For Sale UK

3kw water heater

4

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
3kw electric tankless instant - 3kw,

3kw electric tankless instant - 3kw,

£39.89
Buy It Now

» View on eBay
Electric tankless instant 3kw - electric,

Electric tankless instant 3kw - electric,

£50.99
Buy It Now

» View on eBay
New ariston andris 15l 3kw - ariston, r

New ariston andris 15l 3kw - ariston, r

£166.24
Buy It Now

» View on eBay
3kw 220v electric swimming - 220v,

3kw 220v electric swimming - 220v,

£156.70
Buy It Now

» View on eBay
Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£43.99
Buy It Now

» View on eBay
Triton t30i instaflow 3kw - instaflow,

Triton t30i instaflow 3kw - instaflow,

£64.41
Buy It Now

» View on eBay
Electric instant water - water, heater

Electric instant water - water, heater

£78.99
Buy It Now

» View on eBay
3kw electric tankless instant - electric,

3kw electric tankless instant - electric,

£39.89
Buy It Now

» View on eBay
Redring rmhw3 instantaneous - rmhw3,

Redring rmhw3 instantaneous - rmhw3,

£69.99
Buy It Now

» View on eBay
Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£42.99
Buy It Now

» View on eBay
Tesy hot water cylinders - hot,

Tesy hot water cylinders - hot,

£349.99
Buy It Now

» View on eBay
Redring hand wash - hand, heater

Redring hand wash - hand, heater

£69.99
Buy It Now

» View on eBay
Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£42.99
Buy It Now

» View on eBay
Heatrae sadia express - sadia,

Heatrae sadia express - sadia,

£234.70
Buy It Now

» View on eBay
Heatrae sadia streamline - heatrae,

Heatrae sadia streamline - heatrae,

£93.26
Buy It Now

» View on eBay
Ariston andris lux - andris, 15l

Ariston andris lux - andris, 15l

£253.09
Buy It Now

» View on eBay
Instaflow handwash water - instaflow,

Instaflow handwash water - instaflow,

£146.99
Buy It Now

» View on eBay
Ariston oversink electric - ariston,

Ariston oversink electric - ariston,

£266.99
Buy It Now

» View on eBay
3kw electric tankless - electric, instant

3kw electric tankless - electric, instant

£49.99
Buy It Now

» View on eBay
3kw immersion heater - 3kw, 14"

3kw immersion heater - 3kw, 14"

