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Tankless water heater

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Home / Water Heating & Filtration / Tankless water heater refurbished & used for sale | For Sale UK
3000w 220v electric - xy-fc,

3000w 220v electric - xy-fc,

£30.57
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Mrniu 6kw instant - mrniu,

Mrniu 6kw instant - mrniu,

£59.99
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3500w electric tankless - 3500w,

3500w electric tankless - 3500w,

£30.97
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3kw electric tankless - 3kw, instant

3kw electric tankless - 3kw, instant

£39.89
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3000w instant electric - 3000w,

3000w instant electric - 3000w,

£39.89
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18l lpg propane gas - lpg,

18l lpg propane gas - lpg,

£100.80
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Instant electric tankless - instant,

Instant electric tankless - instant,

£22.19
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Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£50.99
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3500w instant electric - 3500w,

3500w instant electric - 3500w,

£30.97
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Instant gas hot water - instant,

Instant gas hot water - instant,

£69.99
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18l propane gas - 18l,

18l propane gas - 18l,

£89.99
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Camplux propane tankless water - camplux,

Camplux propane tankless water - camplux,

£110.00
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3000w electric tankless - electric,

3000w electric tankless - electric,

£44.99
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Portable lpg propane gas hot - propane,

Portable lpg propane gas hot - propane,

£112.79
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Electric tankless instant - tankless, hot

Electric tankless instant - tankless, hot

£50.89
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£79.99
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6000w electric tankless - electric,

6000w electric tankless - electric,

£45.00
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3500w instant electric - 3500w,

3500w instant electric - 3500w,

£30.96
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3500w tankless hot - tankless,

3500w tankless hot - tankless,

£30.96
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Portable lpg propane gas - portable, 10l

Portable lpg propane gas - portable, 10l

£88.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£34.96
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£26.99
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New 18l instant gas - instant,

New 18l instant gas - instant,

£111.99
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5500w instant electric - instant,

5500w instant electric - instant,

£34.97
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18l propane gas tankless - 8l-18l,

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

£70.99
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5500w electric tankless - 5500w,

5500w electric tankless - 5500w,

£34.98
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3500w tankless hot water - tankless,

3500w tankless hot water - tankless,

£30.98
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6000w electric tankless - 6000w,

6000w electric tankless - 6000w,

£54.96
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5500w tankless hot water - 5500w,

5500w tankless hot water - 5500w,

£34.98
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£34.97
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18l propane gas tankless - 8l-18l,

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

£72.37
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Electric tankless water heater - electric,

Electric tankless water heater - electric,

£23.58
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Tankless gas hot water heater - hot,

Tankless gas hot water heater - hot,

£179.99
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Electric tankless instant - electric,

Electric tankless instant - electric,

£30.97
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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£42.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£42.99
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18l propane gas - gas, tankless

18l propane gas - gas, tankless

£67.85
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£43.99
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Zip es3 inline electronic - es3,

Zip es3 inline electronic - es3,

£187.90
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Brand new 5500w ryk 006 - brand,

Brand new 5500w ryk 006 - brand,

£31.90
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5500w tankless hot - hot, water

5500w tankless hot - hot, water

£34.98
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£49.86
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18l instant gas - hot, water

18l instant gas - hot, water

£98.00
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Electric tankless instant - electric,

Electric tankless instant - electric,

£58.69
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Electric tankless instant - electric,

Electric tankless instant - electric,

£44.89
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Portable water heater - 6l,

Portable water heater - 6l,

£63.23
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Camplux portable gas - camplux,

Camplux portable gas - camplux,

£149.99
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18l lpg propane gas - 8/10/12/16/18l,

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

£88.80
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Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£42.99
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Instant electric tankless - instant,

Instant electric tankless - instant,

£31.90
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Camplux instant gas hot - instant,

Camplux instant gas hot - instant,

£127.89
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Tankless water heater electric - water,

Tankless water heater electric - water,

£141.94
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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£34.97
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Instant electric water heater - electric,

Instant electric water heater - electric,

£68.94
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18l propane gas tankless - gas,

