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Main 18 HE 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.

Main 18 HE Efficiency

SAP seasonal efficiency86.2%
Rating bandBand B


ManufacturerMain Boilers
Model18 HE
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)17.72 - 17.72
Boiler IDGC No. 41-474-04
Manufactured From/To2005 - 2011


The Main 18 HE is a 'B' rated boiler which has good efficiency of 86.2%.

The 18 HE is a Condensing Conventional boiler with a maximum power output of 17.72kw that uses Gas as its fuel source.

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

Similar Main Boilers to the 18 HE
(Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Conventional Gas Boilers