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Fish tank heaters

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Fish tank heaters for sale on largest auction and classifieds sites

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Hidom submersible tropical - hidom,

Hidom submersible tropical - hidom,

£12.95
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Hidom proheat quartz aquarium - hidom,

Hidom proheat quartz aquarium - hidom,

£11.45
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Hepo aquarium heater fish tank - aquarium,

Hepo aquarium heater fish tank - aquarium,

£10.99
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Aquarium heater 500w - aquarium,

Aquarium heater 500w - aquarium,

£20.45
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Aquarium heater 500w - heater,

Aquarium heater 500w - heater,

£22.49
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Hidom submersible tropical - submersible,

Hidom submersible tropical - submersible,

£10.95
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200 300 500w led digital - 200/300/500w,

200 300 500w led digital - 200/300/500w,

£10.49
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Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£14.99
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Fluval aquarium heater - fluval,

Fluval aquarium heater - fluval,

£26.99
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Interpet deltatherm - interpet,

Interpet deltatherm - interpet,

£8.95
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Aquarium water heater aqua - heater,

Aquarium water heater aqua - heater,

£12.55
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200w aquarium water heater - aquarium,

200w aquarium water heater - aquarium,

£10.89
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Simply aquarium titanium - simply,

Simply aquarium titanium - simply,

£79.95
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Hidom proheat quartz - hidom, aquarium

Hidom proheat quartz - hidom, aquarium

£18.45
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Hidom aquarium heater - hidom,

Hidom aquarium heater - hidom,

£9.65
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50w 500w led digital aquarium - led,

50w 500w led digital aquarium - led,

£20.66
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200 300 500w led - 200/300/500w, digital

200 300 500w led - 200/300/500w, digital

£17.77
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Stainless steel aquarium - stainless,

Stainless steel aquarium - stainless,

£9.34
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10w usb mini aquarium - usb, heater

10w usb mini aquarium - usb, heater

£5.49
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Aquarium water heater aqua - aquarium,

Aquarium water heater aqua - aquarium,

£12.59
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Mini thermostat heater - mini,

Mini thermostat heater - mini,

£7.59
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Submersible aquarium tropical - submersible,

Submersible aquarium tropical - submersible,

£18.99
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Superfish aquarium heater - superfish,

Superfish aquarium heater - superfish,

£13.95
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25w 300w submersible - 300w,

25w 300w submersible - 300w,

£7.86
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Watt resun aquarium heater - 50,

Watt resun aquarium heater - 50,

£8.66
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Replacement aquarium - replacement,

Replacement aquarium - replacement,

£3.39
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Eheim thermocontrol heater - eheim,

Eheim thermocontrol heater - eheim,

£24.99
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Interpet deltatherm aquarium - deltatherm,

Interpet deltatherm aquarium - deltatherm,

£17.74
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Hidom quartz submersible - hidom,

Hidom quartz submersible - hidom,

£18.45
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50w aquarium heater - 50w,

50w aquarium heater - 50w,

£11.45
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Hidom submersible heater - heater, &

Hidom submersible heater - heater, &

£12.45
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External heater thermostat for - external,

External heater thermostat for - external,

£34.99
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Usb mini aquarium - usb, heating

Usb mini aquarium - usb, heating

£5.99
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100 200 300w aquarium - 100/200/300w, fish

100 200 300w aquarium - 100/200/300w, fish

£10.58
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Mini small aquarium fish tank - aquarium,

Mini small aquarium fish tank - aquarium,

£7.29
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10w mini aquarium heater - mini,

10w mini aquarium heater - mini,

£14.09
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Usb mini aquarium - aquarium, fish

Usb mini aquarium - aquarium, fish

£8.95
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Hepo submersible aquarium fish - hepo,

Hepo submersible aquarium fish - hepo,

£10.29
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Aquarium heater 500w - heater,

Aquarium heater 500w - heater,

£20.49
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Aquarium heater 500w - heater,

Aquarium heater 500w - heater,

£20.43
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Hygger small fish tank - hygger,

Hygger small fish tank - hygger,

£21.99
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Fluval series aquarium - fluval,

Fluval series aquarium - fluval,

£26.99
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Fish fun heater thermostat - fish, r

Fish fun heater thermostat - fish, r

£9.99
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Fluval m150 submersible fish - m150,

Fluval m150 submersible fish - m150,

£20.99
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Oase heat aquarium fish - aquarium,

Oase heat aquarium fish - aquarium,

£18.79
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Interpet nano stat aquarium - nano,

Interpet nano stat aquarium - nano,

£20.12
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Juwel automatic heater - automatic,

Juwel automatic heater - automatic,

£28.49
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100 200w aquarium water - aquarium,

100 200w aquarium water - aquarium,

£12.15
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New submersible aquarium - new,

New submersible aquarium - new,

£9.86
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Fluval p25 pre - heater, 25w

Fluval p25 pre - heater, 25w

£9.99
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150w fish tank - fish, heater

