Boiler Efficiency Ratings


Compare new boilers and assess whether your current boiler would be better off being replaced

Our boiler efficiency tables provided by SEDBUK (the seasonal efficiency of domestic boilers in the UK) provide a guide of how effective your boiler is at turning fuel into heat.

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 0333 230 5216 for a no-obligation quote, alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

VIEWING DETAILS ABOUT

Glow-worm

Fuelsaver 100F Efficiency

SAP seasonal efficiency

72%

Rating band

Unknown

Specification

ManufacturerGlow-worm Boilers
ModelFuelsaver 100F
Fuel TypeGas
TypeConventional
MethodNon-Condensing
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)29.3 - 29.3
Boiler ID4131332
Manufactured From/ToUnknown - obsolete

Summary

The Glow-worm Fuelsaver 100F is unrated, this probably means it's obsolete or very old.

The Fuelsaver 100F is a Non-Condensing Conventional boiler with a maximum power output of 29.3kw that uses Gas as its fuel source.

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

SEDBUK Rating

Similar Glow-worm Boilers to the Fuelsaver 100F
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

Glow-worm 30 si

79.7% Efficient

Glow-worm Ultimate 30FF

79.7% Efficient

Most Efficient Conventional Gas Boilers

Baxi Solo 15 HE A

91.3% Efficient

Main 15 HE A

91.3% Efficient

Potterton Promax SL 15

91.3% Efficient

Potterton Gold H 15

91.3% Efficient