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Worcester bosch greenstar 8000 - worcester,

Worcester bosch greenstar 8000 - worcester,

£1195.00 · Buy It Now

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Baxi 818 system - 818, boiler

Baxi 818 system - 818, boiler

£1099.00 · Buy It Now

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Vaillant ecofit pure 415 - vaillant,

Vaillant ecofit pure 415 - vaillant,

£234.70 · Buy It Now

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Ideal vogue max - max, system

Ideal vogue max - max, system

£1449.99 · Buy It Now

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Worcestershire bosch erp - bosch,

Worcestershire bosch erp - bosch,

£542.20 · Buy It Now

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Ehc comet electric system - electric,

Ehc comet electric system - electric,

£700.00 · Buy It Now

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Baxi assure gas - baxi,

Baxi assure gas - baxi,

£700.00 · Buy It Now

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Heating inhibitor boiler - 1l,

Heating inhibitor boiler - 1l,

£8.95 · Buy It Now

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Ideal logic system - logic, 15

Ideal logic system - logic, 15

£12.99 · Buy It Now

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Main eco compact system 18 - eco,

Main eco compact system 18 - eco,

£125.99 · Buy It Now

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Worcester greenstar 30i 30ri - worcester,

Worcester greenstar 30i 30ri - worcester,

£56.16 · Buy It Now

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Vaillant system boiler eco - system,

Vaillant system boiler eco - system,

£135.12 · Buy It Now

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Concentrated inhibitor central - inhibitor,

Concentrated inhibitor central - inhibitor,

£7.29 · Buy It Now

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Worcester bosch greenstar - bosch,,

Worcester bosch greenstar - bosch,,

£104.70 · Buy It Now

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Ideal instinct heat kw - ideal, 60

Ideal instinct heat kw - ideal, 60

£1536.70 · Buy It Now

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Worcester bosch greenstar - bosch,

Worcester bosch greenstar - bosch,

£516.70 · Buy It Now

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Worcester bosch 24ri erp - worcester,

Worcester bosch 24ri erp - worcester,

£260.70 · Buy It Now

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Concentrated inhibitor a100 - a100, 1l

Concentrated inhibitor a100 - a100, 1l

£8.79 · Buy It Now

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Ideal logic combi 35 - ideal, logic+

Ideal logic combi 35 - ideal, logic+

£11.99 · Buy It Now

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Concentrated leak sealer - leak,

Concentrated leak sealer - leak,

£7.29 · Buy It Now

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Ferroli leb 9kw electric - ferroli,

Ferroli leb 9kw electric - ferroli,

£699.28 · Buy It Now

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Ideal logic - logic,, esp1

Ideal logic - logic,, esp1

£22.49 · Buy It Now

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Worcester greenstar magnetic - greenstar,

Worcester greenstar magnetic - greenstar,

£208.70 · Buy It Now

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Concentrated inhibitor boiler - inhibitor,

Concentrated inhibitor boiler - inhibitor,

£130.90 · Buy It Now

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Ideal logic system heat - logic, 12

Ideal logic system heat - logic, 12

£19.95 · Buy It Now

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Ideal heating logic - logic, max

Ideal heating logic - logic, max

£1093.78 · Buy It Now

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Heating inhibitor 500ml - heating,

Heating inhibitor 500ml - heating,

£7.99 · Buy It Now

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Worcester greenstar 30i erp - worcester,

Worcester greenstar 30i erp - worcester,

£1499.00 · Buy It Now

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Worcester greenstar return - greenstar,

Worcester greenstar return - greenstar,

£119.99 · Buy It Now

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Main eco compact system - 15, 18

Main eco compact system - 15, 18

£59.99 · Buy It Now

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Worcester greenstar erp 25i - erp,

Worcester greenstar erp 25i - erp,

£120.99 · Buy It Now

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Baxi 830 system 30kw boiler - 830, &

Baxi 830 system 30kw boiler - 830, &

£1450.00 · Buy It Now

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Ideal logic c24 - logic, c35