150w fish tank - fish, heater

£11.25
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200 300 500w led digital - led,

200 300 500w led digital - led,

£17.94
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Aquael plastic ultra heater - aquael,

Aquael plastic ultra heater - aquael,

£32.49
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25w 300w submersible aquarium - 25w-300w,

25w 300w submersible aquarium - 25w-300w,

£9.99
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Submersible digital aquarium - submersible,

Submersible digital aquarium - submersible,

£11.93
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Submersible aquarium eco - uk,

Submersible aquarium eco - uk,

£10.45
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Hitop 668 50w aquarium - hitop,

Hitop 668 50w aquarium - hitop,

£9.99
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Aquarium water heater aqua - water,

Aquarium water heater aqua - water,

£12.15
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Superfish aquarium fish tank - aquarium,

Superfish aquarium fish tank - aquarium,

£14.95
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Fish tank heater submersible - heater,

Fish tank heater submersible - heater,

£11.95
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Superfish pro heater - pro, tropical

Superfish pro heater - pro, tropical

£19.99
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Usb mini aquarium - mini, heating

Usb mini aquarium - mini, heating

£4.79
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200 300 500w - 200/300/500w, led

200 300 500w - 200/300/500w, led

£16.93
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Betta thermal compact - betta,

Betta thermal compact - betta,

£7.00
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200w aquarium water heater - aquarium,

200w aquarium water heater - aquarium,

£11.85
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Betta thermal compact - betta,

Betta thermal compact - betta,

£12.99
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Aquarium fish tank heater - aquarium,

Aquarium fish tank heater - aquarium,

£5.99
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Hobby aquarium heater - aquarium,

Hobby aquarium heater - aquarium,

£6.80
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Aqqa aquarium heater 500w - aquarium, ptc

Aqqa aquarium heater 500w - aquarium, ptc

£49.04
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Aquarium 50w 500w - 50w, to

Aquarium 50w 500w - 50w, to

£15.06
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220 240v 100w small - 220/240v,

220 240v 100w small - 220/240v,

£10.96
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1pc 10w new mini - new,

1pc 10w new mini - new,

£6.26
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Aquarline 150w heater - aquarline,

Aquarline 150w heater - aquarline,

£8.50
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10w usb mini - usb, heater

10w usb mini - usb, heater

£4.98
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Superfish eco aquarium heater - eco,

Superfish eco aquarium heater - eco,

£14.99
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Econoherm 150w submersible - econoherm,

Econoherm 150w submersible - econoherm,

£10.15
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25w aquarium heater - 25w,

25w aquarium heater - 25w,

£10.95
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Aquarline econotherm 100w - aquarline,

Aquarline econotherm 100w - aquarline,

£9.99
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Best seller submersible - uk,

Best seller submersible - uk,

£10.52
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Usb mini aquarium - usb, 10w

Usb mini aquarium - usb, 10w

£5.58
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Hydor eth 300w line - hydor,

Hydor eth 300w line - hydor,

£31.90
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Submersible aquarium fish tank - submersible,

Submersible aquarium fish tank - submersible,

£7.22
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Oase heat aquarium heater - oase,

Oase heat aquarium heater - oase,

£23.90
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Usb mini aquarium heating rod - heating,

Usb mini aquarium heating rod - heating,

£5.38
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Aquarium heater 500w - heater,

Aquarium heater 500w - heater,

£27.99
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50w 500w led digital aquarium - 50w-500w,

50w 500w led digital aquarium - 50w-500w,

£17.80
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10w usb mini aquarium heater - usb,

10w usb mini aquarium heater - usb,

£5.39
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Hydor theo watt - theo, 50

Hydor theo watt - theo, 50

£6.51
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100w aquarium heater led - heater,

100w aquarium heater led - heater,

£11.95
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Aquarium tropical marine - /,

Aquarium tropical marine - /,

£13.99
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Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£11.45
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Aquarium 50w 500w digital - 50w, to

Aquarium 50w 500w digital - 50w, to

£16.62
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Fluval m50 submersible - fluval,

Fluval m50 submersible - fluval,

£20.29
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Aquarium heater aqua one - one, glass

Aquarium heater aqua one - one, glass

£13.72
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Aquael platinium glass heater - aquael,

Aquael platinium glass heater - aquael,

£19.95
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500w led digital aquarium - 500w,

500w led digital aquarium - 500w,

£14.54
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📊96 listings · from £3.39 · avg £15.01
⚠️ These listings were last updated more than 17 days ago. Search for fresh listings

Browse 96 fish tank heaters listings currently in our index. Prices range from £3.39 to £79.95, with an average of £15.01. 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 fish tank heaters →

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Everything you need to know about fish tank heaters

Whether you are looking for a brand-new or second-hand fish tank heaters, 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 £3.39, while premium listings can reach £79.95 — giving you a wide budget spread to work with. The average price of £15.01 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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