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Ideal Concord CXS40 Gas - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can find out the energy efficiency of your boiler by checking its energy rating; you can do this now by selecting the make and model below.

A boiler’s energy rating is an indicator of its efficiency when used within an average domestic household. It's a great benchmark for comparing new boilers and can help you work out how much money you could save on energy bills if you replaced your current boiler with a more efficient model.

For new boiler installations call British Gas Boilers on 0333 230 5216 for a no-obligation quote. Alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Ideal Concord CXS40 Efficiency

SAP seasonal efficiency76.2%
Rating bandBand E


ManufacturerIdeal Boilers
ModelConcord CXS40
Fuel TypeGas
Flue TypeOpen
FanNo Fan
Output (kW)42.0 - 42.0
Boiler IDP.I.No 87/AQ/103
Manufactured From/ToUnknown - 2002


The Ideal Concord CXS40 is an 'E' rated boiler with an efficiency of 76.2%.

The Concord CXS40 is a Non-Condensing Conventional boiler with a maximum power output of 42.0kw 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 Ideal Boilers to the Concord CXS40
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Conventional Gas Boilers