Worcester - Boiler Efficiency Rating

Worcester Bosch is one of the most well known boiler manufacturers in UK and have become a popular choice with homeowners looking for gas, oil or LPG boilers since their beginnings in 1962.

Their condensing boiler technology has seen Worcester Bosch lead the way when it comes to highly efficient boilers. With an extensive range of Combi, Regular and System boilers, their Greenstar models will help to lower the carbon footprint of your home as well your energy bills. These boilers have won several awards thanks to emitting low levels of CO2 and NOx, making them kinder on the environment than many other boilers on the market.

Model	Type	Fuel	Efficiency
Worcester 14/19 CBi RSF	Non-Condensing	Gas	79.4%
Worcester 15 CBi RSF	Non-Condensing	Gas	76.6%
Worcester 15 Sbi RSF	Non-Condensing	Gas	79.1%
Worcester 19/24 CBi RSF	Non-Condensing	Gas	78.4%
Worcester 24 CBi RSF	Non-Condensing	Gas	76.9%
Worcester 24 CDi – L OF	Non-Condensing	LPG	79.6%
Worcester 24 Cdi BF	Non-Condensing	Gas	79.4%
Worcester 24 Cdi OF	Non-Condensing	Gas	76.2%
Worcester 24 Cdi RSF	Non-Condensing	Gas	76.0%
Worcester 24 CDi RSF-L	Non-Condensing	LPG	80.5%
Worcester 24 I RSF	Non-Condensing	Gas	76.1%
Worcester 24 LE RSF	Non-Condensing	Gas	76.0%
Worcester 24 Sbi RSF	Non-Condensing	Gas	78.3%
Worcester 24 SI II RSF	Non-Condensing	LPG	80.5%
Worcester 240 CF	Non-Condensing	Gas	65.0%
Worcester 240bf	Non-Condensing	Gas	65.0%
Worcester 240of	Non-Condensing	Gas	65.0%
Worcester 240rsf	Non-Condensing	Gas	70.0%
Worcester 24CDi RSF Serial ASB	Non-Condensing	Gas	78.1%
Worcester 24CDi RSF Serial ASC	Non-Condensing	LPG	80.5%
Worcester 24i – L RSF	Non-Condensing	Gas	78.3%
Worcester 24i Junior	Non-Condensing	Gas	78.0%
Worcester 25 Si – L RSF	Non-Condensing	Gas	78.0%
Worcester 25 Si RSF	Non-Condensing	LPG	81.1%
Worcester 25Si – LL RSF	Non-Condensing	LPG	81.1%
Worcester 26 Cdi Xtra	Condensing	Gas	85.4%
Worcester 26 CDi Xtra RSF	Condensing	LPG	86.5%
Worcester 26 CDi Xtra RSF – L	Condensing	Gas	86.4%
Worcester 28 CDi – L RSF	Non-Condensing	LPG	80.7%
Worcester 28 Cdi RSF	Non-Condensing	Gas	78.9%
Worcester 28 LE RSF	Non-Condensing	Gas	78.9%
Worcester 28 SI II RSF	Non-Condensing	Gas	78.4%
Worcester 28 Si RSF	Non-Condensing	LPG	81.4%
Worcester 280rsf	Non-Condensing	Gas	70.0%
Worcester 28i Junior	Non-Condensing	Gas	78.9%
Worcester 28i RSF	Non-Condensing	Gas	78.0%
Worcester 35 CDi II RSF	Non-Condensing	Gas	78.5%
Worcester 35 Cdi RSF	Non-Condensing	Gas	78.9%
Worcester 533 Compact ErP	Condensing	Gas	89.8%
Worcester 533 Compact NG	Condensing	Gas	89.8%
Worcester 535 Compact ErP	Condensing	Gas	89.8%
Worcester 535 Compact NG	Condensing	Gas	89.8%
Worcester 80 ic RSF	Non-Condensing	Gas	75.2%
Worcester 9.24electronicrsf	Non-Condensing	Gas	70.0%
Worcester 9.24electronicrsfe	Non-Condensing	Gas	70.0%
Worcester 9/14 CBi RSF	Non-Condensing	Gas	78.5%
