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Vaillant 181050 10l expansion - vaillant,

Vaillant 181050 10l expansion - vaillant,

€25.00
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Vaillant standard horizontal - vaillant,

Vaillant standard horizontal - vaillant,

€169.45
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Vaillant wall mounted - vaillant, central

Vaillant wall mounted - vaillant, central

€516.70
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Vaillant 0020219517 horizontal - vaillant,

Vaillant 0020219517 horizontal - vaillant,

€84.00
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Vaillant grundfoss pump 160977 - grundfoss,

Vaillant grundfoss pump 160977 - grundfoss,

€52.70
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Vaillant 065097 065119 - vaillant,

Vaillant 065097 065119 - vaillant,

€90.00
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Vaillant ecomax 835e diverter - vaillant,

Vaillant ecomax 835e diverter - vaillant,

€68.30
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Vaillant grundfos vp5 ze - vaillant,

Vaillant grundfos vp5 ze - vaillant,

€52.69
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Vaillant ecomax 835 - 835, e

Vaillant ecomax 835 - 835, e

€83.89
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Vaillant ecomax 835e fan - ecomax,

Vaillant ecomax 835e fan - ecomax,

€31.89
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Vaillant timeswitch 150 - timeswitch,

Vaillant timeswitch 150 - timeswitch,

€44.38
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Vaillant 22mm advanced - 22mm,

Vaillant 22mm advanced - 22mm,

€167.10
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Vaillant genuine vertical - genuine, flue

Vaillant genuine vertical - genuine, flue

€115.10
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Vaillant boiler pcb - pcb, ecotec

Vaillant boiler pcb - pcb, ecotec

€58.99
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Vaillant 0020135131 main - vaillant,

Vaillant 0020135131 main - vaillant,

€79.99
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Vaillant ecotec plus - ,

Vaillant ecotec plus - ,

€100.00
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Vaillant spacing frame stand - vaillant,

Vaillant spacing frame stand - vaillant,

€20.43
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Vaillant pro return group - 28,

Vaillant pro return group - 28,

€31.90
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Vaillant filter advance boiler - filter,

Vaillant filter advance boiler - filter,

€394.30
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Vaillant boiler flue job - boiler,,

Vaillant boiler flue job - boiler,,

€52.70
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Vaillant boiler heat exchanger - heat,

Vaillant boiler heat exchanger - heat,

€338.20
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Vaillant ecotec plus front - vaillant,

Vaillant ecotec plus front - vaillant,

€31.90
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Vaillant ecotec plas pro - &,

Vaillant ecotec plas pro - &,

€48.52
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Vaillant ecotec plus - plus, &

Vaillant ecotec plus - plus, &

€34.99
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Vaillant ecofit pure 625 - ecofit, heat

Vaillant ecofit pure 625 - ecofit, heat

€440.20
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Vaillant ecotec plus 824 - ecotec,

Vaillant ecotec plus 824 - ecotec,

€38.99
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Vaillant 0020010292 handle - 0020010292,

Vaillant 0020010292 handle - 0020010292,

€10.00
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Brand new vaillant - vaillant, ecotec

Brand new vaillant - vaillant, ecotec

€83.90
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Gas boiler installation all - boiler, installation,

Gas boiler installation all - boiler, installation,

€567.70
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Vaillant ecotec plus 612 824 - ecotec,

Vaillant ecotec plus 612 824 - ecotec,

€42.89
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Vaillant ecotec plus 612 - ecotec, 615

Vaillant ecotec plus 612 - ecotec, 615

€35.00
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Vaillant ecotec pro - vaillant, 28

Vaillant ecotec pro - vaillant, 28

€77.93
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Vaillant ecotec pro - 28, vuw

Vaillant ecotec pro - 28, vuw

€60.00
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0020081567 condensate trap - 0020081567,

0020081567 condensate trap - 0020081567,

€16.15
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Vaillant boiler pump - boiler,

Vaillant boiler pump - boiler,

€71.50
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Vaillant ecotec boiler - ecotec,

Vaillant ecotec boiler - ecotec,

€38.61
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Vaillant 0020223472 vertical - 0020223472,

Vaillant 0020223472 vertical - 0020223472,

€119.00
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Vaillant service kit - vaillant,

Vaillant service kit - vaillant,

€21.50
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Vaillant ecotec plus - vaillant,

Vaillant ecotec plus - vaillant,

€414.70
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Vaillant 0020035222 gas valve - vaillant,

Vaillant 0020035222 gas valve - vaillant,

€63.10
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Vaillant ecotec pro - vaillant,

Vaillant ecotec pro - vaillant,

€33.90
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Vaillant ecotec pro 28 - ecotec, 24,

Vaillant ecotec pro 28 - ecotec, 24,

€58.20
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Vaillant ecotec plus gas - ecotec, valve

Vaillant ecotec plus gas - ecotec, valve

€127.09
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Vaillant ecotec plus - plus, 824

Vaillant ecotec plus - plus, 824

€48.99
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Vaillant ecotec plus 824 - ecotec,

Vaillant ecotec plus 824 - ecotec,

€10.57
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Vaillant ecotec plus 824 - 824, 831

Vaillant ecotec plus 824 - 824, 831

€35.54
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Vaillant ecotec plus 824 vuw - plus,

Vaillant ecotec plus 824 vuw - plus,

€16.51
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Vaillant ecotec plus - vaillant,

Vaillant ecotec plus - vaillant,

€149.99
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Vaillant vsmart wireless - vaillant, room

