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Electric tankless instant - instant, hot
£58.99
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Chrome instant boiling - in,
£151.50
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Electric tankless instant - tankless, hot
£55.89
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16l instant hot water heater - 16l,
£178.59
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Instant hot water dispenser - 3l,
£30.99
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Lpg 18l portable - lpg,
£92.99
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18l lpg propane gas tankless - 18l,
£92.99
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Instant gas hot water - hot,
£69.99
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Electric instant water heater - water,
£22.79
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Zip hydroboil 15l - zip, automatic
£1230.70
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Electric tankless instant hot - electric,
£27.99
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Ells flow instant - ells,
£189.00
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Electric tankless instant hot - tankless,
£55.89
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6kw smart electric - 6kw,
£55.99
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Elise instant hot water - elise,
£184.99
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18l propane gas tankless - 8l-18l,
£79.99
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12l portable instant gas hot - portable,
£76.99
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Hot water dispenser hometronix - hot,
£44.99
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Qettle instant boiling - instant,
£400.00
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18l propane gas tankless - 8l-18l,
£70.99
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Electric tankless instant hot - tankless,
£43.95
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18l propane gas tankless - propane,
£94.99
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Hot caravan water - caravan, 16l
£85.99
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10l electric instant hot - 10l,
£60.29
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5kw digital instant boiling - 1.5kw,
£149.00
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Instant hot water - instant,
£37.10
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Electric tankless instant hot - instant,
£57.99
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2kw instant hot - hot, water
£32.25
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Electric tankless instant hot - electric,
£55.99
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80000btu 12l tankless gas - 12l,
£167.19
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Instant boiling water - 1,
£199.85
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Flode instant hot water - instant,
£179.99
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3500w electric instant - electric,
£24.29
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Portable lpg hot - 6l,
£67.89
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Geepas digital instant hot - digital,
£64.99
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Zip hydroboil hs005 boiler - zip,
£349.99
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Hot water dispenser - 3l,
£32.95
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Electric tankless instant hot - tankless,
£65.99
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Electric tankless instant hot - tankless,
£55.72
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16l propane gas - 16l,
£82.79
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Commercial hot water - commercial, boiler
£165.23
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New 18l instant gas - new,
£92.99
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3500w tankless hot water - 3500w,
£25.98
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1500w instant hot water - hot,
£242.40
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Brushed steel 4 - steel, 3-in-1
£199.00
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18l instant gas hot - instant,
£92.99
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Boiler 1500w instant hot - boiler,
£104.69
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Neostar perma therm cup hot - neostar, 18
£83.29
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Acquapuro wras 5kw digital - wras, 1.5kw
£137.98
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Qettle instant boiling - qettle,
£695.00
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3500w tankless hot - hot, water
£24.99
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Electric tankless instant - tankless, hot
£54.96
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3500w electric tankless water - electric,
£22.49
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Electric tankless instant hot - tankless,
£89.09
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10l instant gas hot water - instant,
£67.99
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18l instant gas hot - instant,
£76.99
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Instant hot water - tap, for
£156.00
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3500w tankless hot water - 3500w,
£24.99
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Propane gas tankless - propane,
£67.89
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2000w instant hot water - 2000w,
£39.95
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Digital hot water - hot, dispenser
£99.99
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Electric hot water cylinder - water,
£139.99
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18l lpg propane gas - lpg,
£92.99
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Chrome instant boiling - in,
£199.50
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Addis thermo pot instant - addis,
£25.14
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Boha square 1 instant - square, 3-in-1
£399.00
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3000w tankless hot - 3000w,
£49.99
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5500w tankless hot water - hot,
£33.98
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Instant boiling hot - hot, water
£32.95
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3500w tankless hot water - 3500w,
£24.89
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220v tankless hot - 220v,
£24.90
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Qettle instant boiling - 4-in-1,
£620.00
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Neostar perma therm cup hot - perma,
£74.96
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18l propane gas - propane, tankless
£77.99
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5500w tankless hot water - 5500w,
£32.99
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Electric tankless instant hot - tankless,
£97.19
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3500w electric instant - 3500w,
£23.99
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18l propane gas - propane,
£86.59
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3500w tankless hot water - 3500w,
£25.97
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Instant hot water - 2.5l,
£69.95
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Portable lpg hot water - portable,
£68.99
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Electric tankless instant hot - electric,
£57.96
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18l tankless lpg water - lpg, heater
£92.99
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3500w tankless hot water - 3500w,
£23.99
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Flode korsa cruciform 1 - korsa, 3
£134.99
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Portable lpg propane - portable, hot
£100.79
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Digital instant hot water - 3l,
£71.98
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Digital hot water dispenser - water, 3l
£32.95
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18l propane gas tankless - gas,
£83.89
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1500w instant hot water tap - 3l,
£199.99
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Instant hot water - instant,
£92.99
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Tankless gas hot water heater - hot,
£269.99
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18l propane gas tankless - 8l-18l,
£85.99
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Digital hot water - digital, dispenser
£129.99
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Quench wall mounted instant - mounted,
£500.00
Buy It Now
10l hot water heater - 10l, lpg
£101.99
Buy It Now
Looking for more instant water boiler?
Search eBay live — fresh results filtered for the best value, updated every hour.
Browse 96 instant water boiler listings currently in our index. Prices range from £22.49 to £1230.7, with an average of £123.22. 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 instant water boiler →
Try this: marco boiler | non electric water softener | paloma water heater | potterton performa 24 | riello oil burner | satronic | sunvic | system boiler | under sink unvented water heater | vaillant ecotec combi boiler
Whether you are looking for a brand-new or second-hand instant water 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 £22.49, while premium listings can reach £1230.7 — giving you a wide budget spread to work with. The average price of £123.22 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.