Worcester Bosch 50/70.000	Non-Condensing	Oil	85.3%
Worcester Bosch 70/90-000-NI-L	Non-Condensing	Oil	84.2%
Worcester Bosch 70/90.000	Non-Condensing	Oil	83.9%
Worcester Bosch 90/110.000	Non-Condensing	Oil	85.1%
Worcester Bosch Greenstar ZWBR 7-25A	Condensing	Gas	89.4%
Worcester Bosch RX-2 RSF	Condensing	Gas	85.4%
Worcester Bosch/British Gas CC1 ZWB 7-29A	Condensing	Gas	88.7%
Worcester Bosch/British Gas CS1 ZB 7-28A	Condensing	Gas	88.8%
Worcester Bosch/British Gas ICC2 ZWBR 11-37A	Condensing	Gas	89.5%
Worcester Bosch/British Gas ICC2 ZWBR 8-30A	Condensing	Gas	89.5%
Worcester Bosch/British Gas ICS1 ZBR 8-35A	Condensing	Gas	89.6%
Worcester Bosch/British Gas ICS1 ZSBR 7-28A	Condensing	Gas	88.8%
Worcester Bosch/British Gas RD529 ZWB 7-29 A	Condensing	Gas	88.7%
Worcester Danesmoor 12/14-000-GB-L	Non-Condensing	Oil	84.4%
Worcester Danesmoor 12/14-R00-GB-L	Non-Condensing	Oil	84.4%
Worcester Danesmoor 12/14.OOO	Non-Condensing	Oil	84.3%
Worcester Danesmoor 12/14.ROO	Non-Condensing	Oil	84.3%
Worcester Danesmoor 15/19.OOO	Non-Condensing	Oil	85.3%
Worcester Danesmoor 15/19.ROO	Non-Condensing	Oil	85.3%
Worcester Danesmoor 20/25 – R00-GB-L	Non-Condensing	Oil	84.2%
Worcester Danesmoor 20/25-000-GB-L	Non-Condensing	Oil	84.2%
Worcester Danesmoor 20/25.OOO	Non-Condensing	Oil	83.9%
Worcester Danesmoor 20/25.ROO	Non-Condensing	Oil	83.9%
Worcester Danesmoor 26/32.OOO	Non-Condensing	Oil	85.1%
Worcester Danesmoor 26/32.ROO	Non-Condensing	Oil	85.1%
Worcester Danesmoor 32/50 – 000 -GB – L	Non-Condensing	Oil	84.3%
Worcester Danesmoor 32/50.000	Non-Condensing	Oil	83.1%
Worcester Danesmoor 50/70 – 000 – GB – L	Non-Condensing	Oil	84.1%
Worcester Danesmoor 50/70.000	Non-Condensing	Oil	84.6%
Worcester Danesmoor FS 12-18	Non-Condensing	Oil	84.7%
Worcester Danesmoor FS 18-25	Non-Condensing	Oil	85.6%
Worcester Danesmoor System 12/14-0S0-GB-L System	Non-Condensing	Oil	84.4%
Worcester Danesmoor System 12/14-RS0-GB-L System	Non-Condensing	Oil	84.4%
Worcester Danesmoor System 12/14.OSO	Non-Condensing	Oil	84.3%
Worcester Danesmoor System 12/14.RSO	Non-Condensing	Oil	84.3%
Worcester Danesmoor System 15.19.OSO	Non-Condensing	Oil	85.3%
Worcester Danesmoor System 15/19.RSO	Non-Condensing	Oil	85.3%
Worcester Danesmoor System 20/25-0S0-GB-L System	Non-Condensing	Oil	84.2%
Worcester Danesmoor System 20/25-RS0-GB-L System	Non-Condensing	Oil	84.2%
Worcester Danesmoor System 20/25.OSO	Non-Condensing	Oil	83.9%
Worcester Danesmoor System 20/25.RSO	Non-Condensing	Oil	83.9%
Worcester Danesmoor Utility 12/14-000-GB-L Utility	Non-Condensing	Oil	84.4%
Worcester Danesmoor Utility 12/14-R00-GB-L Utility	Non-Condensing	Oil	84.4%
Worcester Danesmoor Utility 12/14.OOO	Non-Condensing	Oil	84.3%
Worcester Danesmoor Utility 12/14.ROO	Non-Condensing	Oil	84.3%
Worcester Danesmoor Utility 15/19.OOO	Non-Condensing	Oil	85.3%
Worcester Danesmoor Utility 15/19.ROO	Non-Condensing	Oil	85.3%