Ideal logic c24 - logic, c35

£79.99 · Buy It Now

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Baxi 818 824 system - &,

Baxi 818 824 system - &,

£90.00 · Buy It Now

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Vaillant eco tec plus - plus, system

Vaillant eco tec plus - plus, system

£414.70 · Buy It Now

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Baxi system boiler - system,

Baxi system boiler - system,

£934.99 · Buy It Now

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Ltr sentinel central heating - central,

Ltr sentinel central heating - central,

£8.12 · Buy It Now

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Greenstar worcester bosch - ,

Greenstar worcester bosch - ,

£6.50 · Buy It Now

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Worcester–Baxi–Vaillant–

Worcester–Baxi–Vaillant–

£400.00 · Buy It Now

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Potterton gold combi main - potterton,

Potterton gold combi main - potterton,

£189.99 · Buy It Now

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Baxi 818 824 system 825 - baxi, &

Baxi 818 824 system 825 - baxi, &

£129.99 · Buy It Now

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Fernox central heating - fernox,

Fernox central heating - fernox,

£13.59 · Buy It Now

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Ideal lpg conversion kit - ng-lpg,

Ideal lpg conversion kit - ng-lpg,

£47.50 · Buy It Now

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Boiler filter hts afm 1200 - filter,

Boiler filter hts afm 1200 - filter,

£47.49 · Buy It Now

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Baxi system 28 - 15, 24

Baxi system 28 - 15, 24

£8.65 · Buy It Now

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Ehc comet electric - electric, system

Ehc comet electric - electric, system

£771.70 · Buy It Now

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Worcester greenstar 27i erp - worcester,

Worcester greenstar 27i erp - worcester,

£1299.00 · Buy It Now

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Boiler central heating system - boiler,

Boiler central heating system - boiler,

£8.79 · Buy It Now

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Brand new fernox power - brand,

Brand new fernox power - brand,

£414.70 · Buy It Now

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Baxi pcb system kit - baxi,

Baxi pcb system kit - baxi,

£42.30 · Buy It Now

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Ideal logic 215664 s15 - 15, kw

Ideal logic 215664 s15 - 15, kw

£799.99 · Buy It Now

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Worcester greenstar cdi - 30,

Worcester greenstar cdi - 30,

£54.00 · Buy It Now

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Concentrated inhibitor boiler - concentrated,

Concentrated inhibitor boiler - concentrated,

£7.65 · Buy It Now

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Worcester magnetic system - worcester,

Worcester magnetic system - worcester,

£149.99 · Buy It Now

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Worcester bosch control box - worcester,

Worcester bosch control box - worcester,

£260.70 · Buy It Now

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Baxi system erp boiler - 12,

Baxi system erp boiler - 12,

£14.25 · Buy It Now

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Main eco compact system - main, 15

Main eco compact system - main, 15

£99.99 · Buy It Now

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Main eco compact system 18 - eco,

Main eco compact system 18 - eco,

£66.00 · Buy It Now

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Ideal primary pcb - primary, 177661

Ideal primary pcb - primary, 177661

£78.70 · Buy It Now

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Worcester greenstar 30i 30ri - 30i,

Worcester greenstar 30i 30ri - 30i,

£53.35 · Buy It Now

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Heating power flush 500ml - heating,

Heating power flush 500ml - heating,

£8.99 · Buy It Now

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Aqua system arb12 5 bar - arb12,

Aqua system arb12 5 bar - arb12,

£26.70 · Buy It Now

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Main combi 30he system 18he - &,

Main combi 30he system 18he - &,

£30.00 · Buy It Now

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Baxi system 24 28 - system,

Baxi system 24 28 - system,

£8.95 · Buy It Now

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Ideal logic combi plus - logic, 24

Ideal logic combi plus - logic, 24

£60.99 · Buy It Now

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Worcester greenstar combi - greenstar,

Worcester greenstar combi - greenstar,

£14.99 · Buy It Now

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Concentrated inhibitor central - inhibitor,

