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3kw water heater

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

Home / Water Heating & Filtration / 3kw water heater refurbished & used for sale | For Sale UK
Triton instaflow t30i 3kw - instaflow,

Triton instaflow t30i 3kw - instaflow,

£37.10
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120l electric hot water - 50/80/120l,

120l electric hot water - 50/80/120l,

£125.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£40.75
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Zip es3 electric - electric, heater

Zip es3 electric - electric, heater

£182.70
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Heatrae sadia streamline - sadia,

Heatrae sadia streamline - sadia,

£120.00
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3kw electric tankless instant - 3kw,

3kw electric tankless instant - 3kw,

£38.00
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0kw hot tub spa - hot, /

0kw hot tub spa - hot, /

£31.90
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Triton t30i instaflow 3kw - t30i,

Triton t30i instaflow 3kw - t30i,

£60.76
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Electric tankless instant hot - tankless,

Electric tankless instant hot - tankless,

£40.89
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3kw electric tankless instant - tankless,

3kw electric tankless instant - tankless,

£49.99
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Thermowatt immersion heater - thermowatt,

Thermowatt immersion heater - thermowatt,

£57.90
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Ariston andris lux - ariston, 10l

Ariston andris lux - ariston, 10l

£83.90
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Heatrae sadia multipoint 3 - heatrae,

Heatrae sadia multipoint 3 - heatrae,

£57.89
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New ariston andris 15l 3kw - r,

New ariston andris 15l 3kw - r,

£166.24
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Premium 6kw instant electric - 6kw,

Premium 6kw instant electric - 6kw,

£24.00
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Electric tankless instant - electric,

Electric tankless instant - electric,

£50.99
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Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£40.76
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Zip inline es3 3kw - inline,

Zip inline es3 3kw - inline,

£208.69
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Ariston andris lux 15l - andris,

Ariston andris lux 15l - andris,

£52.70
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Ariston andris lux 15l - ariston,

Ariston andris lux 15l - ariston,

£122.00
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Triton spt303i 3kw - spt303i, handwash

Triton spt303i 3kw - spt303i, handwash

£63.99
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Ariston europrisma 15l 3kw - 15l,

Ariston europrisma 15l 3kw - 15l,

£63.10
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3kw electric tankless - electric, instant

3kw electric tankless - electric, instant

£42.99
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Incoloy immersion heater - immersion,

Incoloy immersion heater - immersion,

£22.97
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Gledhill 3kw immersion - gledhill, 14"

Gledhill 3kw immersion - gledhill, 14"

£32.93
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Santon litre 3kw - 7,

Santon litre 3kw - 7,

£115.00
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Fudeer instant hot water - fudeer,

Fudeer instant hot water - fudeer,

£30.00
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3kw electric instant hot - instant,

3kw electric instant hot - instant,

£41.99
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18l propane gas tankless - propane,

18l propane gas tankless - propane,

£99.99
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18l instant gas hot - instant,

18l instant gas hot - instant,

£99.99
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32kw 16l lpg propane gas - 32kw,

32kw 16l lpg propane gas - 32kw,

£180.49
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Camplux gas hot water heater - hot,

Camplux gas hot water heater - hot,

£189.99
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Redring rmhw3 instantaneous - redring,

Redring rmhw3 instantaneous - redring,

£69.99
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3kw electric tankless instant - 3kw,

3kw electric tankless instant - 3kw,

£42.99
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Ariston europrisma 30l - europrisma,

Ariston europrisma 30l - europrisma,

£59.99
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Compact 3kw instant electric - 3kw,

Compact 3kw instant electric - 3kw,

£49.99
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Tesy hot water cylinder - tesy,

Tesy hot water cylinder - tesy,

£349.99
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Ariston europrisma ep10 u - ariston,

Ariston europrisma ep10 u - ariston,

£26.46
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120l electric hot - 50/80/120l, water

120l electric hot - 50/80/120l, water

£106.99
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Dexpro 5kw inline - dexpro, instant

Dexpro 5kw inline - dexpro, instant

£146.74
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Cotherm 3 4 - -, 3kw

Cotherm 3 4 - -, 3kw

£16.08
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3kw electric tankless instant - 3kw,

3kw electric tankless instant - 3kw,

£40.75
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Redring rmhw3 instantaneous - redring,

Redring rmhw3 instantaneous - redring,

£75.99
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Tesy hot water cylinders - tesy,

Tesy hot water cylinders - tesy,

£349.99
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Heatrae sadia streamline 10l - heatrae,

Heatrae sadia streamline 10l - heatrae,

£89.10
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3kw immersion heater - 3kw,

3kw immersion heater - 3kw,

£32.93
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New ariston andris - 15l, 3kw

New ariston andris - 15l, 3kw

£166.24
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3kw electric instant - electric, tankless

3kw electric instant - electric, tankless

£40.75
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Electric tankless instant - electric,

Electric tankless instant - electric,

£49.99
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Incoloy immersion heater - immersion,

