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Ravenheat RSF 20/20E 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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Ravenheat RSF 20/20E Efficiency

SAP seasonal efficiency77.1%
Rating bandBand E


ManufacturerRavenheat Boilers
ModelRSF 20/20E
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)24.1 - 24.1
Boiler IDGC No. 47 581 07
Manufactured From/To1996 - 2001


The Ravenheat RSF 20/20E is an 'E' rated boiler with an efficiency of 77.1%.

The RSF 20/20E is a Non-Condensing Combi boiler with a maximum power output of 24.1kw that uses Gas as its fuel source.

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

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(Non-Condensing Gas Combi)

Results ordered by efficiency. Some models may be obsolete.

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