£32.93
Buy It Now

» View on eBay
New ariston andris lux 15l - ariston,

New ariston andris lux 15l - ariston,

£166.24
Buy It Now

» View on eBay
H30 water heater 3000w - water,

H30 water heater 3000w - water,

£79.06
Buy It Now

» View on eBay
3kw electric tankless instant - 3kw,

3kw electric tankless instant - 3kw,

£44.99
Buy It Now

» View on eBay
Ariston europrisma ep10 u - europrisma, o

Ariston europrisma ep10 u - europrisma, o

£26.46
Buy It Now

» View on eBay
Heatrae sadia multipoint - sadia, 15l

Heatrae sadia multipoint - sadia, 15l

£299.00
Buy It Now

» View on eBay
Thermaq 3kw instantaneous - thermaq,

Thermaq 3kw instantaneous - thermaq,

£63.10
Buy It Now

» View on eBay
Electric tankless instant 3kw - electric,

Electric tankless instant 3kw - electric,

£49.99
Buy It Now

» View on eBay
Zip inline es3 point - zip, of

Zip inline es3 point - zip, of

£156.70
Buy It Now

» View on eBay
Flomasta oversink electric - flomasta,

Flomasta oversink electric - flomasta,

£95.00
Buy It Now

» View on eBay
Zip es3 electric water - water, heater

Zip es3 electric water - water, heater

£208.70
Buy It Now

» View on eBay
Flomasta oversink electric - oversink,

Flomasta oversink electric - oversink,

£229.99
Buy It Now

» View on eBay
Ariston andris lux 10l - andris,

Ariston andris lux 10l - andris,

£239.64
Buy It Now

» View on eBay
Heatrae sadia streamline under - sadia,

Heatrae sadia streamline under - sadia,

£279.95
Buy It Now

» View on eBay
Aquarius au7 water heater - aquarius,

Aquarius au7 water heater - aquarius,

£146.02
Buy It Now

» View on eBay
Flomasta oversink water heater - water,

Flomasta oversink water heater - water,

£101.99
Buy It Now

» View on eBay
Ariston andris lux oversink - ariston,

Ariston andris lux oversink - ariston,

£144.99
Buy It Now

» View on eBay
Gledhill 3kw immersion - gledhill,

Gledhill 3kw immersion - gledhill,

£32.93
Buy It Now

» View on eBay
3kw electric tankless instant - 3kw,

3kw electric tankless instant - 3kw,

£42.99
Buy It Now

» View on eBay
Ariston andris lux 10l - andris,

Ariston andris lux 10l - andris,

£233.32
Buy It Now

» View on eBay
Heatrae sadia multipoint - multipoint, 10

Heatrae sadia multipoint - multipoint, 10

£394.30
Buy It Now

» View on eBay
Cotherm 3 4 3kw - 1", 3/4"

Cotherm 3 4 3kw - 1", 3/4"

