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Compare System Boilers

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Alpha

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Alpha CD28S System Gas Boiler 28kw 88.80% 3 years £840
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Alpha CD20S System Gas Boiler 20kw 88.80% 3 years £770
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Alpha CD12S System Gas Boiler 12kw 88.60% 3 years £760
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Alpha InTec2 20SE System Gas Boiler 20kw 88.9% 5 years £827
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Alpha InTec2 30SE System Gas Boiler 30kw 89% 5 years £827
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Alpha InTec 12S System Gas Boiler 13kw 88.80% 3 years £800
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Alpha InTec 18S System Gas Boiler 20kw 88.80% 3 years £900
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Alpha InTec 28S System Gas Boiler 30kw 89.00% 3 years £900
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Alpha ProTec Plus 50 System Gas Boiler 54kw 88.5% 3 years £983
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Alpha ProTec Plus 70 System Gas Boiler 74kw 88.6% 3 years £985
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Alpha ProTec Plus 90 System Gas Boiler 98kw 88.7% 3 years £1144
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Ariston

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Ariston GENUS HE 24 System Gas Boiler 24kw 90.3 1 year £571
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Ariston E-System One 24kW System Gas Boiler 24kw 94% 2 years £720
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Ariston E-System One 30kW System Gas Boiler 30kw 94% 2 years £890
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Ariston Clas System One 18kW System Gas Boiler 18kw 94% 8 years £590
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Ariston Clas System One 24kW System Gas Boiler 24kw 94% 8 years £740
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Ariston Clas System one 30kw System Gas Boiler 30kw 94% 8 years £810
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ATAG

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
ATAG IS40 40kW System Gas Boiler 40kw 94% 10 years £0
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ATAG IS32 32kW System Gas Boiler 32kw 94% 10 years £0
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ATAG IS24 24kW System Gas Boiler 24kw 94% 10 years £0
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ATAG IS18 18kW System Gas Boiler 18kw 93% 10 years £0
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ATAG IS15 15kW System Gas Boiler 15kw 93% 10 years £0
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Baxi

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Baxi EcoBlue System 12 Gas Boiler 12kw 89.1% 7 years £880
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Baxi EcoBlue System 15 Gas Boiler 15kw 89.1% 7 years £846
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Baxi EcoBlue System 18 Gas Boiler 18kw 89.1% 7 years £960
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Baxi EcoBlue System 24 Gas Boiler 24kw 89.1% 7 years £1060
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Baxi EcoBlue System 28 Gas Boiler 28kw 89.1% 7 years £1010
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Baxi EcoBlue System 32 Gas Boiler 32kw 89.1% 7 years £1160
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Baxi Megaflo System 15 Gas Boiler 15kw 88.6% 7 years £835
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Baxi Megaflo System 18 Gas Boiler 18kw 88.6% 7 years £812
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Baxi Megaflo System 24 Gas Boiler 24kw 88.6% 7 years £910
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Baxi Megaflo System 28 Gas Boiler 28kw 88.5% 7 years £929
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Baxi Megaflo System 32 Gas Boiler 32kw 88.5% 7 years £965
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Biasi

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Biasi Inovia System ERP 25kW Gas Boiler 25kw 92% 5 years £615
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Biasi Advance Plus ERP 16kW System Gas Boiler 16kw 91% 5 years £561
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Biasi Advance Plus ERP 25kW System Gas Boiler 25kw 92% 5 years £593
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Biasi Advance Plus ERP 30kW System Gas Boiler 30kw 92% 5 years £615
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Biasi Riva Plus ERP 28kW System Gas Boiler 28kw 89% 2 years £525
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Biasi Riva Plus ERP 24kW System Gas Boiler 24kw 89% 5 years £465
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Ferroli

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Ferroli Optimax HE PLUS 18 s System Gas Boiler 18kw 92.5% 5 years £539
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Ferroli Optimax HE PLUS 25s System Gas Boiler 25kw 90.5% 5 years £539
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Ferroli Optimax HE 31 S System Gas Boiler 30kw 90.6% 5 years £589
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Ferroli Modena 18s HE System Gas Boiler 18kw 90.20% 5 year warranty (7 year and 10 year option) £565
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Ferroli Modena 25s HE System Gas Boiler 25kw 90.40% 5 year warranty (7 year and 10 year option) £580
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Ferroli Modena 32s HE System Gas Boiler 32kw 90.40% 5 year warranty (7 year and 10 year option) £647
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Firebird

