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3kw water heater

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3kw water heater for sale on Ireland's largest auction and classifieds sites

Home / Heating, Cooling & Air / 3kw water heater refurbished & used for sale | For Sale UK
Electric tankless instant - instant, hot

Electric tankless instant - instant, hot

£59.99 · Buy It Now

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Hyco powerflow smart 30l - powerflow,

Hyco powerflow smart 30l - powerflow,

£260.70 · Buy It Now

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Heatrae sadia multipoint - multipoint, 15l

Heatrae sadia multipoint - multipoint, 15l

£130.70 · Buy It Now

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Ariston andris lux 10l - ariston,

Ariston andris lux 10l - ariston,

£193.15 · Buy It Now

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Electric tankless instant - tankless,

Electric tankless instant - tankless,

£58.89 · Buy It Now

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3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£58.89 · Buy It Now

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Electric hand wash - electric, unit

Electric hand wash - electric, unit

£65.99 · Buy It Now

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Electric tankless instant 3kw - ~electric,

Electric tankless instant 3kw - ~electric,

£59.99 · Buy It Now

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New ariston blu evo15r 15l - blu,

New ariston blu evo15r 15l - blu,

£94.30 · Buy It Now

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H30 water heater 3000w - lx,

H30 water heater 3000w - lx,

£79.06 · Buy It Now

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Redring rmhw3 instantaneous - rmhw3,

Redring rmhw3 instantaneous - rmhw3,

£69.99 · Buy It Now

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New ariston andris lux - new,

New ariston andris lux - new,

£139.99 · Buy It Now

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Zip inline es3 instantaneous - inline,

Zip inline es3 instantaneous - inline,

£31.90 · Buy It Now

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Adris litre kw water - adris, 15

Adris litre kw water - adris, 15

£100.00 · Buy It Now

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Compact 3kw instant electric - 3kw,

Compact 3kw instant electric - 3kw,

£50.00 · Buy It Now

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Santon aquarius au10 10 - santon,

Santon aquarius au10 10 - santon,

£99.99 · Buy It Now

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Zip aquapoint ap3 2000w - ap3/15,

Zip aquapoint ap3 2000w - ap3/15,

£179.99 · Buy It Now

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Hyco instant electric - hyco, kw

Hyco instant electric - hyco, kw

£64.99 · 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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Ariston andris lux 10l - ariston,

Ariston andris lux 10l - ariston,

£239.64 · Buy It Now

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New ariston andris 15l 3kw - 15l,

New ariston andris 15l 3kw - 15l,

£139.99 · Buy It Now

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New ariston andris - new,

New ariston andris - new,

£131.99 · Buy It Now

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Ariston andris lux 10l - ariston,

Ariston andris lux 10l - ariston,

£233.32 · Buy It Now

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Compact 3kw instant electric - compact,

Compact 3kw instant electric - compact,

£49.99 · Buy It Now

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New ariston andris lux 15l - new, 3kw

New ariston andris lux 15l - new, 3kw

£139.99 · Buy It Now

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Electric instant water heater - electric,

Electric instant water heater - electric,

£79.99 · Buy It Now

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New ariston andris lux 30l - new,

New ariston andris lux 30l - new,

£329.59 · Buy It Now

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New ariston andris - new,

New ariston andris - new,

£131.99 · Buy It Now

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Heatrae sadia multipoint - multipoint, 10

Heatrae sadia multipoint - multipoint, 10

£94.96 · Buy It Now

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Qty zip inline 2 3kw - es,

Qty zip inline 2 3kw - es,

£208.70 · Buy It Now

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Artiston litre electric hot - artiston,

Artiston litre electric hot - artiston,

£68.30 · Buy It Now

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Ariston andris lux 15l - ariston,

Ariston andris lux 15l - ariston,

£212.97 · Buy It Now

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3kw mini electric - 3kw,

3kw mini electric - 3kw,

£49.99 · Buy It Now

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Tesla copper 3kw hot - 14”,

Tesla copper 3kw hot - 14”,

£8.47 · Buy It Now

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3kw hot water heater instant - 3kw,

