News, Views & Reviews on Domestic Central Heating, Boiler & Renewable Energy


Get Free, No Obligation Boiler Quotes

Firebird Sealed System 70-90 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 Sealed System 70-90 Efficiency

SAP seasonal efficiency85.5%
Rating bandBand C


ManufacturerFirebird Boilers
ModelSealed System 70-90
Fuel TypeOil
Flue TypeRoom-Sealed
FanNo Fan
Output (kW)20.52 - 26.38
Boiler ID
Manufactured From/ToUnknown - current


The Firebird Sealed System 70-90 is a 'C' rated boiler with an efficiency of 85.5%.

The Sealed System 70-90 is a Non-Condensing Conventional boiler with a maximum power output of 26.38kw 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 Sealed System 70-90
(Non-Condensing Oil Conventional)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Conventional Oil Boilers