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Firebird Envirolite Utility Internal 35kW Regular Oil Boiler 35kw 92% 5 years £2200
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Firebird Envirolite System Internal 35kW Oil Boiler 35kw 93% 5 years £2000
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Firebird Enviroblue Kitchen System Internal 20kW Oil Boiler 20kw 93% 5 years £1250
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Firebird Enviroblue Kitchen System Internal 26kW Oil Boiler 26kw 93% 5 years £1350
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Firebird Enviroblue Kitchen System Internal 35kW Oil Boiler 35kw 93% 5 years £2295
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Glow-worm

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Glow-worm Ultimate2 25kW System Gas Boiler 25kw 89.3% 5 years £820
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Glow-worm Easicom 25s System Gas Boiler 25kw 89.3% 3 years £860
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Glow-worm Energy System 12kW Gas Boiler 12kw 89.4% 5 years £667
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Glow-worm Energy System 15kW Gas Boiler 15kw 89.4% 7 years £706
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Glow-worm Energy System 18kW Gas Boiler 18kw 89.4% 7 years £759
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Glow-worm Energy System 25kW Gas Boiler 25kw 89.4% 7 years £796
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Glow-worm Energy System 30kW Gas Boiler 30kw 89.3% 7 years £850
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Grant

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Grant VortexBlue Kitchen/Utility 21kW System Oil Boiler 21kw 89.5% 2 years £1510
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Grant VortexBlue Kitchen/Utility 26kW System Oil Boiler 26kw 89.5% 2 years £2120
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Grant Vortex Pro Kitchen/Utility 36kW Regular Oil Boiler 36kw 93.3% 2 years £1635
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Grant Vortex Eco Utility 21kW System Oil Boiler 21kw 90.3% 2 years £1407
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Grant Vortex Eco Utility 26kW System Oil Boiler 26kw 90.3% 2 years £1649
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Grant Vortex Eco Utility 35kW System Oil Boiler 35kw 90.8% 2 years £1744
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Grant Vortex Eco Wall Hung 16kW System Oil Boiler 16kw 91.6% 2 years £1480
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Grant Vortex Eco Wall Hung 21kW System Oil Boiler 21kw 90.13% 2 years £1658
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Grant Vortex Eco External System Module 21kW Oil Boiler 21kw 90.3% 2 years £1630
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Grant Vortex Eco External System Module 26kW Oil Boiler 26kw 90.3% 2 years £1835
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Grant Vortex Eco External System Module 35kW Oil Boiler 35kw 90.8% 2 years £2065
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Grant Vortex Pro Kitchen/Utility 26kW System Oil Boiler 26kw 95% 2 years £1551
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Grant VortexBlue Kitchen/Utility 36kW System Oil Boiler 36kw 93.3% 2 years £2185
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Grant Vortex Eco Wall Hung External 16kW System Oil Boiler 16kw 91.6% 2 years £1755
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Grant Vortex Eco Wall Hung External 21kW System Oil Boiler 21kw 91.6% 2 years £1600
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Grant Vortex Pro Kitchen/Utility 46kW System Oil Boiler 46kw 95.1% 2 years £1865
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Ideal

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Ideal Logic System 15kW Gas Boiler 15kw 89.30% 7 years £700
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Ideal Logic Plus System 15kW Gas Boiler 15kw 93% 7 years £821
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Ideal Logic Plus System 18kW Gas Boiler 18kw 93% 7 years £895
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Ideal Logic Plus System 24kW Gas Boiler 24kw 93% 7 years £920
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Ideal Logic Plus System 30kW Gas Boiler 30kw 93% 7 years £865
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Ideal Vogue 15kW System Gas Boiler 15kw 92% 10 years £840
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Ideal Vogue 18kW System Gas Boiler 18kw 93% 10 years £930
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Ideal Vogue 26kW System Gas Boiler 26kw 93% 10 years £910
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Ideal Vogue 32kW System Gas Boiler 32kw 93% 10 years £1004
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Ideal Logic System 18kW Gas Boiler 18kw 97.8% 2 years £890
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Ideal Logic System 24kW Gas Boiler 24kw 98.5% 2 years £960
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Ideal Logic System 30kW Gas Boiler 30kw 98.3% 2 years £980
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Ideal Vogue GEN2 S15 System Gas Boiler 15kw 88.9% 10 years £790
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Ideal The Vogue GEN2 S18 System Gas Boiler 18kw 89.3% 10 years £850
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Ideal The Vogue GEN2 S26 System Gas Boiler 26kw 89.3% 10 years £1070
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Ideal Vogue GEN2 S32 System Gas Boiler 32kw 89.3% 10 years £1250
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Intergas

