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Halstead Best 40 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.

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Halstead Best 40 Efficiency

SAP seasonal efficiency77.4%
Rating bandBand E


ManufacturerHalstead Boilers
ModelBest 40
Fuel TypeLPG
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)12.15 - 12.15
Boiler IDGC No41-333-54
Manufactured From/ToUnknown - 2002


The Halstead Best 40 is an 'E' rated boiler with an efficiency of 77.4%.

The Best 40 is a Non-Condensing Conventional boiler with a maximum power output of 12.15kw that uses LPG as its fuel source.

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

Similar Halstead Boilers to the Best 40
(Non-Condensing LPG Conventional)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Conventional LPG Boilers