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

Worcester

Heatslave highflow4.5of Efficiency

SAP seasonal efficiency

65%

Rating band

Unknown

Specification

ManufacturerWorcester Boilers
ModelHeatslave highflow4.5of
Fuel TypeGas
TypeConventional
MethodNon-Condensing
Flue TypeOpen
FanNo Fan
Output (kW)22.9 - 22.9
Boiler ID4131141
Manufactured From/ToUnknown - 1993

Summary

The Worcester Heatslave highflow4.5of is unrated, this probably means it's obsolete or very old.

The Heatslave highflow4.5of is a Non-Condensing Conventional boiler with a maximum power output of 22.9kw that uses Gas as its fuel source.

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

SEDBUK Rating

Similar Worcester Boilers to the Heatslave highflow4.5of
(Non-Condensing Gas Conventional)

Results ordered by efficiency. Some models may be obsolete.

Worcester 14/19 CBi RSF

79.4% Efficient

Worcester 15 Sbi RSF

79.1% Efficient

Worcester 9/14 CBi RSF

78.5% Efficient

Worcester 19/24 CBi RSF

78.4% 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