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Intergas Compact HRE SB 18Kw System Gas Boiler 18kw 93% 7 years £900
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Intergas Compact HRE SB 24Kw System Gas Boiler 24kw 93% 7 years £850
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Intergas Compact HRE SB 30Kw System Gas Boiler 30kw 93% 7 years £920
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Intergas Compact HRE SB 40Kw System Gas Boiler 40kw 92% 10 years £1185
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Johnson and Starley

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Johnson and Starley QuanTec 24s System 24kW Oil Boiler 24kw 89.5% 8 years £0
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Keston

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Keston S30 30kW System Gas Boiler 30kw 89.6% 2 years £1010
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Main

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Main System Eco Elite 24kW Gas Boiler 24kw 89.7% 3 years £618
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Main System Eco Elite 28kW Gas Boiler 28kw 88% 3 years £670
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Mistral

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Mistral Sealed System CS1 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £2300
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Mistral Sealed System CS2 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £2370
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Mistral Sealed System S1 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £1320
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Mistral Sealed System S2 26kW Oil Boiler 26kw 87% 2 yr. parts - 5 yr. heat exch £1380
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Mistral Sealed System S3 35kW Oil Boiler 35kw 87% 2 yr. parts - 5 yr. heat exch £1500
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Mistral Sealed System S4 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £1680
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Mistral Outdoor Sealed System OD SS1 20kW Oil Boiler 20kw 87% 2 yr. parts - 5 yr. heat exch £1500
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Mistral Outdoor Sealed System OD SS2 26kW Oil Boiler 26kw 87% 2 yr. parts - 5 yr. heat exch £1590
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Mistral Outdoor Sealed System OD SS4 41kW Oil Boiler 41kw 87% 2 yr. parts - 5 yr. heat exch £1920
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Mistral Sealed System CS3 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2700
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Mistral Sealed System CS4 41kW Oil Boiler 41kw 92% 2 yr. parts - 5 yr. heat exch £3200
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Mistral Outdoor Sealed System COD SS1 20kW Oil Boiler 20kw 92% 2 yr. parts - 5 yr. heat exch £1605
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Mistral Outdoor Sealed System COD SS2 26kW Oil Boiler 26kw 92% 2 yr. parts - 5 yr. heat exch £1680
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Mistral Outdoor Sealed System COD SS3 35kW Oil Boiler 35kw 92% 2 yr. parts - 5 yr. heat exch £2040
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Mistral Outdoor Sealed System COD SS4 41kW Oil Boiler 41kw 90% 2 yr. parts - 5 yr. heat exch £2160
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Potterton

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Potterton Promax System HE Plus A 12kW Gas Boiler 12kw 91.10% 2 years £930
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Potterton Promax System 12kW Gas Boiler 12kw 89% 2 years £815
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Potterton Promax System 15kW Gas Boiler 15kw 89% 2 years £875
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Potterton Promax System 18kW Gas Boiler 18kw 89% 2 years £830
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Potterton Promax System 24kW Gas Boiler 24kw 89% 2 years £791
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Potterton Promax System 32kW Gas Boiler 32kw 89% 2 years £965
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Potterton Promax System HE Plus A 15kW Gas Boiler 15kw 91.1% 2 years £825
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Potterton Promax System HE Plus A 18kW Gas Boiler 18kw 91.1% 1 year £942
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Potterton Promax System HE Plus A 32kW Gas Boiler 32kw 91.1% 1 year £1050
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Potterton Promax System HE Plus A 24kW Gas Boiler 24kw 91.1% 1 year £810
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Potterton Ultra System 12kW Gas Boiler 12kw 89% 2 years £678
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Potterton Ultra System 15kW Gas Boiler 15kw 89% 2 years £900
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Potterton Ultra System 18kW Gas Boiler 18kw 89% 2 years £1332
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Potterton Ultra System 21kW Gas Boiler 21kw 89% 2 years £1322
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Potterton Ultra System 24kW Gas Boiler 24kw 89% 2 years £1800
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Potterton Assure 15kW System Gas Boiler 15kw 93% 2 years £859
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Potterton Assure 18kW System Gas Boiler 18kw 93% 2 years £891
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Ravenheat

