Worcester - Boiler Efficiency Rating

Compare new boilers and assess whether your current boiler needs to be replaced.

A boiler’s energy rating is an indicator of its efficiency when used within an average domestic household. It’s a great benchmark for comparing new boilers and can help you work out how much money you could save on energy bills if you replaced your current boiler with a more efficient model.

You can find out the energy efficiency of your boiler by checking its energy rating; you can do this now by selecting the make and model below.

How efficient is your boiler?

Select your boiler using the dropdown below to find out.

Worcester Boilers

ModelTypeFuelEfficiency
Worcester14/19 CBiRSFNon-CondensingGas79.4%
Worcester14/19 CBiRSFNon-CondensingLPG81.3%
Worcester15 CBiRSFNon-CondensingGas76.6%
Worcester15 SbiRSFNon-CondensingGas79.1%
Worcester15 SBiRSFNon-CondensingLPG80.9%
Worcester19/24 CBiRSFNon-CondensingGas78.4%
Worcester19/24 CBiRSFNon-CondensingLPG80.4%
Worcester24 CBiRSFNon-CondensingGas76.9%
Worcester24 CdiRSFNon-CondensingGas76.0%
Worcester24 CdiOFNon-CondensingGas76.2%
Worcester24 CdiBFNon-CondensingGas79.4%
Worcester24 CDiRSF-LNon-CondensingGas78.1%
Worcester24 CDiRSF-LNon-CondensingLPG80.5%
Worcester24 CDi - LOFNon-CondensingGas78.1%
Worcester24 CDi - LOFNon-CondensingLPG79.6%
Worcester24 IRSFNon-CondensingGas76.1%
Worcester24 LERSFNon-CondensingGas76.0%
Worcester24 SbiRSFNon-CondensingGas78.3%
Worcester24 SBiRSFNon-CondensingLPG80.1%
Worcester24 SI IIRSFNon-CondensingGas78.1%
Worcester24 SI IIRSFNon-CondensingLPG80.5%
Worcester240CFNon-CondensingGas65%
Worcester240bfNon-CondensingGas65%
Worcester240ofNon-CondensingGas65%
Worcester240rsfNon-CondensingGas70%
Worcester24CDiRSF Serial ASBNon-CondensingGas78.1%
Worcester24CDiRSF Serial ASCNon-CondensingLPG80.5%
Worcester24i - LRSFNon-CondensingGas78.3%
Worcester24i JuniorNon-CondensingGas78%
Worcester24i JuniorNon-CondensingLPG80.0%
Worcester25 SiRSFNon-CondensingGas77.7%
Worcester25 SiRSFNon-CondensingLPG81.1%
Worcester25 Si - LRSFNon-CondensingGas78%
Worcester25 Si - LRSFNon-CondensingLPG81.1%
Worcester25Si - LLRSFNon-CondensingGas78.0%
Worcester25Si - LLRSFNon-CondensingLPG81.1%
Worcester26 CdiXtraCondensingGas85.7%
Worcester26 CDi XtraRSF - LCondensingGas87.1%
Worcester26 CDi XtraRSFCondensingLPG86.8%
Worcester28 CDiRSFNon-CondensingLPG79.9%
Worcester28 CdiRSFNon-CondensingGas78.9%
Worcester28 CDi - LRSFNon-CondensingLPG80.7%
Worcester28 LERSFNon-CondensingGas78.9%
Worcester28 SiRSFNon-CondensingGas78.2%
Worcester28 SiRSFNon-CondensingLPG81.4%
Worcester28 SI IIRSFNon-CondensingGas78.4%
Worcester28 SI IIRSFNon-CondensingLPG80.0%
Worcester280rsfNon-CondensingGas70%
Worcester28iRSFNon-CondensingGas78.0%
Worcester28i JuniorNon-CondensingGas78.9%
Worcester28i JuniorNon-CondensingLPG81.7%
Worcester35 CdiRSFNon-CondensingGas78.9%
Worcester35 CDi IIRSFNon-CondensingGas78.5%
