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Under sink water heater

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Under sink water heater for sale on Ireland's largest auction and classifieds sites

Home / Ponds & Water Features / Under sink water heater refurbished & used for sale | For Sale UK
5kw electric instant - 1.5kw,

5kw electric instant - 1.5kw,

£62.89 · Buy It Now

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3000w instant electric - instant,

3000w instant electric - instant,

£43.99 · Buy It Now

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3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£42.89 · Buy It Now

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6kw instant hot - instant,

6kw instant hot - instant,

£69.95 · Buy It Now

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Electric tankless instant 3kw - instant,

Electric tankless instant 3kw - instant,

£43.99 · Buy It Now

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3000w instant electric - instant,

3000w instant electric - instant,

£42.89 · Buy It Now

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3kw electric tankless - 3kw,

3kw electric tankless - 3kw,

£44.97 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£29.99 · Buy It Now

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5kw 10l electric instant - 1.5kw,

5kw 10l electric instant - 1.5kw,

£59.99 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£23.49 · Buy It Now

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3kw hot water - heater, instant

3kw hot water - heater, instant

£42.89 · Buy It Now

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5kw electric instant hot - 1.5kw,

5kw electric instant hot - 1.5kw,

£58.99 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£43.89 · Buy It Now

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10l 1500w instant electric - 1500w,

10l 1500w instant electric - 1500w,

£62.89 · Buy It Now

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10l 1500w electric instant - 10l,

10l 1500w electric instant - 10l,

£65.99 · Buy It Now

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Litre under sink electric - litre,

Litre under sink electric - litre,

£129.99 · Buy It Now

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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£29.98 · Buy It Now

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10l 1500w electric instant - instant, hot

10l 1500w electric instant - instant, hot

£59.89 · Buy It Now

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5kw electric instant hot - 1.5kw,

5kw electric instant hot - 1.5kw,

£49.99 · Buy It Now

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5500w electric tankless - 5500w~electric,

5500w electric tankless - 5500w~electric,

£29.99 · Buy It Now

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3000w electric instant - 3000w,

3000w electric instant - 3000w,

£42.89 · Buy It Now

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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£58.99 · Buy It Now

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3000w electric tankless - 3000w,

3000w electric tankless - 3000w,

£45.99 · Buy It Now

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Electric instant hot water - electric,

Electric instant hot water - electric,

£51.57 · Buy It Now

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10l 5kw electric instant - 1.5kw,

10l 5kw electric instant - 1.5kw,

£59.99 · Buy It Now

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Electric tankless instant - instant, hot

Electric tankless instant - instant, hot

£43.89 · Buy It Now

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Electric hot water - electric,

Electric hot water - electric,

£56.99 · Buy It Now

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Electric tankless instant - electric,

Electric tankless instant - electric,

£48.98 · Buy It Now

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6000w electric tankless - 6000w,

6000w electric tankless - 6000w,

£72.95 · Buy It Now

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Dexpro 5kw inline instant - 7.5kw,

Dexpro 5kw inline instant - 7.5kw,

£145.99 · Buy It Now

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Electric tankless instant 3kw - electric,

Electric tankless instant 3kw - electric,

£49.99 · Buy It Now

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6000w electric tankless - 6000w,

6000w electric tankless - 6000w,

£54.99 · Buy It Now

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Under sink electric - under, water

Under sink electric - under, water

£45.00 · Buy It Now

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Electric tankless water heater - tankless,

Electric tankless water heater - tankless,

£44.98 · Buy It Now

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Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£49.99 · Buy It Now

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3000w bathroom kitchen - 3000w, bathroom/kitchen

3000w bathroom kitchen - 3000w, bathroom/kitchen

£43.99 · Buy It Now

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10l kitchen electric - rv,

10l kitchen electric - rv,

£62.99 · Buy It Now

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15l electric instant hot water - 15l,

15l electric instant hot water - 15l,

£59.99 · Buy It Now

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Vented under sink electric - vented, 5l

Vented under sink electric - vented, 5l

£109.99 · Buy It Now

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Vented undersink electric - vented,

Vented undersink electric - vented,

£109.99 · Buy It Now

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15l electric instant - 10/12/15l,

15l electric instant - 10/12/15l,

£71.99 · Buy It Now

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Electric hot water - uk,

Electric hot water - uk,

£55.98 · Buy It Now

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Electric tankless instant - electric,

Electric tankless instant - electric,

£29.99 · Buy It Now

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15l 1500w electric hot water - 15l,

15l 1500w electric hot water - 15l,

£71.99 · Buy It Now

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Ferroli novo 2kw - ferroli, 10

Ferroli novo 2kw - ferroli, 10

£52.70 · Buy It Now

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Electric instant hot - electric,

Electric instant hot - electric,

£59.99 · Buy It Now

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5kw electric hot water - electric,

5kw electric hot water - electric,

£58.69 · Buy It Now

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Electric tankless hot water - electric,

Electric tankless hot water - electric,

£43.99 · Buy It Now

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15l electric instant - hot, water

15l electric instant - hot, water

£69.90 · Buy It Now

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Electric instant water heater - instant,

Electric instant water heater - instant,

£69.99 · Buy It Now

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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£23.89 · Buy It Now

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Electric instant water - electric,

