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Vaillant ecoTEC plus 637 LPG - 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 ecoTEC plus 637 Efficiency

SAP seasonal efficiency92.3%
Rating bandBand A


ManufacturerVaillant Boilers
ModelecoTEC plus 637
Fuel TypeLPG
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)37.0 - 37.0
Boiler ID
Manufactured From/To2007 - current


The Vaillant ecoTEC plus 637 is an 'A' rated boiler which has an excellent efficiency of 92.3%.

The ecoTEC plus 637 is a Condensing Conventional boiler with a maximum power output of 37.0kw that uses LPG as its fuel source.

As this boiler is 'A' rated it will provide efficient heating and subsequently reduce fuel bills and carbon dioxide emissions.

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