Worcester35 CDi IIRSFNon-CondensingLPG80.4%
Worcester80 icRSFNon-CondensingGas75.2%
Worcester9.24electronicrsfNon-CondensingGas70%
Worcester9.24electronicrsfeNon-CondensingGas70%
Worcester9/14 CBiRSFNon-CondensingGas78.5%
Worcester9/14 CBiRSFNon-CondensingLPG80.5%
WorcesterBosch50/70.000Non-CondensingOil85.5%
WorcesterBosch70/90-000-NI-LNon-CondensingOil85.3%
WorcesterBosch90/110.000Non-CondensingOil85.3%
WorcesterBosch70/90.000Non-CondensingOil84.3%
WorcesterBosch Greenstar ZWBR7-25ACondensingGas90.7%
WorcesterBosch RX-2RSFCondensingGas85.7%
WorcesterBosch/British Gas CC1ZWB 7-29ACondensingGas90.6%
WorcesterBosch/British Gas CS1ZB 7-28ACondensingGas90.7%
WorcesterBosch/British Gas ICC2ZWBR 8-30ACondensingGas90.3%
WorcesterBosch/British Gas ICC2ZWBR 11-37ACondensingGas90.3%
WorcesterBosch/British Gas ICS1ZSBR 7-28ACondensingGas90.7%
WorcesterBosch/British Gas ICS1ZBR 8-35ACondensingGas90.4%
WorcesterBosch/British Gas RD529ZWB 7-29 ACondensingGas90.6%
WorcesterDanesmoor32/50.000Non-CondensingOil84.2%
WorcesterDanesmoor15/19.ROONon-CondensingOil85.5%
WorcesterDanesmoor15/19.OOONon-CondensingOil85.5%
WorcesterDanesmoor32/50 - 000 -GB - LNon-CondensingOil85.4%
WorcesterDanesmoor12/14-R00-GB-LNon-CondensingOil85.3%
WorcesterDanesmoor26/32.ROONon-CondensingOil85.3%
WorcesterDanesmoor20/25-000-GB-LNon-CondensingOil85.3%
WorcesterDanesmoor12/14-000-GB-LNon-CondensingOil85.3%
WorcesterDanesmoor20/25 - R00-GB-LNon-CondensingOil85.3%
WorcesterDanesmoor26/32.OOONon-CondensingOil85.3%
WorcesterDanesmoor50/70 - 000 - GB - LNon-CondensingOil85.2%
WorcesterDanesmoor50/70.000Non-CondensingOil84.8%
WorcesterDanesmoor12/14.ROONon-CondensingOil84.5%
WorcesterDanesmoor12/14.OOONon-CondensingOil84.5%
WorcesterDanesmoor20/25.ROONon-CondensingOil84.3%
WorcesterDanesmoor20/25.OOONon-CondensingOil84.3%
WorcesterDanesmoor FS12-18Non-CondensingOil85.7%
WorcesterDanesmoor FS18-25Non-CondensingOil85.7%
WorcesterDanesmoor System15.19.OSONon-CondensingOil85.5%
WorcesterDanesmoor System15/19.RSONon-CondensingOil85.5%
WorcesterDanesmoor System12/14-0S0-GB-L SystemNon-CondensingOil85.3%
WorcesterDanesmoor System20/25-RS0-GB-L SystemNon-CondensingOil85.3%
WorcesterDanesmoor System20/25-0S0-GB-L SystemNon-CondensingOil85.3%
WorcesterDanesmoor System12/14-RS0-GB-L SystemNon-CondensingOil85.3%
WorcesterDanesmoor System12/14.RSONon-CondensingOil84.5%
WorcesterDanesmoor System12/14.OSONon-CondensingOil84.5%
WorcesterDanesmoor System20/25.OSONon-CondensingOil84.3%
WorcesterDanesmoor System20/25.RSONon-CondensingOil84.3%
WorcesterDanesmoor Utility15/19.OOONon-CondensingOil85.5%
WorcesterDanesmoor Utility15/19.ROONon-CondensingOil85.5%
WorcesterDanesmoor Utility32/50 - 000 - GB - Utility - LNon-CondensingOil85.4%
WorcesterDanesmoor Utility12/14-000-GB-L UtilityNon-CondensingOil85.3%
WorcesterDanesmoor Utility20/25-000-GB-L UtilityNon-CondensingOil85.3%
