Boiler Efficiency Ratings


Compare new boilers and assess whether your current boiler would be better off being replaced

Our boiler efficiency tables provided by SEDBUK (the seasonal efficiency of domestic boilers in the UK) provide a guide of how effective your boiler is at turning fuel into heat.

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 0333 230 5216 for a no-obligation quote, alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

VIEWING DETAILS ABOUT

Halstead

Best 40 Efficiency

SAP seasonal efficiency

75.6%

Rating band

Band E

Specification

ManufacturerHalstead Boilers
ModelBest 40
Fuel TypeGas
TypeConventional
MethodNon-Condensing
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)8.79 - 11.72
Boiler IDGC No41-333-51
Manufactured From/ToUnknown - 2001

Summary

The Halstead Best 40 is an 'E' rated boiler with an efficiency of 75.6%.

The Best 40 is a Non-Condensing Conventional boiler with a maximum power output of 11.72kw that uses Gas as its fuel source.

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

SEDBUK Rating

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

Results ordered by efficiency. Some models may be obsolete.

Halstead Wickes LW 60 ci

79.2% Efficient

Halstead Best 60 db

79.2% Efficient

Halstead Hero 30

79.2% Efficient

Halstead Hero 60

79.1% Efficient

Most Efficient Conventional Gas Boilers

Baxi Solo 15 HE A

91.3% Efficient

Main 15 HE A

91.3% Efficient

Potterton Promax SL 15

91.3% Efficient

Potterton Gold H 15

91.3% Efficient