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Vaillant residential boiler - residential,

Vaillant residential boiler - residential,

€60.53
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Vaillant ecofit pure - ecofit,

Vaillant ecofit pure - ecofit,

€208.70
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Vaillant ecotec pro pluserp - pro,

Vaillant ecotec pro pluserp - pro,

€73.50
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Vaillant 178983 boiler - boiler, pump

Vaillant 178983 boiler - boiler, pump

€49.99
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Vaillant boiler flue air - vaillant, vent

Vaillant boiler flue air - vaillant, vent

€78.70
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Vaillant advance boiler - vaillant,

Vaillant advance boiler - vaillant,

€82.58
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Vaillant pcb board 0010028086 - vaillant,

Vaillant pcb board 0010028086 - vaillant,

€134.86
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Vaillant flue kit 0020219517 - flue,

Vaillant flue kit 0020219517 - flue,

€86.83
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Various boiler parts - boiler, for

Various boiler parts - boiler, for

€1536.70
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Vaillant boiler flue - vaillant,

Vaillant boiler flue - vaillant,

€64.05
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Vaillant 103417 clip - vaillant,

Vaillant 103417 clip - vaillant,

€10.80
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Vaillant ups3 65 - vaillant, 15-50/65

Vaillant ups3 65 - vaillant, 15-50/65

€750.00
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Vaillant 0020116882 timeswitch - 0020116882,

Vaillant 0020116882 timeswitch - 0020116882,

€65.54
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Vaillant ecotec plus - ecotec,

Vaillant ecotec plus - ecotec,

€100.00
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Vaillant ecotec plus 824 831 - vaillant,

Vaillant ecotec plus 824 831 - vaillant,

€62.15
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Vaillant combi boiler - vaillant, ecofit

Vaillant combi boiler - vaillant, ecofit

€104.70
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Vaillant ecotec boiler - vaillant,

Vaillant ecotec boiler - vaillant,

€38.61
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Vaillant eco level - vaillant,

Vaillant eco level - vaillant,

€103.66
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Vaillant ecotec plus 824 - vaillant,

Vaillant ecotec plus 824 - vaillant,

€12.75
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Boiler flue rain snow cover - rain,

Boiler flue rain snow cover - rain,

€9.99
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Vaillant ecotec plus - ecotec, vuw

Vaillant ecotec plus - ecotec, vuw

€8.39
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Vaillant vr100 heating system - vr100,

Vaillant vr100 heating system - vr100,

€62.27
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Vaillant ecotec plus - &,

Vaillant ecotec plus - &,

€39.99
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Vaillant ecotec plus 824 831 - vaillant,

Vaillant ecotec plus 824 831 - vaillant,

€48.99
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Vaillant gas regulating - vaillant, valve

Vaillant gas regulating - vaillant, valve

€104.70
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Vaillant 303903 flue extension - flue,

Vaillant 303903 flue extension - flue,

€30.39
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Vaillant boiler gas valve - vaillant,

Vaillant boiler gas valve - vaillant,

€90.00
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Vaillant time switch 150 - vaillant,

Vaillant time switch 150 - vaillant,

€64.99
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Vaillant 178983 pump ecotec - 178983,

Vaillant 178983 pump ecotec - 178983,

€54.99
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Vaillant terminal plume - terminal,

Vaillant terminal plume - terminal,

€65.99
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Vaillant standard horizontal - vaillant,

Vaillant standard horizontal - vaillant,

€169.45
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Vaillant gas section - vaillant, h-gas

Vaillant gas section - vaillant, h-gas

€75.58
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Vaillant boiler control board - boiler,

Vaillant boiler control board - boiler,

€57.90
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Vaillant dhw plate heat - dhw,

Vaillant dhw plate heat - dhw,

€68.30
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Vaillant ecotec pro 28 - vaillant, 24

Vaillant ecotec pro 28 - vaillant, 24

€21.57
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Vaillant ecotec pro - pro, &

Vaillant ecotec pro - pro, &

€39.99
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Vaillant ecotec plus 824 - vaillant, 831

Vaillant ecotec plus 824 - vaillant, 831

€36.00
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Vaillant ecotec pro - ecotec, 24

Vaillant ecotec pro - ecotec, 24

€38.40
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Vaillant ecotec plus - ecotec, 831

Vaillant ecotec plus - ecotec, 831

€32.56
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Gas boiler installation all - gas,

Gas boiler installation all - gas,

€567.70
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Vaillant 0020132682 diverter - vaillant,

Vaillant 0020132682 diverter - vaillant,

€31.90
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Vaillant 0020132683 diverter - vaillant,

Vaillant 0020132683 diverter - vaillant,

€49.49
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Vaillant ecotec plus - plus, 824

Vaillant ecotec plus - plus, 824

€10.50
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Vaillant vr71 heating system - vr71,

Vaillant vr71 heating system - vr71,

€160.00
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Vaillant 0020020015 - vaillant,

Vaillant 0020020015 - vaillant,

€37.10
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Vaillant 0020219517 standard - vaillant,

Vaillant 0020219517 standard - vaillant,

€78.70
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Vaillant ecotec plus 624 831 - ecotec,

Vaillant ecotec plus 624 831 - ecotec,

€60.99
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Vaillant ecotec plus 824 - x,

Vaillant ecotec plus 824 - x,

€35.00
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Vaillant ecotec plus - vaillant,

Vaillant ecotec plus - vaillant,

€19.99
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Vaillant 306741 obsolete time - 306741,

Vaillant 306741 obsolete time - 306741,

€52.24
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Vaillant ecotec plus - vaillant,