Concentrated inhibitor central - inhibitor,

£32.49 · Buy It Now

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Altecnic heating expansion - heating,

Altecnic heating expansion - heating,

£36.18 · Buy It Now

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Worcester greenstar mini - worcester,

Worcester greenstar mini - worcester,

£144.99 · Buy It Now

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Heating inhibitor boiler - inhibitor, 5l

Heating inhibitor boiler - inhibitor, 5l

£44.79 · Buy It Now

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A100 concentrated inhibitor - a100, 1l

A100 concentrated inhibitor - a100, 1l

£8.79 · Buy It Now

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Vaillant ecofit pure 418 - ecofit,

Vaillant ecofit pure 418 - ecofit,

£260.70 · Buy It Now

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Baxi combi 80e eco 80 - 80,

Baxi combi 80e eco 80 - 80,

£9.99 · Buy It Now

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Worcester greenstar 38 - 29, 34

Worcester greenstar 38 - 29, 34

£17.99 · Buy It Now

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Baxi ecoblue heat system - heat,

Baxi ecoblue heat system - heat,

£44.99 · Buy It Now

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Magnetic boiler filter 22mm - magnetic,

Magnetic boiler filter 22mm - magnetic,

£46.95 · Buy It Now

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Worcester bosch greenstar - worcester,

Worcester bosch greenstar - worcester,

£31.90 · Buy It Now

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Motorised zone valve - motorised,

Motorised zone valve - motorised,

£31.00 · Buy It Now

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Ideal logic plus system - plus, 18

Ideal logic plus system - plus, 18

£13.02 · Buy It Now

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Danfoss port system - 2,

Danfoss port system - 2,

£89.10 · Buy It Now

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Vaillant 0020237676 ecofit - vaillant,

Vaillant 0020237676 ecofit - vaillant,

£28.77 · Buy It Now

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Fernox tf1 sigma - mini, compact

Fernox tf1 sigma - mini, compact

£45.00 · Buy It Now

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Worcester greenstar 30i 30ri - worcester,

Worcester greenstar 30i 30ri - worcester,

£56.16 · Buy It Now

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Baxi assure gas system boiler - gas,

Baxi assure gas system boiler - gas,

£799.99 · Buy It Now

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Adey magnaclean 22mm heating - magnaclean,

Adey magnaclean 22mm heating - magnaclean,

£24.99 · Buy It Now

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Ideal exclusive combi - ideal,

Ideal exclusive combi - ideal,

£1018.99 · Buy It Now

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Main eco compact - eco, 18

Main eco compact - eco, 18

£49.99 · Buy It Now

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C100 concentrated inhibitor - c100, 5l

C100 concentrated inhibitor - c100, 5l

£39.59 · Buy It Now

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Boiler filter 22mm - boiler, magnetic

Boiler filter 22mm - boiler, magnetic

£39.95 · Buy It Now

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Grant vortex eco system - grant,

Grant vortex eco system - grant,

£1750.00 · Buy It Now

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Main combi system - main, he

Main combi system - main, he

£3.99 · Buy It Now

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Sentinel x100 inhibitor system - x100,

Sentinel x100 inhibitor system - x100,

£15.99 · Buy It Now

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Adey magna clean micro - magna,

Adey magna clean micro - magna,

£65.00 · Buy It Now

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Worcester bosch greenstar - worcester,

Worcester bosch greenstar - worcester,

£7.00 · Buy It Now

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Vaillant ecotec plus - 635, 35kw

Vaillant ecotec plus - 635, 35kw

£1960.00 · Buy It Now

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Vaillant ecofit pure 415 - ecofit,

Vaillant ecofit pure 415 - ecofit,

£260.70 · Buy It Now

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📊96 listings · from £3.99 · avg £289.27

Browse 96 system boiler listings currently in our index. Prices range from £3.99 to £1960, with an average of £289.27. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about system boiler →

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Everything you need to know about system boiler

Whether you are looking for a brand-new or second-hand system boiler, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.99, while premium listings can reach £1960 — giving you a wide budget spread to work with. The average price of £289.27 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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