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Camplux portable gas water - portable,

Camplux portable gas water - portable,

£238.99
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18l propane gas tankless - 8l-18l,

18l propane gas tankless - 8l-18l,

£70.99
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18l propane gas tankless - 8l-18l,

18l propane gas tankless - 8l-18l,

£72.37
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18l lpg propane gas - propane,

18l lpg propane gas - propane,

£107.16
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18l propane gas tankless - 8l-18l,

18l propane gas tankless - 8l-18l,

£83.99
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10l 12l 16l 18l instant - 10l/12l/16l/18l, gas

10l 12l 16l 18l instant - 10l/12l/16l/18l, gas

£89.99
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Lpg instantaneous water - instantaneous, heater

Lpg instantaneous water - instantaneous, heater

£89.99
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£79.99
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New 18l instant - new,

New 18l instant - new,

£89.99
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Portable lpg hot water - hot,

Portable lpg hot water - hot,

£63.98
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Portable lpg hot water - portable,

Portable lpg hot water - portable,

£63.98
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18l tankless gas - tankless, water

18l tankless gas - tankless, water

£112.80
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18l tankless gas water - 18l,

18l tankless gas water - 18l,

£107.99
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18l propane gas tankless - 18l,

18l propane gas tankless - 18l,

£113.76
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20l lpg instant water - 20l,

20l lpg instant water - 20l,

£127.68
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Portable gas water heater - portable,

Portable gas water heater - portable,

£80.99
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Lpg 16l portable - 16l, instant

Lpg 16l portable - 16l, instant

£105.99
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10l portable instant - portable, gas

10l portable instant - portable, gas

£89.99
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Tankless lpg propane water - tankless,

Tankless lpg propane water - tankless,

£152.99
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18l instant gas hot water - 8-18l,

18l instant gas hot water - 8-18l,

£77.99
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20l tankless propane - 20l, gas

20l tankless propane - 20l, gas

£98.99
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Camplux tankless propane - camplux,

Camplux tankless propane - camplux,

£254.99
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18l propane gas tankless - 8l-18l,

18l propane gas tankless - 8l-18l,

£95.99
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Tankless gas water heater - tankless,

Tankless gas water heater - tankless,

£80.99
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18l propane gas tankless - 8l-18l,

18l propane gas tankless - 8l-18l,

£87.99
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10l portable instant gas - instant, hot

10l portable instant gas - instant, hot

£87.99
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Instant hot water - hot,

Instant hot water - hot,

£89.99
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Hippo showers portable gas - showers,

Hippo showers portable gas - showers,

£363.70
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Worcester bosch keyless - worcester,

Worcester bosch keyless - worcester,

£94.30
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Tankless gas water heater - tankless,

Tankless gas water heater - tankless,

£80.99
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12kw lpg hot water - lpg,

12kw lpg hot water - lpg,

£80.99
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Camplux mobile gas - camplux,

Camplux mobile gas - camplux,

£259.99
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10l portable instant gas hot - instant,

10l portable instant gas hot - instant,

£89.99
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Min propane instant water - propane,

Min propane instant water - propane,

£88.80
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Hot caravan water - hot, 16l

Hot caravan water - hot, 16l

£108.99
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10l instant propane gas water - 10l,

10l instant propane gas water - 10l,

£94.80
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10pcs 50mm gas - 50mm, heater

10pcs 50mm gas - 50mm, heater

£3.79
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Camplux propane gas - gas, tankless

Camplux propane gas - gas, tankless

£219.99
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20l portable camping - portable,

20l portable camping - portable,

£132.99
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Camplux 10l portable outdoor - 10l,

Camplux 10l portable outdoor - 10l,

£254.99
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12l portable gas hot - portable,

12l portable gas hot - portable,

£100.80
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Portable lpg hot water - portable,

Portable lpg hot water - portable,

£63.98
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Chaffoteaux britony gas - britony,

Chaffoteaux britony gas - britony,

£549.99
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New ariston next evo ng - new,

New ariston next evo ng - new,

£396.99
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Static caravan deluxe water - caravan,

Static caravan deluxe water - caravan,

£249.99
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10l portable instant gas hot - portable,

10l portable instant gas hot - portable,

£259.99
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Vaillant horizontal flue - vaillant,

Vaillant horizontal flue - vaillant,

£52.70
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Genuine worcester bosch return - genuine,

Genuine worcester bosch return - genuine,

£89.09
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Vaillant 22mm boiler filter - 22mm,

Vaillant 22mm boiler filter - 22mm,

£151.50
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Boiler box pipework cover - boiler,

Boiler box pipework cover - boiler,

£36.50
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Vaillant standard horizontal - vaillant,

Vaillant standard horizontal - vaillant,

£63.10
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Vaillant 100 standard - vaillant,

Vaillant 100 standard - vaillant,

£68.00
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Baxi main 100mm - 60/100mm, standard

Baxi main 100mm - 60/100mm, standard

£74.99
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Ideal 175571 burner kit bnib - ideal,