WorcesterDanesmoor Utility12/14-R00-GB-L UtilityNon-CondensingOil85.3%
WorcesterDanesmoor Utility20/25-R00-GB-L UtilityNon-CondensingOil85.3%
WorcesterDanesmoor Utility50/70 - 000 - GB - Utility - LNon-CondensingOil85.2%
WorcesterDanesmoor Utility12/14.OOONon-CondensingOil84.5%
WorcesterDanesmoor Utility12/14.ROONon-CondensingOil84.5%
WorcesterDanesmoor Utility20/25.OOONon-CondensingOil84.3%
WorcesterDanesmoor Utility20/25.ROONon-CondensingOil84.3%
WorcesterDanesmoor Wall Mounted12/19 - R00 - GB - LNon-CondensingOil85.4%
WorcesterDanesmoor WM 12/19RSNon-CondensingOil84.8%
WorcesterDelglo3bfNon-CondensingGas65%
WorcesterDelglo2bfNon-CondensingGas65%
WorcesterDelglo2ofNon-CondensingGas65%
WorcesterDelglo3ofNon-CondensingGas65%
WorcesterFireflyPJ90-120Non-CondensingOil65%
WorcesterFirefly HD II40 D typeNon-CondensingOil65%
WorcesterFirefly HD II50Non-CondensingOil65%
WorcesterFirefly HD II40Non-CondensingOil65%
WorcesterFirefly HD II70Non-CondensingOil65%
WorcesterFirefly HD II100Non-CondensingOil65%
WorcesterFirefly HD II50 D typeNon-CondensingOil65%
WorcesterFirefly HD II60 D typeNon-CondensingOil65%
WorcesterFirefly HD II80Non-CondensingOil65%
WorcesterGB162-65kWCondensingGas90.4%
WorcesterGreenstarZB 7-28 HECondensingGas90.7%
WorcesterGreenstarZWB 7-30 HE CombiCondensingGas90.6%
WorcesterGreenstarZWB 7-25 HE CombiCondensingGas90.6%
WorcesterGreenstarZWBR 7-30 HE PlusCondensingGas90.6%
WorcesterGreenstarZWBR 11-35 HE PlusCondensingGas90.3%
WorcesterGreenstar36LXiCondensingGas90.5%
WorcesterGreenstar30 Si CompactCondensingGas90.5%
WorcesterGreenstarFS 30 CDi RegularCondensingGas90.5%
WorcesterGreenstar25 Si CompactCondensingGas90.5%
WorcesterGreenstar32 CDi CompactCondensingGas90.5%
WorcesterGreenstar36 CDi CompactCondensingGas90.5%
WorcesterGreenstar28 CDi CompactCondensingGas90.5%
WorcesterGreenstarFS 42 CDi RegularCondensingGas90.3%
WorcesterGreenstar30 I System CompactCondensingGas90.3%
WorcesterGreenstar27 I System CompactCondensingGas90.3%
WorcesterGreenstar30 Ri CompactCondensingGas90.3%
WorcesterGreenstar30 LXi SystemCondensingGas90.3%
WorcesterGreenstar27 Ri CompactCondensingGas90.3%
WorcesterGreenstar37 CDiCondensingGas90.2%
WorcesterGreenstar42 CDiCondensingGas90.2%
WorcesterGreenstar24i SystemCondensingGas90.2%
WorcesterGreenstar38CDi CombiCondensingGas90.2%
WorcesterGreenstar38CDi ClassicCondensingGas90.2%
WorcesterGreenstar24 RiCondensingGas90.2%
WorcesterGreenstar42CDi ClassicCondensingGas90.2%
WorcesterGreenstar12 RiCondensingGas90.1%
WorcesterGreenstar18 i SystemCondensingGas90.1%
WorcesterGreenstar15 i SystemCondensingGas90.1%
WorcesterGreenstar34CDi CombiCondensingGas90.1%
WorcesterGreenstar18RiCondensingGas90.1%
WorcesterGreenstar29CDi CombiCondensingGas90.1%
WorcesterGreenstar30 SiCondensingGas90.1%
WorcesterGreenstar25 SiCondensingGas90.1%
WorcesterGreenstar28i juniorCondensingGas90.1%