Incoloy immersion heater - immersion,

£17.22
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3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£40.76
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Heatrae sadia streamline - sadia,

Heatrae sadia streamline - sadia,

£234.70
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Ariston new europrisma ur - new,

Ariston new europrisma ur - new,

£79.99
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Electric hand wash unit 3kw - electric,

Electric hand wash unit 3kw - electric,

£59.99
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Heatrae sadia multipoint - sadia,

Heatrae sadia multipoint - sadia,

£1199.95
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Cotherm 3 4 3kw - cotherm,

Cotherm 3 4 3kw - cotherm,

£32.93
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Stelflow unvented cylinder - stelflow,

Stelflow unvented cylinder - stelflow,

£34.99
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Instant water heater 3kw 220v - heater,

Instant water heater 3kw 220v - heater,

£35.50
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Electric tankless instant hot - instant,

Electric tankless instant hot - instant,

£49.99
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3kw electric heating tap - heating,

3kw electric heating tap - heating,

£23.89
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Triton t30i instaflow 3kw - triton, hand

Triton t30i instaflow 3kw - triton, hand

£57.99
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Tesla copper 3kw - tesla,

Tesla copper 3kw - tesla,

£16.37
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Hot water cylinder copper - hot,

Hot water cylinder copper - hot,

£34.18
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H30 water heater - lx, 3000w

H30 water heater - lx, 3000w

£79.06
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H30 rs1 water heater - h30-rs1, 3000w

H30 rs1 water heater - h30-rs1, 3000w

£83.80
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Siroco diesel heater water - diesel,

Siroco diesel heater water - diesel,

£139.95
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Triton t30 hand wash water - t30,

Triton t30 hand wash water - t30,

£24.99
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Inch npt water heater - 1,

Inch npt water heater - 1,

£29.49
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Auqaforte profi pond heater - auqaforte,

Auqaforte profi pond heater - auqaforte,

£231.50
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T30i 3kw electric - t30i, water

T30i 3kw electric - t30i, water

£84.99
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Howden dh501 bolt domestic - howden,

Howden dh501 bolt domestic - howden,

£144.15
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Heatrae sadia streamline - sadia,

Heatrae sadia streamline - sadia,

£374.99
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Vaillant 3kw immersion - vaillant, heater

Vaillant 3kw immersion - vaillant, heater

£32.93
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Heatrae sadia express oversink - sadia,

Heatrae sadia express oversink - sadia,

£224.30
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Gledhill direct immersion - gledhill,

Gledhill direct immersion - gledhill,

£26.89
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Robimatic copper immersion - 11",

Robimatic copper immersion - 11",

£6.52
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Triton t30i infrared - triton, 3kw

Triton t30i infrared - triton, 3kw

£116.94
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T30i 3kw electric water - 3kw,

T30i 3kw electric water - 3kw,

£86.99
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New ariston andris - ariston, 15l

New ariston andris - ariston, 15l

£166.24
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3kw hot water - 3kw,

3kw hot water - 3kw,

£49.99
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Ariston andris lux 10l - ariston,

Ariston andris lux 10l - ariston,

£193.15
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3kw electric tankless - 3kw,

3kw electric tankless - 3kw,

£40.89
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Heatstore hw3 3kw - heatstore,

Heatstore hw3 3kw - heatstore,

£67.99
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Dafi water heater repair - water,

Dafi water heater repair - water,

£9.99
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Newlec nlmhw3kw 3kw manual - nlmhw3kw,

Newlec nlmhw3kw 3kw manual - nlmhw3kw,

£69.01
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Tesla copper 3kw hot - tesla,

Tesla copper 3kw hot - tesla,

£18.10
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Triton t30i 3kw - 240v, sink

Triton t30i 3kw - 240v, sink

£83.76
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Ariston 3kw immersion heater - ariston,

Ariston 3kw immersion heater - ariston,

£65.42
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Heatrae sadia multipoint - sadia,

Heatrae sadia multipoint - sadia,

£343.30
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Ariston andris lux oversink - andris,

Ariston andris lux oversink - andris,

£144.99
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Aquarius au7 water heater - water,

Aquarius au7 water heater - water,

£146.02
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Heatrae sadia megaflo 3kw - sadia,

Heatrae sadia megaflo 3kw - sadia,

£21.89
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Triton t30i 3kw 240v over - triton, sink

Triton t30i 3kw 240v over - triton, sink

£83.76
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Willis external immersion - willis,

Willis external immersion - willis,

£79.99
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Triton instaflow 2kw - 2kw, electric

Triton instaflow 2kw - 2kw, electric

£80.00
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6000w electric tankless - 6000w,

6000w electric tankless - 6000w,

£53.68
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📊96 listings · from £6.52 · avg £100.16

Browse 96 3kw water heater listings currently in our index. Prices range from £6.52 to £1199.95, with an average of £100.16. 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 →

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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 £6.52, while premium listings can reach £1199.95 — giving you a wide budget spread to work with. The average price of £100.16 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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