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Instant electric water heater - instant,

Instant electric water heater - instant,

£42.30
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3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£41.89
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£99.99
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5kw 10l electric instant - 10l,

5kw 10l electric instant - 10l,

£69.99
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Instant electric water heater - water,

Instant electric water heater - water,

£42.30
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360 electric heating tap - electric,

360 electric heating tap - electric,

£14.79
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18l lpg propane gas - propane,

18l lpg propane gas - propane,

£107.16
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Electric heating tap - electric,

Electric heating tap - electric,

£17.99
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Electric tankless instant - tankless, hot

Electric tankless instant - tankless, hot

£53.99
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1500w electric instant hot - electric,

1500w electric instant hot - electric,

£59.99
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Electric heating tap 360 - tap, 360°

Electric heating tap 360 - tap, 360°

£16.99
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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£43.89
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3000w instant electric - 3000w,

3000w instant electric - 3000w,

£41.89
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15l 1500w electric instant hot - 15l,

15l 1500w electric instant hot - 15l,

£85.99
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Electric tankless instant 3kw - electric,

Electric tankless instant 3kw - electric,

£49.99
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6kw electric instant - instant, water

6kw electric instant - instant, water

£73.83
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Instant gas hot water - instant,

Instant gas hot water - instant,

£69.99
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1500w 10l electric instant - 1500w,

1500w 10l electric instant - 1500w,

£50.00
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Electric thankles instant - instant, hot

Electric thankles instant - instant, hot

£21.99
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360 electric heating tap - 360°,

360 electric heating tap - 360°,

£13.29
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3500w electric instant water - 3500w,

3500w electric instant water - 3500w,

£22.39
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3kw electric tankless - 3kw,

3kw electric tankless - 3kw,

£42.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£41.89
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Small instant electric - small,

Small instant electric - small,

£22.85
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Electric instant water heater - electric,

Electric instant water heater - electric,

£76.99
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Electric tankless instant - electric,

Electric tankless instant - electric,

£30.97
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Instant electric tankless - instant,

Instant electric tankless - instant,

£22.69
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3kw 3000w instant electric - 3000w,

3kw 3000w instant electric - 3000w,

£37.09
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10l 5kw electric - 10l, 1.5kw

10l 5kw electric - 10l, 1.5kw

£58.99
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Electric tankless instant - electric,

Electric tankless instant - electric,

£49.89
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Fudeer 502 instant - fudeer, xh-502

Fudeer 502 instant - fudeer, xh-502

£47.87
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10l 1500w electric instant hot - 1500w,

10l 1500w electric instant hot - 1500w,

£69.99
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3400w instant electric - 3400w,

3400w instant electric - 3400w,

£25.00
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18l propane gas - gas, tankless

18l propane gas - gas, tankless

£89.99
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Dexpro 5kw inline instant - dexpro,

Dexpro 5kw inline instant - dexpro,

£145.99
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18l lpg propane - propane, gas

18l lpg propane - propane, gas

£95.76
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Electric heater led faucet tap - led,

Electric heater led faucet tap - led,

£13.02
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3000w electric tankless hot - 3000w,

3000w electric tankless hot - 3000w,

£41.89
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16l lpg tankless gas hot - tankless,

16l lpg tankless gas hot - tankless,

£185.99
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£97.19
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10l kitchen electric - rv,

10l kitchen electric - rv,

£59.89
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360 electric heating tap - heating,

360 electric heating tap - heating,

£13.89
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6000w electric tankless - 6000w,

6000w electric tankless - 6000w,

£38.25
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£54.96
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3500w instant electric - 3500w,

3500w instant electric - 3500w,

£30.97
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Instant water heater 220v - water,

Instant water heater 220v - water,

£27.99
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Electric heating tap 360 - electric,

Electric heating tap 360 - electric,

£18.59
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5500w mini tankless - mini,

5500w mini tankless - mini,

£49.89
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Electric tankless water - tankless, heater

Electric tankless water - tankless, heater

£21.45
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Redring rps95 5kw - redring,

Redring rps95 5kw - redring,

£69.99
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18l lpg propane gas - lpg,