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Ravenheat WH System 4-24 26kW Gas Boiler 26kw 90.3% 5 years £579
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Ravenheat CS System 4-24 26kW Gas Boiler 26kw 90.3% 2 years £579
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Vaillant

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Vaillant ecoTec plus 612 System Gas Boiler 12kw 89.0% 5 years £820
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Vaillant ecoTec plus 615 System Gas Boiler 15kw 89% 5 years £900
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Vaillant ecoTec plus 618 System Gas Boiler 18kw 89.3% 5 years £950
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Vaillant ecoTec plus 624 System Gas Boiler 24kw 89.4% 5 years £1010
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Vaillant ecoTec plus 630 System Gas Boiler 30kw 89.4% 5 years £1120
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Vaillant ecoTec plus 637 System Gas Boiler 37kw 89.2% 5 years £1270
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Vaillant ecoFIT pure 612 system Gas boiler 12kw 89.3% 5 years £820
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Vaillant ecoFIT pure 615 system Gas boiler 15kw 89.1% 5 years £880
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Vaillant ecoFIT pure 618 system Gas boiler 18kw 89% 5 years £950
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Vaillant ecoFIT pure 625 system Gas boiler 25kw 89% 5 years £1100
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Vaillant ecoFIT pure 630 system Gas boiler 30kw 89.3% 5 years £1256
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Vaillant ecoTEC exclusive Green iQ 627 System Gas Boiler 27kw 94% 7 years £1400
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Vaillant EcoTEC 65kW System Gas Boiler 65kw 95.5% 2 years £3461
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Vaillant EcoTEC 46kW System Gas Boiler 46kw 95.8% 2 years £2745
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Viessmann

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Viessmann B2HB Vitodens 200-W 30kW System Gas Boiler 30kw 97.91% 3 - 5 years £1600
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Viessmann B1HC Vitodens 100-W 19kW System Gas Boiler 19kw 97.92% 5 years £965
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Viessmann B1HC Vitodens 100-W 26kW System Gas Boiler 26kw 97.95% 5 years £900
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Viessmann B1HC Vitodens 100-W 30kW System Gas Boiler 30kw 98.02% 5 years £1100
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Viessmann B1HC Vitodens 100-W 35kW System Gas Boiler 35kw 97.91% 5 years £1200
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Viessmann B2HB Vitodens 200-W 19kW System Gas Boiler 19kw 97.53% 3 - 5 years £1160
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Viessmann B2HB Vitodens 200-W 26kW System Gas Boiler 26kw 97.95% 5 years £1235
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Viessmann B2HB Vitodens 200-W 35kW System Gas Boiler 35kw 97.72% 3 - 5 years £1300
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Vokera

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Vokera Mynute i20 System Gas Boiler 20kw 97% 5 years £550
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Vokera Mynute i30 System Gas Boiler 30kw 97% 5 years £620
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Vokera Mynute 35HE System Gas Boiler 35kw 80.4% 2 years £850
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Vokera Vision 20s System Gas Boiler 20kw 97% 5-7 years £600
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Vokera Vision 25s System Gas Boiler 25kw 97% 5-7 years £650
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Vokera Verve i50 System Gas Boiler 44kw 90% 2 years £1900
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Vokera Evolve S 18kW System Gas Boiler 18kw 94% 7 years £442
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Vokera Evolve S 24kW System Gas Boiler 24kw 94% 7 years £509
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Vokera Evolve S 30kW System Gas Boiler 30kw 94% 7 years £638
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Vokera Evolve S 35kW System Gas Boiler 35kw 94% 7 years £684
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Warmflow