Worcester Danesmoor Utility 20/25-000-GB-L Utility	Non-Condensing	Oil	84.2%
Worcester Danesmoor Utility 20/25-R00-GB-L Utility	Non-Condensing	Oil	84.2%
Worcester Danesmoor Utility 20/25.OOO	Non-Condensing	Oil	83.9%
Worcester Danesmoor Utility 20/25.ROO	Non-Condensing	Oil	83.9%
Worcester Danesmoor Utility 32/50 – 000 – GB – Utility – L	Non-Condensing	Oil	84.3%
Worcester Danesmoor Utility 50/70 – 000 – GB – Utility – L	Non-Condensing	Oil	84.1%
Worcester Danesmoor Wall Mounted 12/19 – R00 – GB – L	Non-Condensing	Oil	84.4%
Worcester Danesmoor WM 12/19 RS	Non-Condensing	Oil	84.1%
Worcester Delglo 2bf	Non-Condensing	Gas	65.0%
Worcester Delglo 2of	Non-Condensing	Gas	65.0%
Worcester Delglo 3bf	Non-Condensing	Gas	65.0%
Worcester Delglo 3of	Non-Condensing	Gas	65.0%
Worcester Firefly HD II 100	Non-Condensing	Oil	65.0%
Worcester Firefly HD II 40	Non-Condensing	Oil	65.0%
Worcester Firefly HD II 40 D type	Non-Condensing	Oil	65.0%
Worcester Firefly HD II 50	Non-Condensing	Oil	65.0%
Worcester Firefly HD II 50 D type	Non-Condensing	Oil	65.0%
Worcester Firefly HD II 60 D type	Non-Condensing	Oil	65.0%
Worcester Firefly HD II 70	Non-Condensing	Oil	65.0%
Worcester Firefly HD II 80	Non-Condensing	Oil	65.0%
Worcester Firefly PJ90-120	Non-Condensing	Oil	65.0%
Worcester GB 162-50 kW	Condensing	Gas	88.7%
Worcester GB162-50 V2	Condensing	Gas	88.7%
Worcester GB162-65 V2	Condensing	Gas	88.6%
Worcester GB162-65kW	Condensing	Gas	88.9%
Worcester Greenstar 12 Ri	Condensing	Gas	88.8%
Worcester Greenstar 12i System	Condensing	Gas	88.8%
Worcester Greenstar 12i System ErP	Condensing	Gas	89.8%
Worcester Greenstar 12i System ErP LPG	Condensing	LPG	89.8%
Worcester Greenstar 12Ri ErP	Condensing	Gas	88.8%
Worcester Greenstar 12Ri ErP LPG	Condensing	LPG	89.0%
Worcester Greenstar 15 i System	Condensing	LPG	89.8%
Worcester Greenstar 15i System ErP	Condensing	Gas	89.7%
Worcester Greenstar 15i System ErP LPG	Condensing	LPG	89.1%
Worcester Greenstar 15Ri	Condensing	LPG	89.8%
Worcester Greenstar 15Ri ErP	Condensing	Gas	88.8%
Worcester Greenstar 15Ri ErP LPG	Condensing	LPG	89.1%
Worcester Greenstar 18 i System	Condensing	LPG	89.8%
Worcester Greenstar 18i System ErP	Condensing	Gas	89.7%
Worcester Greenstar 18i System ErP LPG	Condensing	LPG	89.1%
Worcester Greenstar 18Ri	Condensing	LPG	89.8%
Worcester Greenstar 18Ri ErP	Condensing	Gas	88.8%
Worcester Greenstar 18Ri ErP LPG	Condensing	LPG	89.2%
Worcester Greenstar 21i System ErP	Condensing	Gas	89.7%
Worcester Greenstar 21i System ErP LPG	Condensing	LPG	89.1%
Worcester Greenstar 24	Condensing	Gas	88.6%
Worcester Greenstar 24 Ri	Condensing	Gas	89.2%
Worcester Greenstar 24i junior	Condensing	LPG	90.1%
Worcester Greenstar 24i System	Condensing	Gas	89.2%
Worcester Greenstar 24i System ErP	Condensing	Gas	89.7%
Worcester Greenstar 24i System ErP LPG	Condensing	LPG	89.1%
