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


Get Free, No Obligation Boiler Quotes

Fonderie Sime Format System 35TS 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.

Fonderie Sime Format System 35TS Efficiency

SAP seasonal efficiency80.4%
Rating bandBand D


ManufacturerFonderie Sime Boilers
ModelFormat System 35TS
Fuel TypeGas
Flue TypeOpen or Room-Sealed
FanFan Assisted
Output (kW)32.4 - 32.4
Boiler ID
Manufactured From/To2006 - current


The Fonderie Sime Format System 35TS is a 'D' rated boiler with an efficiency of 80.4%.

The Format System 35TS is a Non-Condensing Conventional boiler with a maximum power output of 32.4kw 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 Fonderie Sime Boilers to the Format System 35TS
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Conventional Gas Boilers