Baxi Bermuda BBU HE boiler

The Baxi Bermuda BBU HE is a high efficiency heat only boiler.  It offers the easiest way to replace an existing back boiler. It is the only high efficiency back boiler to act as a direct replacement - meaning no complicated changes to pipework and no major redecoration required after the installation.

The Baxi Bermuda BBU HE is an Energy Saving Trust endorsed product.  It complies with all legislative and Building Regulations.

Please note: warranty and purchasing information on this site applies to the UK only. For information on how to buy these products in the Republic of Ireland, please visit Baxi Potterton Myson.


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Back boilers provide heating and hot water without taking up any valuable living space. Tucked away neatly behind the fireplace, they actually create space in the home that would otherwise be given up to a wall-hung boiler.

Despite its compact size, a back boiler is more than capable of fulfilling all heating and hot water needs. It heats the water in a hot water storage cylinder, like the Megaflo Eco which means you can run hot water from several taps at once without loss of pressure.

  • Replacing an old inefficient model with a high efficiency Baxi Bermuda BBU HE will save money on energy bills and reduce carbon emissions
  • Complies with current Building Regulations
  • The only like-for-like direct back boiler replacement in the UK
  • 2 year warranty*
  • No need to re-site the boiler and modify the pipework and no major disruption or redecoration
  • No loss of valuable kitchen cupboard space installing a wall hung boiler
  • 15kW heat output; modulating boiler adapts to heat demand ensuring optimum performance at all times
  • Room sealed appliance; eliminating the need for air vents in the room
  • Built in condensate pump and no pump overrun required, to ease installation
  • Factory set to enable easy boiler commissioning
  • Single piece flexible concentric flue; eliminating the need to provide flue inspection access
  • Quiet in operation

*Subject to registration and an annual service

Bermuda BBUA: Boiler width = 430mm

B: Boiler height = 550mm

C: Boiler depth = 330mm

With simple operating instructions, you won't need many accessories to get your Baxi Bermuda BBU working straight away. To consult with a Gas Safe registered installer for information on this, please use our 'Find an installer' tool.

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Your BBU questions answered

Q. Who can install the new Baxi Bermuda back boiler?

A. Installation work should only be carried out by a Gas Safe registered installer. You can find a local, registered installer here.

Q. How long does it take to install the back boiler and fire?

A. In our experience, the Baxi Bermuda BBU HE and fire front can both be installed within a single day. Your installer will be able to advise more specifically on timescales.

Q. How do I control the back boiler unit?

A. Simple boiler controls are discreetly situated on the left hand side of the fire frame. So while they are easy to reach, they won't detract from the stylish look of your fire.

Q. Why install the new Baxi Bermuda if my old one still works?

A. The new Baxi Bermuda BBU HE is considerably more efficient than older versions - meaning it turns more of the gas it uses into useable heat, which means less wasted energy and significantly lower heating bills.

Q. Can I use the new back boiler with my existing gas fire?

A. When the boiler is fitted, the open flue is replaced with the single piece concentric flue - so there is no way for the combustion gases to escape. Electric fires bring their own benefits though. They are 100% efficient at the point of use and provide usable heat as soon as they are switched on. Gas fires, on the other hand, need to heat the flue before they become effective, which can take more than 20 minutes.

The Bermuda Back Boiler has product literature available for both homeowners and installers. To learn more about the product's great features, or find out about the installation process, read one of our guides.

  • HE A range guide (PDF 4.98MB, 09/10/2014)
  • BBU HE installation instructions (PDF 6.44MB, 09/10/2014)
  • Find an installer or find a boilerWe have Gas Safe Registered installers all over the UK who will be able to give you a quote for the installation of your new boiler. To use our handy find an installer tool, simply enter a few details and we'll do all the hard work for you by contacting them on your behalf.

    The installer will get in touch to arrange a site survey to give you a competitive, no obligation quote.

    Unsure of what type of boiler you need?

    Try our find a boiler tool. It will ask you a few key questions relating to your heating and hot water requirements and recommend a suitable gas boiler.

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    Brochures & guides

    Download installation instructions, brochures and other documents

    Download documents about the Baxi Bermuda BBU HE, from installation information, to brochures and user guides.