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Under sink water heater

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

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Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£55.89 · Buy It Now

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7000w electric tankless - 7000w,

7000w electric tankless - 7000w,

£74.45 · Buy It Now

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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£32.99 · Buy It Now

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Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£32.99 · Buy It Now

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Electric tankless instant - electric,

Electric tankless instant - electric,

£32.99 · Buy It Now

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3kw electric tankless - electric,

3kw electric tankless - electric,

£55.89 · Buy It Now

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5500w electric tankless - 5500w,

5500w electric tankless - 5500w,

£32.99 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£32.99 · Buy It Now

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Electric tankless instant - tankless, 3kw

Electric tankless instant - tankless, 3kw

£32.99 · Buy It Now

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Electric tankless instant 3kw - electric,

Electric tankless instant 3kw - electric,

£32.99 · Buy It Now

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5500w electric tankless - 5500w,

5500w electric tankless - 5500w,

£32.99 · Buy It Now

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5500w electric instant hot - electric,

5500w electric instant hot - electric,

£52.42 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£30.69 · Buy It Now

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Dexpro litre under sink - dexpro,

Dexpro litre under sink - dexpro,

£109.99 · Buy It Now

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Litre under sink electric - 10,

Litre under sink electric - 10,

£129.99 · Buy It Now

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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£55.99 · Buy It Now

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Ariston andris lux 2kw - ariston,

Ariston andris lux 2kw - ariston,

£68.30 · Buy It Now

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Electric tankless instant 3kw - electric,

Electric tankless instant 3kw - electric,

£32.99 · Buy It Now

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Electric tankless instant - instant, 3kw

Electric tankless instant - instant, 3kw

£32.99 · Buy It Now

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15l 1500w electric instant - 15l, hot

15l 1500w electric instant - 15l, hot

£73.99 · Buy It Now

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Electric instant hot water - instant,

Electric instant hot water - instant,

£30.43 · 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,

£30.99 · Buy It Now

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Ariston andris lux 15l 2kw - ariston,

Ariston andris lux 15l 2kw - ariston,

£65.18 · Buy It Now

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Electric instant hot - electric,

Electric instant hot - electric,

£30.43 · Buy It Now

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Electric heating tap 360 - heating,

Electric heating tap 360 - heating,

£20.99 · Buy It Now

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Electric instant hot water - electric,

Electric instant hot water - electric,

£52.40 · Buy It Now

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5500w electric instant hot - electric,

5500w electric instant hot - electric,

£52.42 · Buy It Now

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New ariston andris - ariston,

New ariston andris - ariston,

£147.99 · Buy It Now

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New ariston andris 15l - new,

New ariston andris 15l - new,

£139.99 · Buy It Now

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Vented under sink electric - under,

Vented under sink electric - under,

£109.99 · Buy It Now

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Steibel eltron under sink - eltron,

Steibel eltron under sink - eltron,

£187.90 · Buy It Now

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3000w bathroom kitchen - 3000w, bathroom/kitchen

3000w bathroom kitchen - 3000w, bathroom/kitchen

£55.99 · Buy It Now

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Electric water heater shower - electric,

Electric water heater shower - electric,

£20.59 · Buy It Now

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Electric instantaneous water - electric,

Electric instantaneous water - electric,

£71.99 · 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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Electric instant hot water - instant,

Electric instant hot water - instant,

£52.40 · Buy It Now

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15l electric hot water - 10/12/15l,

15l electric hot water - 10/12/15l,

£73.99 · Buy It Now

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Ariston andris lux 10l - lux,

Ariston andris lux 10l - lux,

£239.64 · Buy It Now

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Ariston andris lux - lux, 10l

Ariston andris lux - lux, 10l

£63.07 · Buy It Now

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5500w electric instant hot - instant,

5500w electric instant hot - instant,

£52.70 · Buy It Now

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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£36.99 · Buy It Now

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230v instant water - 230v,

230v instant water - 230v,

£74.99 · Buy It Now

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Electric instant hot water - hot,

Electric instant hot water - hot,

£52.40 · Buy It Now

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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£41.89 · Buy It Now

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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£37.00 · Buy It Now

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Vented undersink electric - 6l,

Vented undersink electric - 6l,

£109.99 · Buy It Now

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Instant electric tankless - instant,

Instant electric tankless - instant,

£58.59 · Buy It Now

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📊48 listings · from £20.59 · avg £64.03

⚠️ These listings were last updated more than 25 days ago. Search for fresh listings

Browse 48 under sink water heater listings currently in our index. Prices range from £20.59 to £239.64, with an average of £64.03. 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 →

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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 48 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 £20.59, while premium listings can reach £239.64 — giving you a wide budget spread to work with. The average price of £64.03 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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