Worcester Greenstar 24Ri ErP	Condensing	Gas	89.2%
Worcester Greenstar 24Ri ErP LPG	Condensing	LPG	88.9%
Worcester Greenstar 25 Si	Condensing	LPG	90.1%
Worcester Greenstar 25 Si Compact	Condensing	Gas	89.8%
Worcester Greenstar 25i ErP	Condensing	Gas	89.6%
Worcester Greenstar 25i ErP LPG	Condensing	LPG	89.1%
Worcester Greenstar 25Si Compact ErP	Condensing	Gas	89.8%
Worcester Greenstar 25Si Compact ErP LPG	Condensing	LPG	90.4%
Worcester Greenstar 27 I System Compact	Condensing	Gas	89.0%
Worcester Greenstar 27 Ri Compact	Condensing	Gas	89.0%
Worcester Greenstar 27i System Compact ErP	Condensing	Gas	89.0%
Worcester Greenstar 27i System Compact ErP LPG	Condensing	LPG	89.9%
Worcester Greenstar 27Ri Compact ErP	Condensing	Gas	89.0%
Worcester Greenstar 27Ri Compact ErP LPG	Condensing	LPG	89.9%
Worcester Greenstar 28	Condensing	Gas	88.6%
Worcester Greenstar 28 CDi Compact	Condensing	LPG	90.9%
Worcester Greenstar 28CDi Compact ErP	Condensing	Gas	89.8%
Worcester Greenstar 28CDi Compact ErP LPG	Condensing	LPG	90.4%
Worcester Greenstar 28i junior	Condensing	LPG	90.1%
Worcester Greenstar 29CDi Classic	Condensing	Gas	89.1%
Worcester Greenstar 29CDi Classic ErP	Condensing	Gas	89.1%
Worcester Greenstar 29CDi Classic ErP LPG	Condensing	LPG	90.1%
Worcester Greenstar 29CDi Combi	Condensing	LPG	90.1%
Worcester Greenstar 29HE Conventional ZB 7-29	Condensing	Gas	88.7%
Worcester Greenstar 30	Condensing	Gas	88.6%
Worcester Greenstar 30 CDi Classic Regular	Condensing	LPG	90.2%
Worcester Greenstar 30 CDi Classic System	Condensing	LPG	90.2%
Worcester Greenstar 30 I System Compact	Condensing	Gas	89.0%
Worcester Greenstar 30 LXi System	Condensing	Gas	89.0%
Worcester Greenstar 30 Ri Compact	Condensing	Gas	89.0%
Worcester Greenstar 30 Si	Condensing	LPG	90.1%
Worcester Greenstar 30 Si Compact	Condensing	Gas	89.8%
Worcester Greenstar 30CDi Classic Regular ErP	Condensing	Gas	89.2%
Worcester Greenstar 30CDi Classic Regular ErP LPG	Condensing	LPG	90.2%
Worcester Greenstar 30CDi Classic System ErP	Condensing	Gas	89.2%
Worcester Greenstar 30CDi Classic System ErP LPG	Condensing	LPG	90.2%
Worcester Greenstar 30i ErP	Condensing	Gas	89.6%
Worcester Greenstar 30i ErP LPG	Condensing	LPG	89.1%
Worcester Greenstar 30i System Compact ErP	Condensing	Gas	89.0%
Worcester Greenstar 30i System Compact ErP LPG	Condensing	LPG	89.9%
Worcester Greenstar 30Ri Compact ErP	Condensing	Gas	89.0%
Worcester Greenstar 30Ri Compact ErP LPG	Condensing	LPG	89.9%
Worcester Greenstar 30Si Compact ErP	Condensing	Gas	89.8%
Worcester Greenstar 30Si Compact ErP LPG	Condensing	LPG	90.4%
Worcester Greenstar 32 CDi Compact	Condensing	Gas	89.8%
Worcester Greenstar 32CDi Compact ErP	Condensing	Gas	89.8%
Worcester Greenstar 32CDi Compact ErP LPG	Condensing	LPG	90.4%
Worcester Greenstar 34 CDi Combi	Condensing	LPG	90.1%
Worcester Greenstar 34CDi Classic	Condensing	Gas	89.1%
