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Firebird Heatpac S 90-120 Oil - 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.

Firebird Heatpac S 90-120 Efficiency

SAP seasonal efficiency85.7%
Rating bandBand C


ManufacturerFirebird Boilers
ModelHeatpac S 90-120
Fuel TypeOil
Flue TypeOpen
FanNo Fan
Output (kW)26.38 - 35.17
Boiler ID
Manufactured From/ToUnknown - current


The Firebird Heatpac S 90-120 is a 'C' rated boiler with an efficiency of 85.7%.

The Heatpac S 90-120 is a Non-Condensing Conventional boiler with a maximum power output of 35.17kw that uses Oil as its fuel source.

Although a 'C' rated boiler is not as efficient as many other modern boilers it's still pretty good, only a marginal reduction in fuel bills and carbon dioxide emissions would be observed by replacing it.

Similar Firebird Boilers to the Heatpac S 90-120
(Non-Condensing Oil Conventional)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Conventional Oil Boilers