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Worcester Heatslave juniorbf 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.

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Worcester Heatslave juniorbf Efficiency

SAP seasonal efficiency65%
Rating bandUnknown


ManufacturerWorcester Boilers
ModelHeatslave juniorbf
Fuel TypeGas
Flue TypeRoom-Sealed
FanNo Fan
Output (kW)12.3 - 12.3
Boiler ID4131124
Manufactured From/ToUnknown - 1987


The Worcester Heatslave juniorbf is unrated, this probably means it's obsolete or very old.

The Heatslave juniorbf is a Non-Condensing Conventional boiler with a maximum power output of 12.3kw that uses Gas as its fuel source.

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

Similar Worcester Boilers to the Heatslave juniorbf
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

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