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Tankless water heater

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Home / Ponds & Water Features / Tankless water heater refurbished & used for sale | For Sale UK
18l lpg propane gas - 8/10/12/16/18l,

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

£107.16
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18l propane gas - propane,

18l propane gas - propane,

£70.99
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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£32.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£72.37
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3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£40.89
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3000w instant electric - 3000w,

3000w instant electric - 3000w,

£40.89
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5500w tankless hot water - tankless,

5500w tankless hot water - tankless,

£32.99
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Electric tankless instant - ~electric,

Electric tankless instant - ~electric,

£41.99
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18l lpg propane - 8/10/12/16/18l,

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

£107.16
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10l 12l 16l 18l instant - 10l/12l/16l/18l,

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

£98.99
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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£41.99
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Portable lpg hot water - portable, 6l

Portable lpg hot water - portable, 6l

£63.98
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Portable lpg hot water - hot,

Portable lpg hot water - hot,

£63.98
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3500w tankless hot water - tankless,

3500w tankless hot water - tankless,

£30.96
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Instant electric hot water - electric, tap

Instant electric hot water - electric, tap

£35.00
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£113.76
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Tankless gas hot - tankless, water

Tankless gas hot - tankless, water

£179.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£23.29
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3kw hot water - hot, instant

3kw hot water - hot, instant

£40.89
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3kw electric tankless - 3kw,

3kw electric tankless - 3kw,

£43.86
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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£41.89
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18l propane gas water - propane,

18l propane gas water - propane,

£69.99
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£32.99
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Tankless water heater electric - tankless,

Tankless water heater electric - tankless,

£141.94
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Instant electric water heater - instant,

Instant electric water heater - instant,

£63.99
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2500w electric immersion - immersion, water

2500w electric immersion - immersion, water

£10.58
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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£45.99
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6000w electric tankless - 6000w,

6000w electric tankless - 6000w,

£54.99
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Electric water heater hot - electric,

Electric water heater hot - electric,

£26.49
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6kw electric tankless - 6kw,

6kw electric tankless - 6kw,

£69.95
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Aztec water heater - aztec,

Aztec water heater - aztec,

£156.70
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3000w instant electric - 3000w,

3000w instant electric - 3000w,

£41.99
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£51.57
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18l propane gas - 8l-18l,

18l propane gas - 8l-18l,

£74.99
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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£45.99
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Mrniu 220v electric instant - electric,

Mrniu 220v electric instant - electric,

£49.99
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Portable lpg propane gas 10l - propane,

Portable lpg propane gas 10l - propane,

£89.99
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New 18l instant gas - 8/10/12/16/18l,

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

£112.99
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3500w electric tankless - 3500w,

3500w electric tankless - 3500w,

£30.97
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5500w electric tankless - 5500w~electric,

5500w electric tankless - 5500w~electric,

£32.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£105.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£48.98
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18l lpg propane gas - propane,

18l lpg propane gas - propane,

£89.99
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18l tankless gas water - 18l, heater

18l tankless gas water - 18l, heater

£112.80
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80000btu 12l tankless gas hot - 80000btu,

80000btu 12l tankless gas hot - 80000btu,

£175.99
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5500w electric instant hot - instant,

5500w electric instant hot - instant,

£49.80
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£87.99
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Tankless instant boiler horse - instant,

Tankless instant boiler horse - instant,

£107.15
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3000w tankless hot water - 3000w,

3000w tankless hot water - 3000w,

£45.99
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3000w small tankless - small,

3000w small tankless - small,

£40.99
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Lpg instantaneous water heater - lpg,

Lpg instantaneous water heater - lpg,

£108.99
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Tankless water heater 12v - water,

Tankless water heater 12v - water,

£79.99
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3000w instant electric - 3000w,

3000w instant electric - 3000w,

£45.99
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Portable water heater - 6l,

Portable water heater - 6l,

£78.66
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5500w electric tankless - 5500w~electric,