£16.08
Buy It Now

» View on eBay
Atc 3kw instantaneous - atc,

Atc 3kw instantaneous - atc,

£50.00
Buy It Now

» View on eBay
Triton spt303i 3kw - 3kw, handwash

Triton spt303i 3kw - 3kw, handwash

£63.99
Buy It Now

» View on eBay
Triton t30 hand wash water - wash,

Triton t30 hand wash water - wash,

£24.99
Buy It Now

» View on eBay
Heatrae sadia 95010282 - sadia,

Heatrae sadia 95010282 - sadia,

£130.70
Buy It Now

» View on eBay
220v 3kw bathroom kitchen - 220v,

220v 3kw bathroom kitchen - 220v,

£44.99
Buy It Now

» View on eBay
Triton t30i 3kw - triton,

Triton t30i 3kw - triton,

£97.97
Buy It Now

» View on eBay
Ariston andris lux - 15, electric

Ariston andris lux - 15, electric

£130.70
Buy It Now

» View on eBay
Heatrae sadia streamline - heatrae,

Heatrae sadia streamline - heatrae,

£399.99
Buy It Now

» View on eBay
Heatrae sadia streamline under - heatrae,

Heatrae sadia streamline under - heatrae,

£199.00
Buy It Now

» View on eBay
Gledhill direct immersion - gledhill,

Gledhill direct immersion - gledhill,

£26.89
Buy It Now

» View on eBay
Compact 3kw instant - compact,

Compact 3kw instant - compact,

£52.99
Buy It Now

» View on eBay
Triton t30i over sink - triton,

Triton t30i over sink - triton,

£69.99
Buy It Now

» View on eBay
Heatrae sadia streamline - sadia,

Heatrae sadia streamline - sadia,

£189.99
Buy It Now

» View on eBay
Heatstore hw3 3kw - heatstore,

Heatstore hw3 3kw - heatstore,

£67.99
Buy It Now

» View on eBay
Tesla copper 3kw - 11”,

Tesla copper 3kw - 11”,

£15.24
Buy It Now

» View on eBay
Heatrae sadia streamline - sadia,

Heatrae sadia streamline - sadia,

£291.90
Buy It Now

» View on eBay
Electric tankless instant 3kw - tankless,

Electric tankless instant 3kw - tankless,

£42.99
Buy It Now

» View on eBay
Under sink electric water - 5l,

Under sink electric water - 5l,

£45.00
Buy It Now

» View on eBay
3kw hot water heater instant - hot,

3kw hot water heater instant - hot,

£42.99
Buy It Now

» View on eBay
Hot water cylinder copper - water,

Hot water cylinder copper - water,

£28.84
Buy It Now

» View on eBay
Cotherm 3kw immersion - 1,

Cotherm 3kw immersion - 1,

£27.78
Buy It Now

» View on eBay
Alde 3010 water - 3010, printed

Alde 3010 water - 3010, printed

£284.02
Buy It Now

» View on eBay
Heatrae carousel instantaneous - carousel,

Heatrae carousel instantaneous - carousel,

£31.89
Buy It Now

» View on eBay
Willis external immersion - willis,

Willis external immersion - willis,

£79.99
Buy It Now

» View on eBay
Triton instaflow t30i 3kw - instaflow,

Triton instaflow t30i 3kw - instaflow,

£54.78
Buy It Now

» View on eBay
3kw instant electric - instant, tankless

3kw instant electric - instant, tankless

£44.99
Buy It Now

» View on eBay
Dafi water heater repair - dafi,

Dafi water heater repair - dafi,

£9.99
Buy It Now

» View on eBay
360 electric heating water - heating,

360 electric heating water - heating,

£25.99
Buy It Now

» View on eBay
Triton t30i 3kw - triton, electric

Triton t30i 3kw - triton, electric

£69.99
Buy It Now

» View on eBay
3kw electric tankless - electric,

3kw electric tankless - electric,

£57.43
Buy It Now

» View on eBay
Santon aquarius 94010001 - santon,

Santon aquarius 94010001 - santon,

£250.03
Buy It Now

» View on eBay
Heatrae sadia megaflo 3kw - sadia,

Heatrae sadia megaflo 3kw - sadia,

£33.79
Buy It Now

» View on eBay
Tesla copper 3kw - tesla,

Tesla copper 3kw - tesla,

£2.46
Buy It Now

» View on eBay
Heatrae sadia streamline - heatrae, 7

Heatrae sadia streamline - heatrae, 7

£156.69
Buy It Now

» View on eBay
Heatrae sadia multipoint - sadia, 15/3

Heatrae sadia multipoint - sadia, 15/3

£399.99
Buy It Now

» View on eBay
Triton t30i infrared - triton, 240v

Triton t30i infrared - triton, 240v

£89.95
Buy It Now

» View on eBay
Ariston andris lux oversink - andris,

Ariston andris lux oversink - andris,

£73.50
Buy It Now

» View on eBay
Ariston andris lux oversink - ariston,

Ariston andris lux oversink - ariston,

£199.99
Buy It Now

» View on eBay
Electric tankless instant hot - electric,

Electric tankless instant hot - electric,

£42.99
Buy It Now

» View on eBay
H30 hot tub water - h30-r1,

H30 hot tub water - h30-r1,

£74.24
Buy It Now

» View on eBay
Electric instant water - instant,

Electric instant water - instant,

£74.99
Buy It Now

» View on eBay
Ariston europrisma ep10 3kw - ariston, &

Ariston europrisma ep10 3kw - ariston, &

£66.41
Buy It Now

» View on eBay
Energy efficient t30i - energy,

Energy efficient t30i - energy,

£83.20
Buy It Now

» View on eBay
Instant water heater 3kw 220v - water,

Instant water heater 3kw 220v - water,

£40.00
Buy It Now

» View on eBay
Heatrae sadia streamline - sadia,

Heatrae sadia streamline - sadia,

£142.64
Buy It Now

» View on eBay
Santon water heater - santon, undersink

Santon water heater - santon, undersink

£218.71
Buy It Now

» View on eBay
Ariston andris lux - lux, europrisma

Ariston andris lux - lux, europrisma

£193.37
Buy It Now

» View on eBay
Santon aquarius 94010008 - santon, 7

Santon aquarius 94010008 - santon, 7

£258.65
Buy It Now

» View on eBay
Redring rmhw3 instantaneous - redring,

Redring rmhw3 instantaneous - redring,

£75.99
Buy It Now

» View on eBay
Triton t30i 3kw 240v - triton,

Triton t30i 3kw 240v - triton,

£75.11
Buy It Now

» View on eBay
Gledhill 3kw immersion - 3kw,

Gledhill 3kw immersion - 3kw,

£40.75
Buy It Now

» View on eBay
New ariston andris lux 15l - new, 3kw

New ariston andris lux 15l - new, 3kw

£166.24
Buy It Now

» View on eBay
Tesla copper 3kw - 14”,

Tesla copper 3kw - 14”,

£8.47
Buy It Now

» View on eBay
Hyco powerflow smart - powerflow, 100l

Hyco powerflow smart - powerflow, 100l

£400.00
Buy It Now

» View on eBay
Qty zip inline 2 - qty, es

Qty zip inline 2 - qty, es

£208.70
Buy It Now

» View on eBay

Looking for more 3kw water heater?

Search eBay live — fresh results filtered for the best value, updated every hour.

🔍 Search live deals
📊96 listings · from £2.46 · avg £119.03

Browse 96 3kw water heater listings currently in our index. Prices range from £2.46 to £400, with an average of £119.03. 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 3kw water heater →

Try this: baxi solo parts | baxi 105e | biasi riva | breville hot cup | central heating circulation pump | cold water combination valve | danfoss actuator | ferroli heat exchanger | glow worm 2000802731 | glow worm 24cxi

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

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 £2.46, while premium listings can reach £400 — giving you a wide budget spread to work with. The average price of £119.03 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.

🔍 3kw water heater Search live on eBay