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Home / Heating, Cooling & Air / Tankless water heater refurbished & used for sale | For Sale UK
Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£50.99 · Buy It Now

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18l propane gas - gas, tankless

18l propane gas - gas, tankless

£70.99 · Buy It Now

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18l propane gas - propane,

18l propane gas - propane,

£84.99 · Buy It Now

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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£72.37 · Buy It Now

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3500w tankless hot water - tankless,

3500w tankless hot water - tankless,

£28.96 · Buy It Now

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3500w instant electric - 3500w,

3500w instant electric - 3500w,

£28.97 · Buy It Now

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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£53.55 · Buy It Now

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3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£55.89 · Buy It Now

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Electric tankless instant 3kw - electric,

Electric tankless instant 3kw - electric,

£55.89 · Buy It Now

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Portable lpg propane - propane, 6l

Portable lpg propane - propane, 6l

£52.88 · Buy It Now

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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£56.89 · Buy It Now

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18l instant gas - instant,

18l instant gas - instant,

£92.99 · Buy It Now

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3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£49.99 · Buy It Now

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Tankless electric instant hot - tankless,

Tankless electric instant hot - tankless,

£64.95 · Buy It Now

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

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

£99.99 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£79.95 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£49.99 · Buy It Now

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Electric tankless instant 3kw - ~electric,

Electric tankless instant 3kw - ~electric,

£56.99 · Buy It Now

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3500w electric tankless - 3500w,

3500w electric tankless - 3500w,

£28.97 · Buy It Now

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18l lpg propane gas - lpg,

18l lpg propane gas - lpg,

£89.99 · Buy It Now

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Electric tankless instant - electric, hot

Electric tankless instant - electric, hot

£22.99 · Buy It Now

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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£39.99 · Buy It Now

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Portable lpg gas - portable,

Portable lpg gas - portable,

£106.03 · Buy It Now

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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£51.57 · Buy It Now

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Electric tankless instant - electric, hot

Electric tankless instant - electric, hot

£28.98 · Buy It Now

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Tankless water heater - water, electric

Tankless water heater - water, electric

£141.94 · Buy It Now

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Camplux tankless propane - camplux,

Camplux tankless propane - camplux,

£156.70 · Buy It Now

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18l lpg propane - 8/10/12/16/18l,

18l lpg propane - 8/10/12/16/18l,

£100.80 · Buy It Now

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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£48.99 · Buy It Now

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18l propane gas - propane, tankless

18l propane gas - propane, tankless

£77.99 · Buy It Now

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16l propane gas tankless - propane,

16l propane gas tankless - propane,

£90.99 · Buy It Now

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Tankless electric instant hot - electric,

Tankless electric instant hot - electric,

£67.95 · Buy It Now

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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£49.99 · Buy It Now

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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£91.99 · Buy It Now

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Electric tankless instant - electric,

Electric tankless instant - electric,

£37.99 · Buy It Now

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Portable lpg propane gas - propane, 6l

Portable lpg propane gas - propane, 6l

£53.99 · Buy It Now

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Electric tankless instant - tankless, hot

Electric tankless instant - tankless, hot

£29.15 · Buy It Now

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220v tankless water heater - 220v,

220v tankless water heater - 220v,

£55.89 · Buy It Now

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Portable lpg propane gas - lpg,

Portable lpg propane gas - lpg,

£112.79 · Buy It Now

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6kw instant hot water - hot,

6kw instant hot water - hot,

£69.95 · Buy It Now

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Tankless electric instant - instant, hot

Tankless electric instant - instant, hot

£72.95 · Buy It Now

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12kw lpg outdoor camping - 12kw,

12kw lpg outdoor camping - 12kw,

£56.98 · Buy It Now

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Electric tankless instant - tankless, hot

Electric tankless instant - tankless, hot

£56.99 · Buy It Now

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Hot water heater - water, lpg

Hot water heater - water, lpg

£79.99 · Buy It Now

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Tankless gas hot - hot, heater

Tankless gas hot - hot, heater

£269.99 · Buy It Now

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16 18 20l - 6/8/10/12/16/18/20l, lpg

16 18 20l - 6/8/10/12/16/18/20l, lpg

£134.40 · Buy It Now

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Plug white 001a electric - white,

Plug white 001a electric - white,

£49.99 · Buy It Now

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Mulcort instant water - mulcort,

Mulcort instant water - mulcort,

£41.84 · Buy It Now

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7000w electric tankless - 7000w,

7000w electric tankless - 7000w,

£77.89 · Buy It Now

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18l propane lpg - propane, instant

18l propane lpg - propane, instant

£90.00 · Buy It Now

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18l tankless gas water heater - 18l,

18l tankless gas water heater - 18l,

£112.80 · Buy It Now

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Portable 2500w electric - 2500w,

Portable 2500w electric - 2500w,

£6.94 · Buy It Now

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18l instant gas - 18l,

18l instant gas - 18l,

£99.99 · Buy It Now

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80000btu 12l 24kw tankless gas - 24kw,

