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Saunier Duval System 400 30 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.

Saunier Duval System 400 30 Efficiency

SAP seasonal efficiency68%
Rating bandUnknown


ManufacturerSaunier Duval Boilers
ModelSystem 400 30
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)8.8 - 8.8
Boiler ID4192017
Manufactured From/ToUnknown - obsolete


The Saunier Duval System 400 30 is unrated, this probably means it's obsolete or very old.

The System 400 30 is a Non-Condensing Conventional boiler with a maximum power output of 8.8kw 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 Saunier Duval Boilers to the System 400 30
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

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