The smarter way to replace your boiler

  • Get FREE Quotes today
  • Compare quotes & save money
  • Over 5,000 engineers across the UK
Tell us about your job
Get Free Quotes

Baxi EcoBlue Advance Combi

The Baxi EcoBlue Advance Combi is a modern and reliable condensing gas boiler with an impressive 10-year warranty.

Baxi’s EcoBlue Advance Combi is popular among homeowners and heating engineers because it’s a top performer and A-rated for energy efficiency. It comes in a range of heat outputs up to 40kW, making it a great option for homes of all shapes and sizes as well. Not only that, but this combi boiler is backed by a fantastic free warranty to provide peace of mind should anything go wrong in the first 10 years of ownership.

How Much Does this Boiler Cost?

There are four heat outputs available in the Baxi EcoBlue Advance Combi series, including 24kW, 28kW, 33kW and 40kW. Prices range between £900 and £1250 including VAT, so the amount you’ll need to spend will depend on the required boiler output. Don’t forget, prices also vary from one supplier to another and you need to factor in the cost of installation too. One of the best ways to save a bit of money on this boiler and the fitting work is to shop around and compare quotes from different suppliers and installers.

How will I know if this Boiler is Suitable for My Home?

The Baxi EcoBlue Advance Combi is a combi boiler (or combination boiler) and, like all combi models, it does not need to be installed with tanks in the loft or a hot water storage cylinder in the airing cupboard. As combi boilers tend to struggle to keep up with two showers running at the same time, they aren’t usually suitable for homes with multiple bathrooms or where a lot of taps are used simultaneously. But this boiler is slightly different because it is available in higher heat outputs and with fantastic hot water flow rates.

We recommend you choose a Gas Safe registered engineer to assess your home and requirements before you go out and purchase this boiler. The last thing you want to do is select a boiler that is too big or too small for your property, as this means your boiler will use more fuel than is needed (and increase your energy bills) or won’t be capable of meeting your demands. Your chosen qualified heating engineer will be able to tell you which output and flow rate is correct for your home.

Is it a High Efficiency Boiler?

It is indeed. The EcoBlue Advance Combi by Baxi is an A-rated condensing boiler with an official rating of 91.1%. No matter which boiler output is required to sufficiently heat your home and supply plenty of hot water to your taps, each model has the same rating and will save you money on your energy bills. Efficiency levels can be improved because the boiler is compatible with a range of optional controls, including the uSense smart room thermostat that enables you to control your heating and hot water from a smartphone or tablet. If all that wasn’t enough to convince you, the boiler is also Energy Saving Trust recommended.

Does this Boiler have a Good Range of Controls and Features?

All of the controls are concealed to prevent them from being knocked or touch by little fingers, making the EcoBlue Advance Combi a great option if you have young children living in your house. There’s an LCD fault diagnosis display that lets you see the boiler status and temperature, as well as controls that allow you to adjust the temperature of your heating and hot water. Optional controls include mechanical timers, RF thermostats, wired outdoor weather sensors and the smart uSense room thermostat that we mentioned above. Plus, the boiler has a full wall-mounting jig, a choice of flue lengths and front access to all internal parts to ensure hassle-free installation and servicing.

How long is the Warranty on this Boiler?

This boiler comes with a fantastic 10-year parts and labour warranty as standard to offer peace of mind that any faults or breakdowns will be put right. You must make sure the Baxi EcoBlue Advance is serviced by a Gas Safe registered engineer each year in order to keep the warranty valid.

Baxi EcoBlue Advance Combi By Size and Price


ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
EcoBlue Advance Combi 24CombiH – 763 mm
W – 450 mm
D – 345 mm
16.4 l/min24 kWA 90% and above£900
EcoBlue Advance Combi 28CombiH – 763 mm
W – 450 mm
D – 345 mm
16.4 l/min28 kWA 90% and above£950
EcoBlue Advance Combi 33CombiH – 763 mm
W – 450 mm
D – 345 mm
16.4 l/min33 kWA 90% and above£1050
EcoBlue Advance Combi 40CombiH – 763 mm
W – 450 mm
D – 345 mm
16.4 l/min40 kWA 90% and above£1250

Summary of Important Information

  • Priced between £900 and £1250
  • Heating output of 24kW, 28kW, 33kW or 40kW
  • Hot water flow rates of 9.8, 11.5, 13.5 or 16.4 litres per minute
  • Dimensions of 763mm (H) x 450mm (W) x 345mm (D)
  • Uses gas as its fuel source
  • A-rated for efficiency
  • Smart compatible
  • 10-year warranty as standard

Pros and Cons

Putting aside the fact that Baxi has an average Which? score of 54%, the EcoBlue Advance Combi is still a great choice for virtually any home. If you want to find out the main pros and cons of this boiler, just look below.


  • 9.2 out of 10 rating on Reevoo – based on reviews from verified customers
  • Suited to small, medium and large-sized homes
  • No need for separate cylinder or loft tanks
  • Easy to use and service
  • NOx Class 5 boiler – kinder to the environment
  • Provides maximum energy efficiency – reduce fuel bills and carbon emissions
  • Compatible with uSense smart room thermostat – can monitor your energy use and control your heating using a smartphone or tablet, wherever you happen to be
  • 10-year parts and labour warranty


  • Baxi boilers have and overall Which? score of 54%
Get Baxi Boiler Quotes

Get quotes to supply a new Baxi boiler now