Electric instant water - electric,

£35.65 · Buy It Now

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Ariston andris 10l under - r,

Ariston andris 10l under - r,

£63.10 · Buy It Now

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10l electric instant - instant, water

10l electric instant - instant, water

£61.99 · Buy It Now

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Kitchen 3000w electric - 3000w,

Kitchen 3000w electric - 3000w,

£43.99 · Buy It Now

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Dexpro 10l unvented - dexpro, water

Dexpro 10l unvented - dexpro, water

£133.36 · Buy It Now

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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£30.79 · Buy It Now

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Hyco speedflow litre - hyco,

Hyco speedflow litre - hyco,

£135.00 · Buy It Now

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Electric instant hot water - electric,

Electric instant hot water - electric,

£51.57 · Buy It Now

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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£43.99 · Buy It Now

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Electric tankless instant - instant, hot

Electric tankless instant - instant, hot

£42.95 · Buy It Now

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Ariston andris lux 15l - ariston,

Ariston andris lux 15l - ariston,

£79.99 · Buy It Now

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10l 1500w electric instant - 10l, hot

10l 1500w electric instant - 10l, hot

£59.99 · Buy It Now

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3kw electric tankless - 3kw, instant

3kw electric tankless - 3kw, instant

£44.99 · Buy It Now

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Hot water heater - heater, under

Hot water heater - heater, under

£34.50 · Buy It Now

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Ariston andris lux - lux, under

Ariston andris lux - lux, under

£89.10 · Buy It Now

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Dexpro 2kw digital unvented - 2kw,

Dexpro 2kw digital unvented - 2kw,

£129.99 · Buy It Now

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Dexpro litre under sink - litre,

Dexpro litre under sink - litre,

£109.99 · Buy It Now

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5kw 10l electric - 1.5kw,

5kw 10l electric - 1.5kw,

£59.99 · Buy It Now

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Dexpro 5kw inline - dexpro,

Dexpro 5kw inline - dexpro,

£115.00 · Buy It Now

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5kw electric instant hot - electric,

5kw electric instant hot - electric,

£59.99 · Buy It Now

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Under sink mini tankless water - sink,

Under sink mini tankless water - sink,

£21.49 · Buy It Now

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1500w electric tankless - 1500w,

1500w electric tankless - 1500w,

£69.99 · Buy It Now

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Electric instant hot - electric,

Electric instant hot - electric,

£51.55 · Buy It Now

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10l electric instant hot water - electric,

10l electric instant hot water - electric,

£59.99 · Buy It Now

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5kw instant point use - instant,

5kw instant point use - instant,

£69.99 · Buy It Now

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230v instant water - 4.5,

230v instant water - 4.5,

£79.99 · Buy It Now

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Instant electric tankless - instant,

Instant electric tankless - instant,

£58.59 · Buy It Now

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10l 1500w electric instant hot - 10l,

10l 1500w electric instant hot - 10l,

£61.99 · Buy It Now

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Electric instant hot water - hot,

Electric instant hot water - hot,

£51.55 · Buy It Now

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3000w instant electric - 3000w-instant,

3000w instant electric - 3000w-instant,

£43.99 · Buy It Now

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15l electric instant - instant, hot

15l electric instant - instant, hot

£71.99 · Buy It Now

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Electric tankless instant - electric,

Electric tankless instant - electric,

£44.98 · Buy It Now

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Water heater 2kw under sink - water,

Water heater 2kw under sink - water,

£54.99 · Buy It Now

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Dexpro litre under - dexpro, 10

Dexpro litre under - dexpro, 10

£99.99 · Buy It Now

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5kw electric tankless - 1.5kw,

5kw electric tankless - 1.5kw,

£69.99 · Buy It Now

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230v instant water - 230v,

230v instant water - 230v,

£79.99 · Buy It Now

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10l 5kw electric - electric, water

10l 5kw electric - electric, water

£59.99 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£29.50 · Buy It Now

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5500w electric tankless - 5500w~electric,

5500w electric tankless - 5500w~electric,

£29.99 · Buy It Now

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Hyco speedflow litre - speedflow, 15

Hyco speedflow litre - speedflow, 15

£120.00 · Buy It Now

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Ariston undersink water heater - undersink,

Ariston undersink water heater - undersink,

£64.99 · Buy It Now

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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£43.99 · Buy It Now

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Ariston undersink water - ariston,

Ariston undersink water - ariston,

£109.99 · Buy It Now

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4500w 6000w electric tankless - 4500w-6000w,

4500w 6000w electric tankless - 4500w-6000w,

£75.95 · Buy It Now

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1500w 10l electric mini - electric,

1500w 10l electric mini - electric,

£62.89 · Buy It Now

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📊96 listings · from £21.49 · avg £61.7

Browse 96 under sink water heater listings currently in our index. Prices range from £21.49 to £145.99, with an average of £61.7. 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 under sink water heater →

Try this: glow worm cxi pcb | vaillant ecotec plus | ariston water heater | grundfos alpha 2 | ariston boiler | astracast tap | alpha boiler | worcester bosch fan | coral reef | water purifier

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Everything you need to know about under sink water heater

Whether you are looking for a brand-new or second-hand under sink 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 £21.49, while premium listings can reach £145.99 — giving you a wide budget spread to work with. The average price of £61.7 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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