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Baxi EcoBlue Advance Heat

The Baxi EcoBlue Heat Advance is an excellent choice for homeowners looking to replace an old inefficient conventional boiler.

Baxi’s EcoBlue Advance Heat is known for being one of the lightest boilers in the UK, weighing in at just under 20kg. It’s also extremely compact and can be installed pretty much anywhere in a small, medium or large home, including inside a kitchen cupboard. If you’re looking for a conventional boiler that is A-rated for efficiency and has a lengthy warranty, the EcoBlue Advance Heat could be right up your street.

How Much Does this Boiler Cost?

EcoBlue Advance Heat prices vary according to the boiler output and typically range between £770 and £985 including VAT. The boiler comes in six outputs of 13kW, 16kW, 19kW, 21kW, 25kW and 30kW, with the highest output being the most powerful and expensive. You will need to factor in the cost of installation as well, which can vary greatly depending on how much work is required to fit the boiler. If you want to find the best price on the boiler and the installation, you’ll need to shop around and compare quotes.

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

No matter which heat output you choose, the EcoBlue Advance Heat must be installed with a cold water tank and a hot water storage cylinder because it’s a conventional boiler (also known as a traditional, regular or heat only boiler). If you have more than one bathroom or tend to use a lot of hot water at once, a conventional boiler will be capable of meeting your demands. These types of boilers are also ideal for properties where mains water pressure is not at its best.

Since it’s extremely important that you choose the right type and size of boiler for your property, you must consult a Gas Safe registered engineer prior to replacing your boiler with the EcoBlue Advance Heat. A qualified heating professional will need to assess your home and requirements before recommending a suitable boiler model and kW output.

Is it a High Efficiency Boiler?

It is. The Baxi EcoBlue Advance Heat achieves 89.2% efficiency and is A-rated as a result. What does this mean for you if you purchase the boiler? Well, you’ll not only cut your fuels bills but also reduce your carbon footprint. This boiler also happens to be endorsed by the Energy Saving Trust, an organisation that helps people save energy. Furthermore, it’s compatible with Megaflo Eco Cylinders that help to maximise energy efficiency and improve hot water performance.

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

User controls include a reset and operating mode selector switch, as well as an adjustable central heating temperature control. The EcoBlue Advance Heat also features a clear LED status and fault diagnosis display that lets you know the operating status and alerts you if and when certain boiler problems appear. This boiler comes with a choice of flue lengths, along with a top and in case rear flue for ease of installation and to provide flexible siting options. It also has front and side access to all of the internal parts to make installation and servicing straightforward.

How long is the Warranty on this Boiler?

If you go on to purchase the Baxi EcoBlue Advance Heat, you’ll receive a 7-year parts and labour warranty as standard. To keep the warranty valid, you’ll need to get a Gas Safe registered engineer to carry out a service each year.

Baxi EcoBlue Advance Heat

ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
EcoBlue Advance Heat 13Heat OnlyH – 625 mm
W – 370 mm
D – 270 mm
N/A13 kWA 90% and above£770
EcoBlue Advance Heat 16Heat OnlyH – 625 mm
W – 370 mm
D – 270 mm
N/A16 kWA 90% and above£800
EcoBlue Advance Heat 19Heat OnlyH – 625 mm
W – 370 mm
D – 270 mm
N/A19 kWA 90% and above£820
EcoBlue Advance Heat 19Heat OnlyH – 625 mm
W – 370 mm
D – 270 mm
N/A19 kWA 90% and above£820
EcoBlue Advance Heat 21Heat OnlyH – 625 mm
W – 370 mm
D – 270 mm
N/A21 kWA 90% and above£870
EcoBlue Advance Heat 25Heat OnlyH – 625 mm
W – 370 mm
D – 270 mm
N/A25 kWA 90% and above£900
EcoBlue Advance Heat 30Heat OnlyH – 625 mm
W – 370 mm
D – 270 mm
N/A30 kWA 90% and above£985

Summary of Important Information

  • Priced between £770 and £985
  • Heating output of 13kW, 16kW, 19kW, 21kW, 25kW or 30kW
  • Dimensions of 625mm (H) x 370mm (W) x 270mm (D)
  • Uses gas as its fuel source
  • A-rated for efficiency
  • Megaflo Eco Cylinder compatible
  • 7-year warranty as standard

Pros and Cons

The Baxi EcoBlue Advance Heat has many more positives than negatives but it might not be the best option if you’re looking to make the most of your small-space situation. Below, we’ve put together a list of pros and cons to help you better understand what this boiler has to offer.


  • 9.2 out of 10 rating on Reevoo – based on reviews from verified customers
  • Fits in a 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 and loft tanks
  • User controls are basic
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