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Glow-worm 56/2 BBU Gas - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can find out the energy efficiency of your boiler by checking its energy rating; you can do this now by selecting the make and model below.

A boiler’s energy rating is an indicator of its efficiency when used within an average domestic household. It's a great benchmark for comparing new boilers and can help you work out how much money you could save on energy bills if you replaced your current boiler with a more efficient model.

For new boiler installations call British Gas Boilers on 0333 230 5216 for a no-obligation quote. Alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Glow-worm 56/2 BBU Efficiency

SAP seasonal efficiency68.1%
Rating bandBand G


ManufacturerGlow-worm Boilers
Model56/2 BBU
Fuel TypeGas
Flue TypeOpen
FanNo Fan
Output (kW)13.8 - 16.5
Boiler ID44 315 40
Manufactured From/To1997 - 2002


The Glow-worm 56/2 BBU is a 'G' rated boiler with a very poor efficiency of 68.1%.

The 56/2 BBU is a Non-Condensing Conventional boiler with a maximum power output of 16.5kw that uses Gas as its fuel source.

Being a 'G' rated boiler it would be worthwhile replacing it with a higher efficiency 'A' rated boiler.

Similar Glow-worm Boilers to the 56/2 BBU
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

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