WorcesterGreenstar34CDi ClassicCondensingGas90.1%
WorcesterGreenstar29CDi ClassicCondensingGas90.1%
WorcesterGreenstar15RiCondensingGas90.1%
WorcesterGreenstar12i SystemCondensingGas90.1%
WorcesterGreenstar24i juniorCondensingGas90.1%
WorcesterGreenstar24CondensingGas90.0%
WorcesterGreenstar28CondensingGas90.0%
WorcesterGreenstar28 CDi CompactCondensingLPG92.6%
WorcesterGreenstar30 Si CompactCondensingLPG92.6%
WorcesterGreenstar25 Si CompactCondensingLPG92.6%
WorcesterGreenstar32 CDi CompactCondensingLPG92.6%
WorcesterGreenstar36 CDi CompactCondensingLPG92.6%
WorcesterGreenstar42 CDiCondensingLPG92.2%
WorcesterGreenstar42CDi ClassicCondensingLPG92.2%
WorcesterGreenstar37 CDiCondensingLPG92.2%
WorcesterGreenstar24i SystemCondensingLPG92.0%
WorcesterGreenstar29CDi ClassicCondensingLPG92.0%
WorcesterGreenstar34 CDi CombiCondensingLPG92.0%
WorcesterGreenstar29CDi CombiCondensingLPG92.0%
WorcesterGreenstar24 RiCondensingLPG92%
WorcesterGreenstar25 SiCondensingLPG91.9%
WorcesterGreenstar28i juniorCondensingLPG91.9%
WorcesterGreenstar24i juniorCondensingLPG91.9%
WorcesterGreenstarFS 30 CDi RegularCondensingLPG91.9%
WorcesterGreenstar30 SiCondensingLPG91.9%
WorcesterGreenstar38CDi ClassicCondensingLPG91.9%
WorcesterGreenstar38CDi CombiCondensingLPG91.9%
WorcesterGreenstar30 Ri CompactCondensingLPG91.8%
WorcesterGreenstar27 Ri CompactCondensingLPG91.8%
WorcesterGreenstar27 I System CompactCondensingLPG91.8%
WorcesterGreenstar30 I System CompactCondensingLPG91.8%
WorcesterGreenstarFS 42 CDi RegularCondensingLPG91.6%
WorcesterGreenstar12i SystemCondensingLPG91.4%
WorcesterGreenstar15RiCondensingLPG91.4%
WorcesterGreenstar18RiCondensingLPG91.4%
WorcesterGreenstar12 RiCondensingLPG91.4%
WorcesterGreenstar15 i SystemCondensingLPG91.4%
WorcesterGreenstar18 i SystemCondensingLPG91.4%
WorcesterGreenstar 29HE ConventionalZB 7-29CondensingGas90.7%
WorcesterGreenstar Camray25/32CondensingOil94.2%
WorcesterGreenstar Camray18/25CondensingOil93.2%
WorcesterGreenstar Camray12/18CondensingOil93.1%
WorcesterGreenstar Camray External25/32CondensingOil94.2%
WorcesterGreenstar Camray External18/25CondensingOil93.2%
WorcesterGreenstar Camray External12/18CondensingOil93.1%
WorcesterGreenstar Camray External System25/32CondensingOil94.2%
WorcesterGreenstar Camray External System18/25CondensingOil93.2%
WorcesterGreenstar Camray External System12/18CondensingOil93.1%
WorcesterGreenstar Camray System25/32CondensingOil94.2%
WorcesterGreenstar Camray System18/25CondensingOil93.2%
WorcesterGreenstar Camray System12/18CondensingOil93.1%
WorcesterGreenstar Camray Utility25/32CondensingOil94.2%
WorcesterGreenstar Camray Utility18/25CondensingOil93.2%
WorcesterGreenstar Camray Utility12/18CondensingOil93.1%
WorcesterGreenstar Camray Utility System25/32CondensingOil94.2%
WorcesterGreenstar Camray Utility System18/25CondensingOil93.2%
WorcesterGreenstar Camray Utility System12/18CondensingOil93.1%