80000btu 12l 24kw tankless gas - 24kw,

£169.99 · Buy It Now

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Mini electric 5500w - 5500w,

Mini electric 5500w - 5500w,

£26.91 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£48.98 · Buy It Now

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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£29.59 · Buy It Now

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12l instant hot tankless - instant,

12l instant hot tankless - instant,

£170.28 · Buy It Now

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24kw 12l portable instant - portable,

24kw 12l portable instant - portable,

£141.67 · Buy It Now

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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£37.00 · Buy It Now

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12l 24kw instant hot - 12l,

12l 24kw instant hot - 12l,

£169.99 · Buy It Now

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Tankless hot water heater - hot,

Tankless hot water heater - hot,

£77.95 · Buy It Now

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Portable lpg propane gas - portable,

Portable lpg propane gas - portable,

£79.56 · Buy It Now

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4500w 6000w electric - electric, tankless

4500w 6000w electric - electric, tankless

£75.95 · Buy It Now

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Brand new 5500w - new, ryk-006

Brand new 5500w - new, ryk-006

£52.70 · Buy It Now

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5kw electric tankless - 1.5kw,

5kw electric tankless - 1.5kw,

£71.99 · Buy It Now

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New 18l instant gas - new,

New 18l instant gas - new,

£98.99 · Buy It Now

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10l 18l lpg - lpg, tankless

10l 18l lpg - lpg, tankless

£88.99 · Buy It Now

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3000w instant electric - 3000w,

3000w instant electric - 3000w,

£49.99 · Buy It Now

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1500w electric tankless - 1500w,

1500w electric tankless - 1500w,

£71.99 · Buy It Now

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Instant tankless electric - instant,

Instant tankless electric - instant,

£13.99 · Buy It Now

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10l lpg water - heater, with

10l lpg water - heater, with

£83.47 · Buy It Now

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3000w electric tankless - electric,

3000w electric tankless - electric,

£49.99 · Buy It Now

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15l electric tankless instant - electric,

15l electric tankless instant - electric,

£71.99 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£69.99 · Buy It Now

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Instant electric tankless - instant,

Instant electric tankless - instant,

£58.59 · Buy It Now

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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£22.99 · Buy It Now

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Thermomate instant hot water - hot,

Thermomate instant hot water - hot,

£179.99 · Buy It Now

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Instant electric water heater - electric,

Instant electric water heater - electric,

£155.00 · Buy It Now

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Mini electric water heater - water,

Mini electric water heater - water,

£26.70 · Buy It Now

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3500w tankless hot water - 3500w,

3500w tankless hot water - 3500w,

£28.96 · Buy It Now

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3000w digital display - 3000w,

3000w digital display - 3000w,

£17.82 · Buy It Now

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20l tankless propane - tankless, water

20l tankless propane - tankless, water

£98.99 · Buy It Now

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Electric tankless water - tankless, heater

Electric tankless water - tankless, heater

£28.98 · Buy It Now

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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£55.89 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£49.99 · Buy It Now

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5kw electric tankless - electric,

5kw electric tankless - electric,

£71.99 · Buy It Now

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Instant hot water heater - water, 8l

Instant hot water heater - water, 8l

£89.99 · Buy It Now

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10l 12l 16l - 8l/10l/12l/16l/18l, gas

10l 12l 16l - 8l/10l/12l/16l/18l, gas

£98.99 · Buy It Now

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Electric tankless hot - hot, water

Electric tankless hot - hot, water

£39.99 · Buy It Now

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18l instant gas hot - 8/10/12/16/18l,

18l instant gas hot - 8/10/12/16/18l,

£89.99 · Buy It Now

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5kw electric tankless - electric,

5kw electric tankless - electric,

£71.99 · Buy It Now

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3000w bathroom kitchen - 3000w, bathroom/kitchen

3000w bathroom kitchen - 3000w, bathroom/kitchen

£56.99 · Buy It Now

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12l 16l instant hot - 12l/16l, tankless

12l 16l instant hot - 12l/16l, tankless

£176.99 · Buy It Now

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18l gas instant water - 8/16/18l,

18l gas instant water - 8/16/18l,

£79.99 · Buy It Now

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12l propane gas - propane,

12l propane gas - propane,

£138.91 · Buy It Now

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📊96 listings · from £6.94 · avg £75.05
⚠️ These listings were last updated more than 24 days ago. Search for fresh listings

Browse 96 tankless water heater listings currently in our index. Prices range from £6.94 to £269.99, with an average of £75.05. 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 tankless water heater →

Try this: taxidermy shark | traditional radiators | ugg adirondack tall | ultrasonic tank | unvented indirect hot water cylinder | vaillant combi boiler | ventilator | vertical radiator | vokera | vw jetta hybrid

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Everything you need to know about tankless water heater

Whether you are looking for a brand-new or second-hand tankless 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 £6.94, while premium listings can reach £269.99 — giving you a wide budget spread to work with. The average price of £75.05 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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