Vaillant vsmart wireless - vaillant, room

€89.10
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Vaillant ecofit sustain 418 - ecofit,

Vaillant ecofit sustain 418 - ecofit,

€373.90
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Vaillant ecofit pure boiler - pure,

Vaillant ecofit pure boiler - pure,

€39.98
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Boiler flue rain - snow, cover

Boiler flue rain - snow, cover

€13.99
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Vaillant ecotec pro - ecotec,

Vaillant ecotec pro - ecotec,

€34.99
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Vaillant boiler time - time, switch

Vaillant boiler time - time, switch

€39.95
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Vaillant ecotec pro boiler - vaillant,

Vaillant ecotec pro boiler - vaillant,

€59.99
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Boiler flue rain snow - rain,

Boiler flue rain snow - rain,

€12.74
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Eco fit pure 415 boiler - fit,

Eco fit pure 415 boiler - fit,

€291.90
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Vaillant ecotec plus boiler - vaillant,

Vaillant ecotec plus boiler - vaillant,

€465.70
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New vaillant degree boiler - new,

New vaillant degree boiler - new,

€34.00
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Vaillant ecotec pro - ecotec,

Vaillant ecotec pro - ecotec,

€49.23
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Vaillant cover 180940 brand - vaillant,

Vaillant cover 180940 brand - vaillant,

€10.00
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Vaillant eco tec - tec, plus

Vaillant eco tec - tec, plus

€414.70
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Vaillant ecotec pro 28 - vaillant, &

Vaillant ecotec pro 28 - vaillant, &

€10.99
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Vaillant ecotec plus 612 - 612, 615

Vaillant ecotec plus 612 - 612, 615

€41.61
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Vaillant roof flue slate - roof,

Vaillant roof flue slate - roof,

€21.50
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Vaillant 180985 ecotec plus - vaillant,

Vaillant 180985 ecotec plus - vaillant,

€29.99
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Vaillant ecotec plus 612 - vaillant,

Vaillant ecotec plus 612 - vaillant,

€120.00
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Vaillant ecotec plus pro - ecotec, plus,

Vaillant ecotec plus pro - ecotec, plus,

€15.99
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Vaillant ecotec plus - 824, 831

Vaillant ecotec plus - 824, 831

€89.29
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Vaillant 0020215129 condensate - vaillant,

Vaillant 0020215129 condensate - vaillant,

€3.44
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Vaillant ecotec plus boiler - plus,

Vaillant ecotec plus boiler - plus,

€79.99
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Vaillant ecotec pro plus - pro,

Vaillant ecotec pro plus - pro,

€82.47
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Vaillant 178983 boiler pump - 178983,

Vaillant 178983 boiler pump - 178983,

€49.99
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New vaillant degree boiler - new, 45

New vaillant degree boiler - new, 45

€25.00
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Vaillant eco tec - vaillant, spacer

Vaillant eco tec - vaillant, spacer

€9.18
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Vaillant vr71 wiring - vr71, centre

Vaillant vr71 wiring - vr71, centre

€120.30
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Vaillant ecotec plus pcb - vaillant,

Vaillant ecotec plus pcb - vaillant,

€73.50
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Vaillant 303910 flue bend new - 303910,

Vaillant 303910 flue bend new - 303910,

€29.99
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Grunfos vaillant vuw - grunfos,

Grunfos vaillant vuw - grunfos,

€42.99
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Vaillant 0020048969 control - vaillant,

Vaillant 0020048969 control - vaillant,

€14.99
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Vaillant vr71 wiring centre - wiring,

Vaillant vr71 wiring centre - wiring,

€189.99
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New vaillant degree boiler - vaillant, 45

New vaillant degree boiler - vaillant, 45

€20.00
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Vaillant boiler service valves

Vaillant boiler service valves

€31.90
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Vaillant ecotec plus 824 - vaillant, 831

Vaillant ecotec plus 824 - vaillant, 831

€69.89
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Vaillant 0020132764 pcb - vaillant,

Vaillant 0020132764 pcb - vaillant,

€100.00
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Vaillant 0020038679 boiler - 0020038679,

Vaillant 0020038679 boiler - 0020038679,

€13.77
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Vaillant ambisense vr920 - ambisense,

Vaillant ambisense vr920 - ambisense,

€125.50
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Vaillant ecotec pro - vaillant,

Vaillant ecotec pro - vaillant,

€21.57
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Boiler flue rain - flue, cover

Boiler flue rain - flue, cover

€11.68
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Vaillant ecotec pro vuw - ecotec, 30

Vaillant ecotec pro vuw - ecotec, 30

€66.00
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Vaillant 150 analogue - vaillant,

Vaillant 150 analogue - vaillant,

€12.94
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Vaillant ecotec pro plus - vaillant, pro/plus

Vaillant ecotec pro plus - vaillant, pro/plus

€79.99
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Vaillant ecotec pro - vaillant,

Vaillant ecotec pro - vaillant,

€9.84
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Vaillant 0020135129 genuine - vaillant,

Vaillant 0020135129 genuine - vaillant,

€249.99
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Vaillant ecotec plus 612 615 - vaillant,

Vaillant ecotec plus 612 615 - vaillant,

€110.99
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Vaillant 0020135138 fan - vaillant,

Vaillant 0020135138 fan - vaillant,

€78.70
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📊96 listings · from €3.44 · avg €96.45

Browse 96 vaillant boiler listings currently in our index. Prices range from €3.44 to €567.7, with an average of €96.45. 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 €3.44, while premium listings can reach €567.7 — giving you a wide budget spread to work with. The average price of €96.45 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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