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Dimplex System 18 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.

Dimplex System 18 Efficiency

SAP seasonal efficiency91.1%
Rating bandBand A


ManufacturerDimplex Boilers
ModelSystem 18
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)18.1 - 18.1
Boiler IDGC No. 41-149-02
Manufactured From/To2008 - current


The Dimplex System 18 is an 'A' rated boiler which has an excellent efficiency of 91.1%.

The System 18 is a Condensing Conventional boiler with a maximum power output of 18.1kw that uses Gas as its fuel source.

As this boiler is 'A' rated it will provide efficient heating and subsequently reduce fuel bills and carbon dioxide emissions.

Similar Dimplex Boilers to the System 18
(Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

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