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Glow-worm Compact 100 System A 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.

Glow-worm Compact 100 System A Efficiency

SAP seasonal efficiency79.3%
Rating bandBand D


ManufacturerGlow-worm Boilers
ModelCompact 100 System A
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)28.2 - 28.2
Boiler IDGC 41 047 26
Manufactured From/To1999 - 2003


The Glow-worm Compact 100 System A is a 'D' rated boiler with an efficiency of 79.3%.

The Compact 100 System A is a Non-Condensing Conventional boiler with a maximum power output of 28.2kw that uses Gas as its fuel source.

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

Similar Glow-worm Boilers to the Compact 100 System A
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

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