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Baxi EcoBlue System

The Baxi EcoBlue System is available in various outputs to suit most properties including those with high heating and hot water demands.

This condensing gas system boiler by Baxi can be sited in a kitchen cupboard and is designed to suit small, medium and large homes across the UK. Although already A-rated for efficiency, this boiler can be used with a range of optional controls and accessories to not only maximise comfort and performance levels but also energy savings. It also comes with a decent warranty that will protect you from unexpected repairs bills in case the boiler develops any faults within the first 7 years.

How Much Does this Boiler Cost?

Because the Baxi EcoBlue System can be supplied in an output of 12kW, 15kW, 18kW, 24kW, 28kW or 32kW, it has a price tag that ranges from £910 to £1,130 including VAT. If you have high heating and hot water demands, you’re likely to need one of the higher output options, which tend to cost more than the lower kW models. Seeing as you need to also factor in the fitting costs, we suggest you shop around so that you can find the best price on the boiler and installation.

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

The Baxi EcoBlue System is a system boiler that uses natural gas as its fuel source. All system boilers have to be installed with a separate cylinder that stores the hot water, so you’ll need to find space (usually in the airing cupboard) to house this additional and essential component. If you have multiple bathrooms or need a boiler that can supply hot water to most or all of your taps at the same time, a system boiler could be the most suitable option for your property.

To know for sure if the EcoBlue System is a good choice for your home, you’ll need to consult a Gas Safe registered engineer. In addition to being able to tell you whether it’s the right type of boiler to satisfy your heating and hot water needs, a qualified engineer can work out which size (kW output) is best for your property.

Is it a High Efficiency Boiler?

Baxi’s EcoBlue System has an efficiency rating of 89.1%, making it an A-rated condensing boiler. Additionally, it can be used with a Megaflo Eco Cylinder that promises to improve the boiler’s efficiency and performance. The best thing about moving to a new boiler with an A rating is that it can lower your energy bills and reduce your carbon footprint along the way. This Baxi boiler is also recommended by the Energy Saving Trust, which is a trusted organisation that helps people to reduce energy consumption in order to change the energy landscape for the better.

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

The user controls are situated at the front of the boiler but they are hidden behind a panel to ensure the Baxi EcoBlue System looks tidy and sleek wherever it’s placed. Concealed controls include a reset button, system pressure gauge and a switch that allows you to adjust the central heating temperature. There’s also an LCD status and temperature display that lets you know of any faults that may arise. Plus, you can choose from a selection of optional controls, such as a room thermostat, a twin channel wired programmer or an outdoor weather sensor. On top of all of that, the boiler has an inbuilt frost thermostat and comes with different flue lengths and a full wall-mounting jig.

How long is the Warranty on this Boiler?

If you decide to buy the EcoBlue System by Baxi, you’ll get a 7-year parts and labour warranty as standard. Certain conditions must be met to keep this warranty valid. For example, your installer must be Gas Safe registered and the boiler has to be serviced annually.

Baxi EcoBlue System By Size and Price


ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
EcoBlue System 12SystemH – 700 mm
W – 390 mm
D – 295 mm
N/A12 kWA 90% and above£910
EcoBlue System 18SystemH – 700 mm
W – 300 mm
D – 295 mm
N/A18 kWA 90% and above£990
EcoBlue System 24SystemH – 700 mm
W – 390 mm
D – 295 mm
N/A24 kWA 90% and above£1050
EcoBlue System 28SystemH – 700 mm
W – 390 mm
D – 295 mm
N/A28 kWA 90% and above£1100
EcoBlue System 32SystemH – 700 mm
W – 390 mm
D – 295 mm
N/A32 kWA 90% and above£1130

Summary of Important Information

  • Priced between £910 to £1,130
  • Heating output of 12kW, 15kW, 18kW, 24kW, 28kW or 32kW
  • Dimensions of 700mm (H) x 390mm (W) x 295mm (D)
  • Uses gas as its fuel source
  • A-rated for efficiency
  • Megaflo Eco Cylinder compatible
  • 7-year warranty as standard

Pros and Cons

Bearing in mind that the Baxi EcoBlue System is good value, has an A efficiency rating and is backed by a 7-year warranty out of the box, it certainly has some impressive plus points. Take a look below to find out all the pros and cons of this quality boiler.


  • 8.7 out of 10 rating on Reevoo – based on reviews from verified customers
  • Fits in a 300mm deep kitchen cupboard
  • Suited to small, medium and large-sized homes
  • Easy to use and service
  • Comes with a choice of flue lengths – can be installed virtually anywhere
  • NOx Class 5 boiler – kinder to the environment
  • Provides maximum energy efficiency – reduce fuel bills and carbon emissions
  • Compatible with Megaflo Eco Cylinders – increases energy efficiency and improves comfort levels and hot water performance
  • 7-year warranty


  • Baxi boilers have and overall Which? score of 54%
  • Requires separate cylinder
  • User controls are basic
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