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Vaillant Thermocompact 628E 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 Thermocompact 628E Efficiency

SAP seasonal efficiency81.6%
Rating bandBand D


ManufacturerVaillant Boilers
ModelThermocompact 628E
Fuel TypeLPG
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)28 - 28
Boiler IDVU GB 282-5E
Manufactured From/To2000 - 2010


The Vaillant Thermocompact 628E is a 'D' rated boiler with an efficiency of 81.6%.

The Thermocompact 628E is a Non-Condensing Conventional boiler with a maximum power output of 28kw that uses LPG as its fuel source.

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

Similar Vaillant Boilers to the Thermocompact 628E
(Non-Condensing LPG Conventional)

Results ordered by efficiency. Some models may be obsolete.

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