Vaillant ecotec plus - vaillant,

€7.45
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Vaillant digital time - digital, switch

Vaillant digital time - digital, switch

€30.00
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Vaillant ecotec plus 824 831 - vaillant,

Vaillant ecotec plus 824 831 - vaillant,

€14.30
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Vaillant ecotec plus - ecotec, vuw

Vaillant ecotec plus - ecotec, vuw

€19.99
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Vaillant vr70 wiring center - vaillant,

Vaillant vr70 wiring center - vaillant,

€68.30
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Vaillant ecotec plus - plus, /

Vaillant ecotec plus - plus, /

€54.94
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Vaillant ecotec plus - plus, 615

Vaillant ecotec plus - plus, 615

€18.29
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Vaillant ecotec pro 28 - pro, 24

Vaillant ecotec pro 28 - pro, 24

€34.00
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Boiler flue rain snow cover - flue,

Boiler flue rain snow cover - flue,

€9.99
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Vaillant 0020010292 handle - vaillant,

Vaillant 0020010292 handle - vaillant,

€10.00
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Vaillant ecofit pure boiler - ecofit,

Vaillant ecofit pure boiler - ecofit,

€39.84
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Vaillant turbomax microswitch - turbomax,

Vaillant turbomax microswitch - turbomax,

€17.22
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Vaillant ecotec pro - ecotec, pro/plus

Vaillant ecotec pro - ecotec, pro/plus

€83.99
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Vaillant ecotec pro vuw - vaillant,

Vaillant ecotec pro vuw - vaillant,

€14.99
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Vaillant ecotec pro 28 - pro, 24

Vaillant ecotec pro 28 - pro, 24

€42.42
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Vaillant time switch 130 24hr - vaillant,

Vaillant time switch 130 24hr - vaillant,

€59.99
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Vaillant ecotec plus 824 831 - vaillant,

Vaillant ecotec plus 824 831 - vaillant,

€39.99
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Vaillant 181051 expansion - 181051,

Vaillant 181051 expansion - 181051,

€41.79
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Vaillant sustain 825 - vaillant,

Vaillant sustain 825 - vaillant,

€57.99
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Vaillant 0020136638 boiler - vaillant,

Vaillant 0020136638 boiler - vaillant,

€44.99
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Vaillant ecotec plus - ecotec, 824

Vaillant ecotec plus - ecotec, 824

€42.49
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Vaillant ecotec plus electrode - vaillant,

Vaillant ecotec plus electrode - vaillant,

€15.68
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Vaillant ecotec spacing - , frame

Vaillant ecotec spacing - , frame

€6.52
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Boiler flue rain snow cover - snow,

Boiler flue rain snow cover - snow,

€7.38
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Vaillant ecotec plus pro - plus,

Vaillant ecotec plus pro - plus,

€9.75
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Vaillant ecotec pro pcb - pro, 24/28

Vaillant ecotec pro pcb - pro, 24/28

€99.50
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Vaillant ecotec flexible - vaillant,

Vaillant ecotec flexible - vaillant,

€13.99
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Vaillant vr33 opentherm module - opentherm,

Vaillant vr33 opentherm module - opentherm,

€187.90
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Vaillant ecotec plus electrode - vaillant,

Vaillant ecotec plus electrode - vaillant,

€14.99
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Vaillant flue elbow 100 - elbow, 60/100

Vaillant flue elbow 100 - elbow, 60/100

€29.82
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Vaillant ecotec vuw pro - ecotec,

Vaillant ecotec vuw pro - ecotec,

€8.39
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Vaillant 0020135131 ecotec - 0020135131,

Vaillant 0020135131 ecotec - 0020135131,

€349.99
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Vaillant ecotec expansion - vaillant,

Vaillant ecotec expansion - vaillant,

€49.99
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Boiler flue rain snow cover - flue,

Boiler flue rain snow cover - flue,

€8.08
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Vaillant ecotec plus vuw 824 - ecotec,

Vaillant ecotec plus vuw 824 - ecotec,

€10.95
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Vaillant ecotec pro - ecotec, 24

Vaillant ecotec pro - ecotec, 24

€37.48
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Vaillant ecotec plus 612 615 - plus,

Vaillant ecotec plus 612 615 - plus,

€9.75
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Vaillant ecotec pro vuw - vaillant,

Vaillant ecotec pro vuw - vaillant,

€60.00
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Vaillant ecotec valve set - vaillant,

Vaillant ecotec valve set - vaillant,

€52.70
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Vaillant ecotec pro - ecotec, &

Vaillant ecotec pro - ecotec, &

€33.90
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Vaillant ecotec plus front - ecotec,

Vaillant ecotec plus front - ecotec,

€104.70
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Vaillant flue extension - flue,

Vaillant flue extension - flue,

€29.99
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Vaillant boiler magnetic - vaillant,

Vaillant boiler magnetic - vaillant,

€104.70
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Vaillant ecotec plus - ecotec,

Vaillant ecotec plus - ecotec,

€289.99
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Vaillant 181051 expansion - 181051,

Vaillant 181051 expansion - 181051,

€34.99
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Vaillant 193593 fan for ecotec - fan,

Vaillant 193593 fan for ecotec - fan,

€79.64
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📊96 listings · from €6.52 · avg €85.96

Browse 96 vaillant boiler listings currently in our index. Prices range from €6.52 to €1536.7, with an average of €85.96. 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 vaillant boiler →

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Everything you need to know about vaillant boiler

Whether you are looking for a brand-new or second-hand vaillant 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 €6.52, while premium listings can reach €1536.7 — giving you a wide budget spread to work with. The average price of €85.96 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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