5500w electric tankless - 5500w~electric,

£32.99
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3500w tankless hot water - tankless,

3500w tankless hot water - tankless,

£35.84
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Electric immersion water - immersion,

Electric immersion water - immersion,

£9.93
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3000w instant electric - 3000w,

3000w instant electric - 3000w,

£45.99
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£79.99
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15in tankless water - tankless,

15in tankless water - tankless,

£225.39
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Gasland 16l gas hot - gasland, 6/10/16l

Gasland 16l gas hot - gasland, 6/10/16l

£125.50
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12v rv tankless water - 9/12, l

12v rv tankless water - 9/12, l

£79.99
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3kw electric tankless - tankless, instant

3kw electric tankless - tankless, instant

£45.99
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18l instant gas - 8-18l,

18l instant gas - 8-18l,

£77.99
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Electric tankless water heater - electric,

Electric tankless water heater - electric,

£27.74
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5500w electric instant - instant, hot

5500w electric instant - instant, hot

£52.42
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£105.99
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Hot water heater - hot,

Hot water heater - hot,

£112.80
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Tankless portable gas water - portable,

Tankless portable gas water - portable,

£80.99
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Instant hot water heater under - hot,

Instant hot water heater under - hot,

£19.89
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Electric tankless instant - instant, 3kw

Electric tankless instant - instant, 3kw

£49.99
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Electric tankless water heater - tankless,

Electric tankless water heater - tankless,

£43.86
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24kw electric instant - up, to

24kw electric instant - up, to

£208.70
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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£45.99
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3kw electric tankless - 3kw,

3kw electric tankless - 3kw,

£45.99
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Electric tankless instant - electric,

Electric tankless instant - electric,

£22.99
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Camplux portable gas tankless - camplux,

Camplux portable gas tankless - camplux,

£160.99
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Portable lpg hot water - portable,

Portable lpg hot water - portable,

£63.98
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Electric tankless instant - instant, hot

Electric tankless instant - instant, hot

£45.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£48.98
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3000w bathroom kitchen - 3000w, bathroom/kitchen

3000w bathroom kitchen - 3000w, bathroom/kitchen

£41.99
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220v tankless hot water - hot, heater

220v tankless hot water - hot, heater

£37.04
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20l tankless propane gas water - 20l,

20l tankless propane gas water - 20l,

£98.99
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Shioucy electric instant water - electric,

Shioucy electric instant water - electric,

£59.99
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Electric instant hot 5500w - instant,

Electric instant hot 5500w - instant,

£52.41
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18l propane gas water heater - 18l,

18l propane gas water heater - 18l,

£94.99
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5500w tankless hot water - 5500w,

5500w tankless hot water - 5500w,

£35.49
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3000w electric instant - 3000w,

3000w electric instant - 3000w,

£40.89
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5500w electric tankless - 5500w~electric,

5500w electric tankless - 5500w~electric,

£32.99
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Camplux tankless propane gas - tankless,

Camplux tankless propane gas - tankless,

£299.99
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Electric tankless hot water - electric,

Electric tankless hot water - electric,

£41.99
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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£43.99
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18l propane gas - propane, heater

18l propane gas - propane, heater

£112.99
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2500w tankless water heater - tankless,

2500w tankless water heater - tankless,

£17.40
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Mini instant electric water - mini,

Mini instant electric water - mini,

£49.90
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18l gas instant water - gas,

18l gas instant water - gas,

£79.99
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📊96 listings · from £9.93 · avg £70.29
⚠️ These listings were last updated more than 16 days ago. Search for fresh listings

Browse 96 tankless water heater listings currently in our index. Prices range from £9.93 to £299.99, with an average of £70.29. 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: tetra fish tank | toyota primera | trash water pump | tube slide | unimog 1600 | unimog u1300l | unvented indirect hot water cylinder | vaillant combi boiler | vauxhall calibre | vokera

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

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 £9.93, while premium listings can reach £299.99 — giving you a wide budget spread to work with. The average price of £70.29 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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