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Glow-worm BBU 54/4 Miami 4 Gas - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can check your boilers rating by selecting it's make and model below. Ratings are based on the SEDBUK Rating which is an indicator of its efficiency when used within an average domestic household, it's a great benchmark for comparing new boilers and also assessing whether your current boiler would be better off being replaced due to low efficiencies.

For new boiler installations call British Gas Boilers on 0800 327 7119 for a no-obligation quote, alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Glow-worm BBU 54/4 Miami 4 Efficiency

SAP seasonal efficiency78.8%
Rating bandBand D


ManufacturerGlow-worm Boilers
ModelBBU 54/4 Miami 4
Fuel TypeGas
Flue TypeOpen
FanNo Fan
Output (kW)13.19 - 15.83
Boiler ID44 047 05
Manufactured From/To2001 - current


The Glow-worm BBU 54/4 Miami 4 is a 'D' rated boiler with an efficiency of 78.8%.

The BBU 54/4 Miami 4 is a Non-Condensing Conventional boiler with a maximum power output of 15.83kw 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.

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