Ideal 175571 burner kit bnib - ideal,

£95.00
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Worcester keyless filling link - worcester,

Worcester keyless filling link - worcester,

£18.29
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Multifit flue extension - multifit,

Multifit flue extension - multifit,

£89.10
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Baxi main heat exchanger - baxi,

Baxi main heat exchanger - baxi,

£82.86
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Worcester greenstar 24i - 24i, 28i

Worcester greenstar 24i - 24i, 28i

£84.99
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Pcs gas water - gas,

Pcs gas water - gas,

£8.79
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Worcester greenstar junior 24i - greenstar,

Worcester greenstar junior 24i - greenstar,

£84.99
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Vaillant degree boiler - 45,

Vaillant degree boiler - 45,

£26.70
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Vaillant ecotec pro boiler - vaillant,

Vaillant ecotec pro boiler - vaillant,

£64.99
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40pcs 50mm gas - gas, heater

40pcs 50mm gas - gas, heater

£8.39
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Worcester boiler return unit - worcester,

Worcester boiler return unit - worcester,

£104.70
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Vaillant ecotec plus 624 630 - ecotec,

Vaillant ecotec plus 624 630 - ecotec,

£90.00
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Gas water heater pressure - gas,

Gas water heater pressure - gas,

£4.03
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Drayton port za5 bgmvsp2 - drayton, 2

Drayton port za5 bgmvsp2 - drayton, 2

£49.99
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Drayton ma1 mid position head - drayton,

Drayton ma1 mid position head - drayton,

£59.89
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20pcs 50mm gas - 50mm, heater

20pcs 50mm gas - 50mm, heater

£5.99
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Baxi plate heat exchanger - plate,

Baxi plate heat exchanger - plate,

£20.43
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Pactrol full sequence - sequence, gas

Pactrol full sequence - sequence, gas

£75.99
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Ideal vertical flue and clip - vertical,

Ideal vertical flue and clip - vertical,

£89.10
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Pcs gas water - 12,

Pcs gas water - 12,

£8.08
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Vaillant ecotec plus - plus, boiler

Vaillant ecotec plus - plus, boiler

£79.99
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Grundfos 93074168 ups4 - grundfos,

Grundfos 93074168 ups4 - grundfos,

£81.00
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Brand new worcester - brand,

Brand new worcester - brand,

£47.50
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Worcester bosch flue - worcester,

Worcester bosch flue - worcester,

£27.74
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Worcester bosch telescopic - worcester,

Worcester bosch telescopic - worcester,

£83.90
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Vaillant degree elbow bend - vaillant,

Vaillant degree elbow bend - vaillant,

£26.70
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Glowworm easicom 28 c - 24, &

Glowworm easicom 28 c - 24, &

£77.99
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Worcester 7716191086 greenstar - 7716191086,

Worcester 7716191086 greenstar - 7716191086,

£69.99
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Vaillant ecotec plus 824 - plus,

Vaillant ecotec plus 824 - plus,

£102.50
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Glowworm cxi 12 15 18 - 30,

Glowworm cxi 12 15 18 - 30,

£74.99
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Potterton profile 30e - potterton, 40e

Potterton profile 30e - potterton, 40e

£125.99
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Glowworm 0020258676 roof - 0020258676,

Glowworm 0020258676 roof - 0020258676,

£34.99
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175593 ideal keston ignition - 175593,

175593 ideal keston ignition - 175593,

£13.99
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Multi fit baxi - 1, meter

Multi fit baxi - 1, meter

£21.50
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Ideal logic imini icombi - ideal,

Ideal logic imini icombi - ideal,

£64.99
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100pcs 50mm gas - 100pcs, water

100pcs 50mm gas - 100pcs, water

£15.53
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Regin premier manometer - premier, 45

Regin premier manometer - premier, 45

£91.99
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Vaillant terminal plume - vaillant,

Vaillant terminal plume - vaillant,

£75.00
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Glowworm ideal baxi - ☆,

Glowworm ideal baxi - ☆,

£198.99
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100pcs 54mm gas water heater - 54mm,

100pcs 54mm gas water heater - 54mm,

£16.31
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Worcester greenstar junior - worcester, 24i

Worcester greenstar junior - worcester, 24i

£65.99
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Lpg propane gas - propane, water

Lpg propane gas - propane, water

£106.80
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18l 36kw gas hot - 18l, water

18l 36kw gas hot - 18l, water

£113.99
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📊96 listings · from £3.79 · avg £99.39
⚠️ These listings were last updated more than 22 days ago. Search for fresh listings

Browse 96 gas water heater listings currently in our index. Prices range from £3.79 to £549.99, with an average of £99.39. 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 gas water heater →

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Everything you need to know about gas water heater

Whether you are looking for a brand-new or second-hand gas water heater, 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 £3.79, while premium listings can reach £549.99 — giving you a wide budget spread to work with. The average price of £99.39 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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