Worcester Greenstar 34CDi Classic ErP	Condensing	Gas	89.1%
Worcester Greenstar 34CDi Classic ErP LPG	Condensing	LPG	90.1%
Worcester Greenstar 34CDi Combi	Condensing	Gas	89.1%
Worcester Greenstar 35 CDi Classic System	Condensing	LPG	90.2%
Worcester Greenstar 35CDi Classic System ErP	Condensing	Gas	89.2%
Worcester Greenstar 35CDi Classic System ErP LPG	Condensing	LPG	90.2%
Worcester Greenstar 36 CDi Compact	Condensing	LPG	90.9%
Worcester Greenstar 36CDi Compact ErP	Condensing	Gas	89.8%
Worcester Greenstar 36CDi Compact ErP LPG	Condensing	LPG	90.4%
Worcester Greenstar 36LXi	Condensing	Gas	89.8%
Worcester Greenstar 37 CDi	Condensing	LPG	90.4%
Worcester Greenstar 38CDi Classic	Condensing	Gas	89.0%
Worcester Greenstar 38CDi Classic ErP	Condensing	Gas	89.0%
Worcester Greenstar 38CDi Classic ErP LPG	Condensing	LPG	90.0%
Worcester Greenstar 38CDi Combi	Condensing	LPG	90.0%
Worcester Greenstar 40 CDi Classic Regular	Condensing	LPG	90.2%
Worcester Greenstar 40CDi Classic Regular ErP	Condensing	Gas	89.2%
Worcester Greenstar 40CDi Classic Regular ErP LPG	Condensing	LPG	90.2%
Worcester Greenstar 42 CDi	Condensing	LPG	90.4%
Worcester Greenstar 42CDi Classic	Condensing	Gas	89.4%
Worcester Greenstar 42CDi Classic ErP	Condensing	Gas	89.0%
Worcester Greenstar 42CDi Classic ErP LPG	Condensing	LPG	90.0%
Worcester Greenstar 9i System ErP	Condensing	Gas	89.8%
Worcester Greenstar 9i System ErP LPG	Condensing	LPG	89.8%
Worcester Greenstar Camray 12/18	Condensing	Oil	90.9%
Worcester Greenstar Camray 18/25	Condensing	Oil	91.2%
Worcester Greenstar Camray 25/32	Condensing	Oil	91.7%
Worcester Greenstar Camray External 12/18	Condensing	Oil	90.9%
Worcester Greenstar Camray External 18/25	Condensing	Oil	91.2%
Worcester Greenstar Camray External 25/32	Condensing	Oil	91.7%
Worcester Greenstar Camray External System 12/18	Condensing	Oil	90.9%
Worcester Greenstar Camray External System 18/25	Condensing	Oil	91.2%
Worcester Greenstar Camray External System 25/32	Condensing	Oil	91.7%
Worcester Greenstar Camray System 12/18	Condensing	Oil	90.9%
Worcester Greenstar Camray System 18/25	Condensing	Oil	91.2%
Worcester Greenstar Camray System 25/32	Condensing	Oil	91.7%
Worcester Greenstar Camray Utility 12/18	Condensing	Oil	90.9%
Worcester Greenstar Camray Utility 18/25	Condensing	Oil	91.2%
Worcester Greenstar Camray Utility 25/32	Condensing	Oil	91.7%
Worcester Greenstar Camray Utility System 12/18	Condensing	Oil	90.9%
Worcester Greenstar Camray Utility System 18/25	Condensing	Oil	91.2%
Worcester Greenstar Camray Utility System 25/32	Condensing	Oil	91.7%
Worcester Greenstar CDi 25 Cdi	Condensing	Gas	90.0%
Worcester Greenstar CDi 27 CDi	Condensing	LPG	90.4%
Worcester Greenstar CDi 30 CDi	Condensing	Gas	89.4%
Worcester Greenstar Cdi 30 Cdi Conventional	Condensing	Gas	89.5%
Worcester Greenstar Cdi 30 Cdi System	Condensing	Gas	89.5%