WorcesterGreenstar Cdi30 Cdi ConventionalCondensingGas90.3%
WorcesterGreenstar Cdi30 Cdi SystemCondensingGas90.3%
WorcesterGreenstar CDi25 CdiCondensingGas90.3%
WorcesterGreenstar CDi30 CDiCondensingGas90.2%
WorcesterGreenstar CDi27 CDiCondensingGas90.2%
WorcesterGreenstar Cdi40 CdiCondensingGas90.2%
WorcesterGreenstar CDi35 CDiCondensingGas90.2%
WorcesterGreenstar Cdi40 Cdi ConventionalCondensingGas90.2%
WorcesterGreenstar CDi31 CDiCondensingGas90.2%
WorcesterGreenstar CDi25 CdiCondensingLPG92.4%
WorcesterGreenstar Cdi30 Cdi SystemCondensingLPG92.3%
WorcesterGreenstar Cdi30 Cdi ConventionalCondensingLPG92.3%
WorcesterGreenstar CDi31 CDiCondensingLPG92.2%
WorcesterGreenstar CDi35 CdiCondensingLPG92.2%
WorcesterGreenstar CDi30 CdiCondensingLPG92.2%
WorcesterGreenstar Cdi40 CdiCondensingLPG92.2%
WorcesterGreenstar CDi27 CDiCondensingLPG92.2%
WorcesterGreenstar Cdi40 Cdi ConventionalCondensingLPG92%
WorcesterGreenstar Danesmoor12/18CondensingOil93.2%
WorcesterGreenstar Danesmoor18/25CondensingOil93.0%
WorcesterGreenstar Danesmoor18/25-OOO-GBCondensingOil92.9%
WorcesterGreenstar Danesmoor25/32CondensingOil92.8%
WorcesterGreenstar Danesmoor External12/18CondensingOil93.2%
WorcesterGreenstar Danesmoor External18/25CondensingOil93%
WorcesterGreenstar Danesmoor External25/32CondensingOil92.8%
WorcesterGreenstar Danesmoor Utility12/18CondensingOil93.2%
WorcesterGreenstar Danesmoor Utility18/25CondensingOil93.0%
WorcesterGreenstar Danesmoor Utility25/32CondensingOil92.8%
WorcesterGreenstar Danesmoor Wall Mounted18/25CondensingOil92.8%
WorcesterGreenstar Danesmoor Wall-Mounted12/18CondensingOil92.7%
WorcesterGreenstar HEZB 7-27ACondensingGas90.7%
WorcesterGreenstar HEZWB 7-27ACondensingGas90.6%
WorcesterGreenstar HE 12/22RSCondensingOil90.7%
WorcesterGreenstar HE PlusZWBR 7-28ACondensingGas90.6%
WorcesterGreenstar HE PlusZWBR 11-35ACondensingGas90.3%
WorcesterGreenstar Heatslave25/32CondensingOil90.3%
WorcesterGreenstar Heatslave12/18CondensingOil90.2%
WorcesterGreenstar Heatslave18/25-OSO-GBCondensingOil90.1%
WorcesterGreenstar Heatslave External25/32CondensingOil90.3%
WorcesterGreenstar Heatslave External12/18CondensingOil90.2%
WorcesterGreenstar Heatslave External18/25CondensingOil90.1%
WorcesterGreenstar Highflow440CondensingGas91%
WorcesterGreenstar Highflow550 CDiCondensingGas90.8%
WorcesterGreenstar Highflow440 CDiCondensingGas90.8%
WorcesterGreenstar Highflow440CondensingLPG92.2%
WorcesterGreenstar Highflow550 CDiCondensingLPG92.2%
WorcesterGreenstar Highflow440 CDiCondensingLPG92.2%
WorcesterGreenstar R29 HE ConventionalCondensingGas90.7%
WorcesterGreenstar R28 HE SystemCondensingGas90.7%
WorcesterGreenstar R25 HE CombiCondensingGas90.6%
WorcesterGreenstar R30HE Plus CombiCondensingGas90.6%
WorcesterGreenstar R30 HE CombiCondensingGas90.6%
WorcesterGreenstar R35 HE Plus CombiCondensingGas90.3%
