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Vaillant T3Wcombi vcw20/1t3w 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.

Vaillant T3Wcombi vcw20/1t3w Efficiency

SAP seasonal efficiency65%
Rating bandUnknown


ManufacturerVaillant Boilers
ModelT3Wcombi vcw20/1t3w
Fuel TypeGas
Flue TypeOpen
FanNo Fan
Output (kW)24 - 24
Boiler ID4704403
Manufactured From/ToUnknown - 1988


The Vaillant T3Wcombi vcw20/1t3w is unrated, this probably means it's obsolete or very old.

The T3Wcombi vcw20/1t3w is a Non-Condensing Combi boiler with a maximum power output of 24kw that uses Gas as its fuel source.

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

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