Worcester Greenstar CDi 31 CDi	Condensing	Gas	89.4%
Worcester Greenstar CDi 35 CDi	Condensing	Gas	89.4%
Worcester Greenstar Cdi 40 Cdi	Condensing	Gas	89.4%
Worcester Greenstar Cdi 40 Cdi Conventional	Condensing	Gas	89.1%
Worcester Greenstar Danesmoor 12/18	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor 12/18 ErP	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor 18/25	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor 18/25 ErP	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor 18/25-OOO-GB	Condensing	Oil	90.8%
Worcester Greenstar Danesmoor 25/32	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor 25/32 ErP	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor External 12/18	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor External 12/18 ErP	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor External 18/25	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor External 18/25 ErP	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor External 25/32	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor External 25/32 ErP	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor System 12/18	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor System 12/18 ErP	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor System 18/25	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor System 18/25 ErP	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor System 25/32	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor System 25/32 ErP	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor System External 12/18	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor System External 12/18 ErP	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor System External 18/25	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor System External 18/25 ErP	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor System External 25/32	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor System External 25/32 ErP	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor System Utility 12/18	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor System Utility 12/18 ErP	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor System Utility 18/25	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor System Utility 18/25 ErP	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor System Utility 25/32	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor System Utility 25/32 ErP	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor Utility 12/18	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor Utility 12/18 ErP	Condensing	Oil	91.1%
Worcester Greenstar Danesmoor Utility 18/25	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor Utility 18/25 ErP	Condensing	Oil	90.9%
