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Alde Slimline 2927 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.

Alde Slimline 2927 Efficiency

SAP seasonal efficiency70%
Rating bandUnknown


ManufacturerAlde Boilers
ModelSlimline 2927
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)5.8 - 5.8
Boiler ID4104801
Manufactured From/To1985 - 1991


The Alde Slimline 2927 is unrated, this probably means it's obsolete or very old.

The Slimline 2927 is a Non-Condensing Combi boiler with a maximum power output of 5.8kw that uses Gas as its fuel source.

Being an Unrated boiler it would be worthwhile replacing it with a higher efficiency 'A' rated boiler.

Most Efficient Combi Gas Boilers