18l lpg propane gas - lpg,

£86.99
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Redring powerstream 5kw - redring, 9.5kw

Redring powerstream 5kw - redring, 9.5kw

£135.90
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3500w instant electric - 3500w,

3500w instant electric - 3500w,

£30.97
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Camplux 12l gas - camplux,

Camplux 12l gas - camplux,

£109.99
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Portable lpg propane - portable, gas

Portable lpg propane - portable, gas

£88.99
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18l propane gas tankless - 8l-18l,

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

£84.99
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5500w electric instant - 5500w, hot

5500w electric instant - 5500w, hot

£52.42
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3500w instant electric - 3500w,

3500w instant electric - 3500w,

£23.49
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130000btu 16l tankless gas hot - 130000btu,

130000btu 16l tankless gas hot - 130000btu,

£184.13
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3500w electric tankless - 3500w,

3500w electric tankless - 3500w,

£30.97
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Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£42.99
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220v 3000w plug instant - 220v,

220v 3000w plug instant - 220v,

£29.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£42.99
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360 electric heating tap - 360°,

360 electric heating tap - 360°,

£25.89
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360 electric led fast - electric,

360 electric led fast - electric,

£19.96
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Instant hot electric - instant,

Instant hot electric - instant,

£49.89
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360 electric heating tap - electric,

360 electric heating tap - electric,

£25.99
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Electric heating tap kitchen - heating,

Electric heating tap kitchen - heating,

£25.89
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Tankless electric instant hot - tankless,

Tankless electric instant hot - tankless,

£55.99
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360 electric heating - electric,

360 electric heating - electric,

£25.89
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5kw electric instant hot - 1.5kw,

5kw electric instant hot - 1.5kw,

£53.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£42.99
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Instant gas hot water - 8l,

Instant gas hot water - 8l,

£60.00
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Electric tankless instant - tankless, hot

Electric tankless instant - tankless, hot

£42.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£83.89
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Electric heating tap - tap, 360°

Electric heating tap - tap, 360°

£20.99
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5500w tankless hot - 5500w,

5500w tankless hot - 5500w,

£22.48
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1500w 10l electric - electric, hot

1500w 10l electric - electric, hot

£50.62
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18l propane gas - 8l-18l,

18l propane gas - 8l-18l,

£99.99
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3500w tankless hot - 3500w,

3500w tankless hot - 3500w,

£30.96
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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£50.99
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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£53.99
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12l 24kw instant - 24kw,

12l 24kw instant - 24kw,

£168.99
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Led electric heating tap - led,

Led electric heating tap - led,

£26.99
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£60.99
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5500w electric instant hot - electric,

5500w electric instant hot - electric,

£47.99
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3000w electric tankless - electric,

3000w electric tankless - electric,

£42.99
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1500w 15l electric - 1500w, hot

1500w 15l electric - 1500w, hot

£75.00
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12l portable instant gas - instant, hot

12l portable instant gas - instant, hot

£83.99
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10l electric instant hot water - 10l,

10l electric instant hot water - 10l,

£62.99
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Electric heating tap - tap, 360°

Electric heating tap - tap, 360°

£19.99
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Electric hand wash unit - electric,

Electric hand wash unit - electric,

£64.87
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5500w 220v instant - 220v,

5500w 220v instant - 220v,

£37.99
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360 electric heating - electric,

360 electric heating - electric,

£19.81
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Portable lpg propane gas hot - propane,

Portable lpg propane gas hot - propane,

£100.79
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Mains 220v instant - mains,

Mains 220v instant - mains,

£55.99
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📊96 listings · from £13.02 · avg £55.01

Browse 96 instant water heater listings currently in our index. Prices range from £13.02 to £185.99, with an average of £55.01. 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 heater →

Try this: instant water boiler | marco boiler | non electric water softener | paloma water heater | potterton netaheat boiler | riello rdb burner | riello oil burner | satronic | under sink unvented water heater | vaillant ecotec plus 831

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< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

Everything you need to know about instant water heater

Whether you are looking for a brand-new or second-hand instant 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 £13.02, while premium listings can reach £185.99 — giving you a wide budget spread to work with. The average price of £55.01 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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