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Warmflow Kabin Pak HE 21 Kw System Oil Boiler 21kw 90.7% 2 years £1417
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Warmflow Kabin Pak HE 26kW System Oil boiler 26kw 90.8% 2 years £1790
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Warmflow Kabin Pak HE 33kW System Oil boiler 33kw 90.7% 2 years £1788
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Warmflow Utility HE 21kW System Oil Boilers 21kw 90.7% 5 years £1376
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Warmflow Utility HE 26kW System Oil boiler 26kw 90.8% 5 years £1610
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Warmflow Utility HE 33kW System Oil boilers 33kw 90.7% 5 years £1510
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Worcester Bosch

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Worcester Bosch Camray Utility 32 System Oil Boiler 32kw 94.2 5 years £2030
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Worcester Bosch Camray Utility 25 System Oil Boiler 25kw 93.2 5 years £1608
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Worcester Bosch Greenstar Danesmoor Utility 18 System Oil Boiler 18 kw 91% 2 years £1463
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Worcester Bosch Greenstar 30CDi Classic System Gas Boiler 30 kw 92% 2 years £1155
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Worcester Bosch Greenstar 24i System Gas Boiler 24kw 94% 2 years £976
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Worcester Bosch Greenstar 12i System Gas Boiler 12kw 94% 2 years £827
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Worcester Bosch Greenstar 9i System Gas Boiler 9kw 93% 5 years £808
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Worcester Bosch Greenstar 15i System Gas Boiler 15kw 94% 5 years £870
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Worcester Bosch Greenstar 18i System Gas Boiler 18kw 94% 5 years £924
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Worcester Bosch Greenstar 21i System Gas Boiler 21kw 94% 5 years £982
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ADDED TO COMPARE
Worcester Bosch Greenstar 27i System Gas Boiler 27kw 92% 5 years £981
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ADDED TO COMPARE
Worcester Bosch Greenstar 30i System Gas Boiler 30kw 92% 5 years £1112
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ADDED TO COMPARE
Worcester Bosch Greenstar 35CDi Classic System Gas Boiler 35kw 92% 2 years £1187
ADDED TO COMPARE
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ADDED TO COMPARE
Worcester Bosch GB162 50kW System Gas Boiler 50kw 92% 2 years £1918
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ADDED TO COMPARE
Worcester Bosch GB162 65kW System Gas Boiler 65kw 93% 2 years £2364
ADDED TO COMPARE
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ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor 18 System Oil Boiler 18kw 91% 2 years £1682
ADDED TO COMPARE
ADD
ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor 25 System Oil Boiler 25kw 90% 2 years £1832
ADDED TO COMPARE
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ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor 32 System Oil Boiler 32kw 91% 2 years £1918
ADDED TO COMPARE
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ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor Utility 25 System Oil Boiler 25kw 90% 2 years £1661
ADDED TO COMPARE
ADD
ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor Utility 32 System Oil Boiler 32kw 91% 2 years £1942
ADDED TO COMPARE
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ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor External 18 System Oil Boiler 18kw 91% 2 years £1947
ADDED TO COMPARE
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ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor External 25 System Oil Boiler 25kw 90% 2 years £2109
ADDED TO COMPARE
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ADDED TO COMPARE
Worcester Bosch Greenstar Danesmoor External 32 System Oil Boiler 32kw 91% 2 years £2431
ADDED TO COMPARE
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ADDED TO COMPARE

Zanussi

Boiler Model kW Options Efficiency Standard Warranty Typical Price Add to Compare
Zanussi Ultra System 15kW Gas Boiler 12kw 89.3% 2 - 10 years £0
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ADDED TO COMPARE
Zanussi Ultra System 18kW Gas Boiler 18kw 92% 2 - 10 years £0
ADDED TO COMPARE
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ADDED TO COMPARE
Zanussi Ultra System 24kW Gas Boiler 24kw 93% 2 - 10 years £0
ADDED TO COMPARE
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ADDED TO COMPARE
Zanussi Ultra System 30kW Gas Boiler 30kw 89.6% 2 - 10 years £0
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ADDED TO COMPARE

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