WorcesterGreenstar R40 HE ConventionalCondensingGas90.1%
WorcesterGreenstar R40 HE Plus CombiCondensingGas90.0%
WorcesterGreenstar R35 HE plus CombiCondensingLPG92.4%
WorcesterGreenstar R28 HE SystemCondensingLPG91.9%
WorcesterGreenstar R29 HE ConventionalCondensingLPG91.9%
WorcesterGreenstar R30 HE Plus CombiCondensingLPG91.8%
WorcesterGreenstar R30 HE CombiCondensingLPG91.8%
WorcesterGreenstar R40 HE ConventionalCondensingLPG91.8%
WorcesterGreenstar R25 HE CombiCondensingLPG91.7%
WorcesterGreenstar R40 HE Plus CombiCondensingLPG91.2%
WorcesterGreenstar Utility32/50-000-GBCondensingOil93.0%
WorcesterGreenstar Utility18/25-OOO-GBCondensingOil92.9%
WorcesterGreenstar Utility50/70-000-GBCondensingOil92.5%
WorcesterGreentar34CDi ClassicCondensingLPG92.0%
WorcesterHeat Slave15/19.RSONon-CondensingOil82.8%
WorcesterHeat Slave15/19.OSONon-CondensingOil82.8%
WorcesterHeat Slave20/25.RSONon-CondensingOil82.8%
WorcesterHeat Slave12/14.OSONon-CondensingOil81.8%
WorcesterHeat Slave12/14.RSONon-CondensingOil81.8%
WorcesterHeat Slave20/25.OSONon-CondensingOil81.6%
WorcesterHeatslavejuniorofNon-CondensingGas65%
WorcesterHeatslavejuniorbfNon-CondensingGas65%
WorcesterHeatslavesenior15bfNon-CondensingGas65%
WorcesterHeatslavesenior15ofNon-CondensingGas65%
WorcesterHeatslave9.24rsfNon-CondensingGas70%
WorcesterHeatslave9.24bfNon-CondensingGas65%
WorcesterHeatslave9.24ofNon-CondensingGas65%
WorcesterHeatslavesenior12ofNon-CondensingGas65%
WorcesterHeatslavesenior12bfNon-CondensingGas65%
WorcesterHeatslavehighflowbfNon-CondensingGas65%
WorcesterHeatslavehighflowofNon-CondensingGas65%
WorcesterHeatslavesenior6bfNon-CondensingGas65%
WorcesterHeatslavesenior6ofNon-CondensingGas65%
WorcesterHeatslavehighflow3.5rsfNon-CondensingGas72%
WorcesterHeatslavehighflow4.5bfNon-CondensingGas65%
WorcesterHeatslavehighflow4.5ofNon-CondensingGas65%
WorcesterHeatslave12/14RSNon-CondensingOil70%
WorcesterHeatslave20/25RSNon-CondensingOil70%
WorcesterHeatslave26/32-OSO-GB Oil CombiNon-CondensingOil82.5%
WorcesterHeatslave12/14-OSO-GB-L Oil CombiNon-CondensingOil82.5%
WorcesterHeatslave12/14-RSO-GB-L Oil CombiNon-CondensingOil82.5%
WorcesterHeatslave20/25-OSO-GB-L Oil CombiNon-CondensingOil82.5%
WorcesterHeatslave20/25-RSO-GB-L Oil CombiNon-CondensingOil82.5%
WorcesterHeatslave26/32-RSO-GB Oil CombiNon-CondensingOil82.5%
WorcesterHeatslave 2g50ofNon-CondensingGas65%
WorcesterHeatslave 2g40bfNon-CondensingGas65%
WorcesterHeatslave 2g40ofNon-CondensingGas65%
WorcesterHeatslave 2g50bfNon-CondensingGas65%
WorcesterHigh Flow 400BFNon-CondensingGas75.9%
WorcesterHighflow 400RSFNon-CondensingGas79.2%
WorcesterHighflow 400OFNon-CondensingGas75.2%
WorcesterHighflow 400 Electronic BFBFNon-CondensingGas80.0%
WorcesterHighflow 400 Electronic OFOFNon-CondensingGas78.5%
WorcesterHighflow 400 Electronic RSFRSFNon-CondensingGas78.8%
WorcesterHighflow 400 Electronic RSFRSFNon-CondensingLPG80.3%

