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


Get Free, No Obligation Boiler Quotes

Trianco TSB 20/25 BF Sealed System Oil - 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.

Trianco TSB 20/25 BF Sealed System Efficiency

SAP seasonal efficiency70%
Rating bandUnknown


ManufacturerTrianco Boilers
ModelTSB 20/25 BF Sealed System
Fuel TypeOil
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)20 - 25
Boiler ID
Manufactured From/ToUnknown - obsolete


The Trianco TSB 20/25 BF Sealed System is unrated, this probably means it's obsolete or very old.

The TSB 20/25 BF Sealed System is a Non-Condensing Conventional boiler with a maximum power output of 25kw that uses Oil as its fuel source.

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

Similar Trianco Boilers to the TSB 20/25 BF Sealed System
(Non-Condensing Oil Conventional)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Conventional Oil Boilers