18l propane gas tankless - gas,

£77.45
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6000w electric tankless - 6000w,

6000w electric tankless - 6000w,

£54.99
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3kw electric tankless - 3kw,

3kw electric tankless - 3kw,

£39.89
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3000w mini electric tankless - 3000w,

3000w mini electric tankless - 3000w,

£54.96
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Electric tankless instant - electric,

Electric tankless instant - electric,

£30.98
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£55.80
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18l hot water - 8/10/12/16/18l,

18l hot water - 8/10/12/16/18l,

£88.80
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Mrniu 220v electric instant - mrniu,

Mrniu 220v electric instant - mrniu,

£49.99
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Portable water heater - portable,

Portable water heater - portable,

£64.43
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Electric tankless instant - tankless, hot

Electric tankless instant - tankless, hot

£42.99
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Tankless electric instant hot - tankless,

Tankless electric instant hot - tankless,

£56.99
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Lpg hot water heater - 6l,

Lpg hot water heater - 6l,

£80.99
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Electric tankless instant - instant, hot

Electric tankless instant - instant, hot

£23.35
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£55.80
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5500w electric instant hot - 5500w,

5500w electric instant hot - 5500w,

£52.42
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£59.99
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Min propane instant water - 6l/min,

Min propane instant water - 6l/min,

£80.99
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18l lpg propane gas - 8l-18l,

18l lpg propane gas - 8l-18l,

£83.99
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Electric instant hot water - instant,

Electric instant hot water - instant,

£52.40
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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£42.99
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Electric instant hot water - instant,

Electric instant hot water - instant,

£55.78
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1500w instant electric - 1500w,

1500w instant electric - 1500w,

£57.99
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Lpg instantaneous water heater - instantaneous,

Lpg instantaneous water heater - instantaneous,

£83.99
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Lpg propane gas - lpg,

Lpg propane gas - lpg,

£185.99
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Briwellna electric water - briwellna,

Briwellna electric water - briwellna,

£47.90
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Portable 2500w electric - portable,

Portable 2500w electric - portable,

£9.99
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Electric tankless instant - instant, hot

Electric tankless instant - instant, hot

£97.19
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12l hot water - hot,

12l hot water - hot,

£100.97
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16l lpg tankless gas hot - gas,

16l lpg tankless gas hot - gas,

£184.19
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Electric tankless instant - electric,

Electric tankless instant - electric,

£42.99
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220v 3000w tankless instant - tankless,

220v 3000w tankless instant - tankless,

£20.88
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360 electric heating - 360°,

360 electric heating - 360°,

£14.99
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Portable propane gas tankless - portable,

Portable propane gas tankless - portable,

£88.80
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Tankless instant electric - tankless,

Tankless instant electric - tankless,

£79.95
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3500w instant electric - 3500w,

3500w instant electric - 3500w,

£30.98
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3500w tankless hot water - hot,

3500w tankless hot water - hot,

£30.97
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Portable 2500w electric - portable,

Portable 2500w electric - portable,

£9.61
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Portable tankless gas water - portable,

Portable tankless gas water - portable,

£125.49
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Portable water heater - water,

Portable water heater - water,

£82.80
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Instant electric water heater - instant,

Instant electric water heater - instant,

£63.99
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Thermomate instant hot water - hot,

Thermomate instant hot water - hot,

£59.99
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Instant electric water heater - electric,

Instant electric water heater - electric,

£64.99
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📊96 listings · from £9.61 · avg £63.37
⚠️ These listings were last updated more than 19 days ago. Search for fresh listings

Browse 96 tankless water heater listings currently in our index. Prices range from £9.61 to £187.9, with an average of £63.37. 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: unvented indirect hot water cylinder | vaillant combi boiler | vokera | water softener parts | worcester bosch | worcester bosch combi boiler | worcester dt20rf | baxi gas wall heaters | central heating inhibitor | halstead boiler ace

Shop by budget

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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 £9.61, while premium listings can reach £187.9 — giving you a wide budget spread to work with. The average price of £63.37 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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