3kw hot water heater instant - 3kw,

£49.99 · Buy It Now

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Heatrae sadia multipoint eco - sadia,

Heatrae sadia multipoint eco - sadia,

£103.66 · Buy It Now

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Heatrae sadia streamline under - sadia,

Heatrae sadia streamline under - sadia,

£142.64 · Buy It Now

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Triton t30ir 3kw infra - t30ir, red

Triton t30ir 3kw infra - t30ir, red

£83.95 · Buy It Now

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Andris lux 15l oversink 3kw - 15l,

Andris lux 15l oversink 3kw - 15l,

£156.70 · Buy It Now

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Oso direct unvented water

Oso direct unvented water

£363.70 · Buy It Now

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Triton t30i infrared - triton, 240v

Triton t30i infrared - triton, 240v

£109.25 · Buy It Now

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Triton t30i 3kw 240v - 3kw,

Triton t30i 3kw 240v - 3kw,

£83.76 · Buy It Now

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3kw electric instant hot water - 3kw,

3kw electric instant hot water - 3kw,

£59.99 · Buy It Now

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Triton spt303i 3kw handwash - triton,

Triton spt303i 3kw handwash - triton,

£63.99 · Buy It Now

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Alde 3010 water heater printed - 3010,

Alde 3010 water heater printed - 3010,

£243.96 · Buy It Now

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Willis external immersion - willis,

Willis external immersion - willis,

£79.99 · Buy It Now

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Hyco powerflow smart 30l - smart,

Hyco powerflow smart 30l - smart,

£349.99 · Buy It Now

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Ariston andris lux undersink - ariston,

Ariston andris lux undersink - ariston,

£79.99 · Buy It Now

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230v instant water - 7.3,

230v instant water - 7.3,

£89.99 · Buy It Now

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Heatrae sadia streamline - heatrae,

Heatrae sadia streamline - heatrae,

£349.95 · Buy It Now

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Triton t30i 3kw 240v - triton, over

Triton t30i 3kw 240v - triton, over

£109.25 · Buy It Now

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Heatrae sadia fbm - sadia,

Heatrae sadia fbm - sadia,

£291.26 · Buy It Now

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Ttulpe smartmaster litre - ttulpe,

Ttulpe smartmaster litre - ttulpe,

£419.00 · Buy It Now

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3kw water heater - , instant

3kw water heater - , instant

£95.00 · Buy It Now

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3kw electric tankless - electric,

3kw electric tankless - electric,

£57.43 · Buy It Now

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Triton t30i 3kw electric - triton,

Triton t30i 3kw electric - triton,

£69.99 · Buy It Now

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3kw electric tankless instant - 3kw,

3kw electric tankless instant - 3kw,

£60.99 · Buy It Now

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T30i 3kw electric water - t30i,

T30i 3kw electric water - t30i,

£78.99 · Buy It Now

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Gledhill 3kw immersion - gledhill,

Gledhill 3kw immersion - gledhill,

£32.93 · Buy It Now

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Heatresadia electric water - electric,

Heatresadia electric water - electric,

£52.70 · Buy It Now

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Cotherm 3 4 - 1", 3/4"

Cotherm 3 4 - 1", 3/4"

£16.08 · Buy It Now

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Fudeer instant hot water - instant,

Fudeer instant hot water - instant,

£84.99 · Buy It Now

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Triton t30i over sink electric - triton,

Triton t30i over sink electric - triton,

£69.99 · Buy It Now

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Heatrae sadia streamline - heatrae,

Heatrae sadia streamline - heatrae,

£104.70 · Buy It Now

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Redring instant i3v main unit - i3v,

Redring instant i3v main unit - i3v,

£49.95 · Buy It Now

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H30 hot tub - h30-r1, water

H30 hot tub - h30-r1, water

£74.24 · Buy It Now

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Electric hand wash - electric,

Electric hand wash - electric,

£55.00 · Buy It Now

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15l zip aquapoint 111 hot - 15l,

15l zip aquapoint 111 hot - 15l,

£167.99 · Buy It Now

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Energy efficient t30i 3kw - energy,

