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Potterton Myson Suprima 120 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.

Potterton Myson Suprima 120 Efficiency

SAP seasonal efficiency77.8%
Rating bandBand E


ManufacturerPotterton Myson Boilers
ModelSuprima 120
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)23.45 - 35.17
Boiler IDHMT
Manufactured From/To1999 - 2001


The Potterton Myson Suprima 120 is an 'E' rated boiler with an efficiency of 77.8%.

The Suprima 120 is a Non-Condensing Conventional boiler with a maximum power output of 35.17kw 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.

Similar Potterton Myson Boilers to the Suprima 120
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

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