Worcester Greenstar Danesmoor Utility 25/32	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor Utility 25/32 ErP	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor Utility 32/50 ErP	Condensing	Oil	90.5%
Worcester Greenstar Danesmoor Utility 50/70 ErP	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor Wall Mounted 18/25	Condensing	Oil	90.7%
Worcester Greenstar Danesmoor Wall-Mounted 12/18	Condensing	Oil	90.7%
Worcester Greenstar FS 30 CDi Regular	Condensing	Gas	88.9%
Worcester Greenstar FS 30CDi Regular ErP	Condensing	Gas	88.9%
Worcester Greenstar FS 42 CDi Regular	Condensing	Gas	88.8%
Worcester Greenstar FS 42CDi Regular ErP	Condensing	Gas	88.8%
Worcester Greenstar HE 12/22 RS	Condensing	Oil	89.5%
Worcester Greenstar HE Plus ZWBR 11-35A	Condensing	Gas	89.5%
Worcester Greenstar HE Plus ZWBR 7-28A	Condensing	Gas	88.7%
Worcester Greenstar HE ZB 7-27A	Condensing	Gas	88.8%
Worcester Greenstar HE ZWB 7-27A	Condensing	Gas	88.7%
Worcester Greenstar Heatslave 12/18	Condensing	Oil	89.3%
Worcester Greenstar Heatslave 18/25-OSO-GB	Condensing	Oil	89.1%
Worcester Greenstar Heatslave 25/32	Condensing	Oil	89.1%
Worcester Greenstar Heatslave External 12/18	Condensing	Oil	89.3%
Worcester Greenstar Heatslave External 18/25	Condensing	Oil	89.1%
Worcester Greenstar Heatslave External 25/32	Condensing	Oil	89.1%
Worcester Greenstar Heatslave II 12/18	Condensing	Oil	89.4%
Worcester Greenstar Heatslave II 12/18 ErP	Condensing	Oil	89.4%
Worcester Greenstar Heatslave II 18/25	Condensing	Oil	89.2%
Worcester Greenstar Heatslave II 18/25 ErP	Condensing	Oil	89.2%
Worcester Greenstar Heatslave II 25/32	Condensing	Oil	89.0%
Worcester Greenstar Heatslave II 25/32 ErP	Condensing	Oil	89.0%
Worcester Greenstar Heatslave II External 12/18	Condensing	Oil	89.4%
Worcester Greenstar Heatslave II External 12/18 ErP	Condensing	Oil	89.4%
Worcester Greenstar Heatslave II External 18/25	Condensing	Oil	89.2%
Worcester Greenstar Heatslave II External 18/25 ErP	Condensing	Oil	89.2%
Worcester Greenstar Heatslave II External 25/32	Condensing	Oil	89.0%
Worcester Greenstar Heatslave II External 25/32 ErP	Condensing	Oil	89.0%
Worcester Greenstar Highflow 440	Condensing	Gas	89.1%
Worcester Greenstar Highflow 440 CDi	Condensing	Gas	89.2%
Worcester Greenstar Highflow 440CDi ErP	Condensing	Gas	89.2%
Worcester Greenstar Highflow 550 CDi	Condensing	Gas	89.2%
Worcester Greenstar Highflow 550CDi ErP	Condensing	Gas	89.2%
Worcester Greenstar R 25 HE Combi	Condensing	Gas	88.7%
Worcester Greenstar R 28 HE System	Condensing	Gas	88.8%
Worcester Greenstar R 29 HE Conventional	Condensing	Gas	88.8%
Worcester Greenstar R 30 HE Combi	Condensing	Gas	88.7%
Worcester Greenstar R 30 HE Plus Combi	Condensing	LPG	89.7%
Worcester Greenstar R 30HE Plus Combi	Condensing	Gas	88.7%
Worcester Greenstar R 35 HE Plus Combi	Condensing	Gas	89.5%
Worcester Greenstar R 40 HE Conventional	Condensing	Gas	89.0%
Worcester Greenstar R 40 HE Plus Combi	Condensing	Gas	88.9%