Energy efficient t30i 3kw - energy,

£89.99 · Buy It Now

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Immersion heater element - immersion,

Immersion heater element - immersion,

£35.49 · Buy It Now

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Triton t30i 3kw 240v oversink - triton,

Triton t30i 3kw 240v oversink - triton,

£66.39 · Buy It Now

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Heatrae carousel instantaneous - heatrae,

Heatrae carousel instantaneous - heatrae,

£31.89 · Buy It Now

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Electric hot water - electric, cylinder

Electric hot water - electric, cylinder

£389.99 · Buy It Now

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3kw instant electric - instant,

3kw instant electric - instant,

£60.99 · Buy It Now

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Group flow over sink - group,

Group flow over sink - group,

£52.70 · Buy It Now

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Instant hot water faucet 220v - instant,

Instant hot water faucet 220v - instant,

£89.92 · Buy It Now

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Heatrae sadia streamline - sadia,

Heatrae sadia streamline - sadia,

£374.99 · Buy It Now

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Ariston andris lux europrisma - andris,

Ariston andris lux europrisma - andris,

£182.42 · Buy It Now

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Tesla copper 3kw - 3kw, hot

Tesla copper 3kw - 3kw, hot

£15.24 · Buy It Now

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Albion 3kw immersion - albion, 11"

Albion 3kw immersion - albion, 11"

£20.49 · Buy It Now

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Tesla copper 3kw hot - copper,

Tesla copper 3kw hot - copper,

£36.81 · Buy It Now

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T30i 3kw electric water heater - electric,

T30i 3kw electric water heater - electric,

£82.99 · Buy It Now

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Triton t30i instaflow 3kw - triton,

Triton t30i instaflow 3kw - triton,

£69.75 · Buy It Now

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Tesla copper 3kw hot - copper,

Tesla copper 3kw hot - copper,

£18.10 · Buy It Now

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Triton t30i instaflow handwash - instaflow,

Triton t30i instaflow handwash - instaflow,

£57.90 · Buy It Now

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Ariston andris lux - andris,

Ariston andris lux - andris,

£144.99 · Buy It Now

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Hyco powerflow smart 100l - hyco,

Hyco powerflow smart 100l - hyco,

£499.99 · Buy It Now

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Gledhill direct immersion - gledhill,

Gledhill direct immersion - gledhill,

£26.89 · Buy It Now

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Ariston litre andris lux - ariston,

Ariston litre andris lux - ariston,

£433.95 · Buy It Now

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Horizontal electric hot water - electric,

Horizontal electric hot water - electric,

£219.99 · Buy It Now

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Cotherm 3kw immersion - 3/4",

Cotherm 3kw immersion - 3/4",

£20.09 · Buy It Now

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3kw 12kw stainless steel - 3kw-12kw,

3kw 12kw stainless steel - 3kw-12kw,

£52.79 · Buy It Now

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Heatrae sadia 95050143 - sadia,

Heatrae sadia 95050143 - sadia,

£689.95 · Buy It Now

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3kw electric instant hot water - electric,

3kw electric instant hot water - electric,

£40.23 · Buy It Now

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Heatrae sadia 7037052 - heatrae,

Heatrae sadia 7037052 - heatrae,

£700.00 · Buy It Now

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Ariston andris lux - lux, 15l

Ariston andris lux - lux, 15l

£253.09 · Buy It Now

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📊96 listings · from £8.47 · avg £135.71
⚠️ These listings were last updated more than 10 days ago. Search for fresh listings

Browse 96 3kw water heater listings currently in our index. Prices range from £8.47 to £700, with an average of £135.71. 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 3kw water heater →

Try this: 3m air purifier | 4 port manifold | 400w panel heater | 600 x 1400 double radiator | 600 x 900 radiator | adjustable radiator cover | air filter air purifier | aircon unit | airforce air conditioning unit | amcor dehumidifier

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Everything you need to know about 3kw water heater

Whether you are looking for a brand-new or second-hand 3kw 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 £8.47, while premium listings can reach £700 — giving you a wide budget spread to work with. The average price of £135.71 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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