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Glow-worm BBU 45/4 Miami 4 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 BBU 45/4 Miami 4 Efficiency

SAP seasonal efficiency78.4%
Rating bandBand D


ManufacturerGlow-worm Boilers
ModelBBU 45/4 Miami 4
Fuel TypeGas
Flue TypeOpen
FanNo Fan
Output (kW)8.79 - 13.19
Boiler ID44 047 06
Manufactured From/To2001 - current


The Glow-worm BBU 45/4 Miami 4 is a 'D' rated boiler with an efficiency of 78.4%.

The BBU 45/4 Miami 4 is a Non-Condensing Conventional boiler with a maximum power output of 13.19kw that uses Gas as its fuel source.

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

Similar Glow-worm Boilers to the BBU 45/4 Miami 4
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

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