Worcester Greenstar Utility 18/25-OOO-GB	Condensing	Oil	90.8%
Worcester Greenstar Utility 32/50-000-GB	Condensing	Oil	90.7%
Worcester Greenstar Utility 50/70-000-GB	Condensing	Oil	90.5%
Worcester Greenstar ZB 7-28 HE	Condensing	Gas	88.8%
Worcester Greenstar ZWB 7-25 HE Combi	Condensing	Gas	88.7%
Worcester Greenstar ZWB 7-30 HE Combi	Condensing	Gas	88.7%
Worcester Greenstar ZWBR 11-35 HE Plus	Condensing	Gas	89.5%
Worcester Greenstar ZWBR 7-30 HE Plus	Condensing	Gas	88.7%
Worcester Heat Slave 12/14.OSO	Non-Condensing	Oil	82.8%
Worcester Heat Slave 12/14.RSO	Non-Condensing	Oil	82.8%
Worcester Heat Slave 15/19.OSO	Non-Condensing	Oil	83.7%
Worcester Heat Slave 15/19.RSO	Non-Condensing	Oil	83.7%
Worcester Heat Slave 20/25.OSO	Non-Condensing	Oil	82.4%
Worcester Heat Slave 20/25.RSO	Non-Condensing	Oil	83.7%
Worcester Heatslave 12/14-OSO-GB-L Oil Combi	Non-Condensing	Oil	82.7%
Worcester Heatslave 12/14-RSO-GB-L Oil Combi	Non-Condensing	Oil	82.7%
Worcester Heatslave 12/14RS	Non-Condensing	Oil	70.0%
Worcester Heatslave 2 g40bf	Non-Condensing	Gas	65.0%
Worcester Heatslave 2 g40of	Non-Condensing	Gas	65.0%
Worcester Heatslave 2 g50bf	Non-Condensing	Gas	65.0%
Worcester Heatslave 2 g50of	Non-Condensing	Gas	65.0%
Worcester Heatslave 20/25-OSO-GB-L Oil Combi	Non-Condensing	Oil	82.5%
Worcester Heatslave 20/25-RSO-GB-L Oil Combi	Non-Condensing	Oil	82.5%
Worcester Heatslave 20/25RS	Non-Condensing	Oil	70.0%
Worcester Heatslave 26/32-OSO-GB Oil Combi	Non-Condensing	Oil	83.4%
Worcester Heatslave 26/32-RSO-GB Oil Combi	Non-Condensing	Oil	83.4%
Worcester Heatslave 9.24bf	Non-Condensing	Gas	65.0%
Worcester Heatslave 9.24of	Non-Condensing	Gas	65.0%
Worcester Heatslave 9.24rsf	Non-Condensing	Gas	70.0%
Worcester Heatslave highflow3.5rsf	Non-Condensing	Gas	72.0%
Worcester Heatslave highflow4.5bf	Non-Condensing	Gas	65.0%
Worcester Heatslave highflow4.5of	Non-Condensing	Gas	65.0%
Worcester Heatslave highflowbf	Non-Condensing	Gas	65.0%
Worcester Heatslave highflowof	Non-Condensing	Gas	65.0%
Worcester Heatslave juniorbf	Non-Condensing	Gas	65.0%
Worcester Heatslave juniorof	Non-Condensing	Gas	65.0%
Worcester Heatslave senior12bf	Non-Condensing	Gas	65.0%
Worcester Heatslave senior12of	Non-Condensing	Gas	65.0%
Worcester Heatslave senior15bf	Non-Condensing	Gas	65.0%
Worcester Heatslave senior15of	Non-Condensing	Gas	65.0%
Worcester Heatslave senior6bf	Non-Condensing	Gas	65.0%
Worcester Heatslave senior6of	Non-Condensing	Gas	65.0%
Worcester High Flow 400 BF	Non-Condensing	Gas	75.9%
Worcester Highflow 400 Electronic BF BF	Non-Condensing	Gas	80.0%
Worcester Highflow 400 Electronic OF OF	Non-Condensing	Gas	78.5%
Worcester Highflow 400 Electronic RSF RSF	Non-Condensing	LPG	80.3%
Worcester Highflow 400 OF	Non-Condensing	Gas	75.2%
Worcester Highflow 400 RSF	Non-Condensing	Gas	79.2%

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