What are SEDBUK Efficiency Ratings?

From 1999 to 2015 boilers were ranked on the SEDBUK scale which stands for ‘Seasonal Efficiency of a Domestic Boiler in the UK’. While many still refer to SEDBUK as the standard energy rating scale, it was actually replaced in 2015 by the Energy related Products directive, or ErP. It’s directly related to the EU’s ambition to improve the energy efficiency of our homes and achieve the following targets by 2020:

  • 20% reduction in EU greenhouse gas emissions (compared to 1990 levels)
  • 20% improvement in overall energy efficiency (across the EU)
  • 20% more energy produced from renewable resources such as solar or biomass.

Under the current ErP standards, boiler manufacturers are required to label their products with a rating from A++ to G, with G being the least efficient a boiler can be. In September 2019, efficiency grade A+++ will be added and the least efficient class, G, will be removed as an option, removing these products from the market as a result.

How Much Money Could I Save with a More Efficient Boiler

To understand how a new boiler could save you money, you need to consider the energy that an inefficient boiler is wasting. For example, if a boiler is only 70% efficient, for every £1 you spend on heating your home, 30p is being wasted on lost energy. If your new boiler can reach efficiency of 90%, that is just 10p lost of every £1. So that’s a saving of 20p in every £1 which really adds up over time.

The financial savings you could make by replacing your boiler with a more efficient model can be significant, but will vary depending on the size of your home, the fuel used by the boiler and the inefficiency of your existing boiler.

According to the Energy Saving Trust: “Replacing an old gas boiler with a programmer and room thermostat, with a new A-rated condensing boiler with a programmer, room thermostat and thermostatic radiator controls (TRVs) could save you:

Old Boiler ErP RatingEfficiencyDetached houseSemi-detached houseMid-terrace house
D78 – 82%£170£110£100
E74 – 78%£190£125£105
F70-74%£220£145£125
G<70%£320£210£180

Figures taken from the latest research by the Energy Saving Trust. Based on fuel prices as of April 2017.

For new boiler installations visit Boiler Guide to request quotes from independent local and regional heating engineers.

Worcester Bosch carry an enviable reputation for manufacturing boilers that are not only reliable and energy efficient but are also easy to install and service. They are not the cheapest boilers on the market but are widely available and reliable. This in itself carries significant benefit in that spares and support, such as plumbers knowledgeable with the product will be easy to find.

Manufacturing boilers since 1962 this innovative company were first to market with the combi boiler, following on from this huge success Bosch took control in 1992 allowing the company access to it’s world renowned engineering experience. Nowadays the company leads its field with top class boilers and renewable energy products. Some of the most popular products the brand offers include gas and oil boilers, hot water cylinders, renewable technologies such as heat pumps and solar water heating systems, as well as controls and accessories.

Worcester Bosch’s commitment to making high quality products have lead them to receive a Which? Best Buy awards for seven years running, and for Worcester to receive a Royal Warrant for supplying our boilers to Her Majesty The Queen’s Sandringham Estate.

The Greenstar Range

Worcester Greenstar has an extensive range of gas, LPG and oil-fired boilers, which are all A-rated, high-efficiency, condensing models. Some of the most popular Greenstar products include:

  • Greenstar Gas Combination, System and Regular Boilers.
  • Greenstar Oil Fired Boilers.
  • Greenstore Ground Source Heat Pumps.
  • Greenskies Solar Hot Water Heating.

All gas, oil and LPG boilers by Greenstar run at 90% efficiency and sit within class five (the lowest class) for NOx emissions. A Worcester condensing boiler also delivers dramatically reduced emissions of CO2, helping to reduce the environmental damage of your heating system.

How much do Worcester Bosch boilers cost?

This depends on the type of boiler you are looking for. A Worcester Bosch combi boiler tends to sit around £800 to £2515 (without installation). System boilers from this brand can cost around £810 to £2360, whilst a Worcester Bosch regular boiler is between around £720 to £1880 (excluding installation costs).