ideal Vogue and the Baxi Platinum.

For those that are looking for something a little cheaper and don’t see the 3-year extra warranty being worth £250, the Ideal Logic Plus and Baxi Duo Tec are certainly where I’d be focusing my attention.

You can get exact quotes from up to 3 installers here. That’s for a Baxi Platinum. If you’d prefer a Worcester at a similar price, get your price with Heatable.

Hopefully, this review has given an overview of the Platinum combi, but also some of the alternatives out there as well.

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