Fish tank heaters
Fish tank heaters for sale on Ireland's largest auction and classifieds sites
Budget picks — under £11
Mini thermostat heater • Compact efficient submersible • Aquariums tank capacity - Free postage - New and Used
This aquarium fish • Tank heater 50w • Unit boxed has - Free postage - New and Used
You keep your • Aquarium correct temperature • Fish can live - Free postage - New and Used
Piece fish tank • Heater rod mini • More beautiful usb - Free postage - New and Used
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Ensure your aquatic • Friends stay happy • Healthy fish fun - Free postage - New and Used
Browse 48 fish tank heaters listings currently in our index. Prices range from £6.52 to £59.99, with an average of £18.06. 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 →
Hidom aquarium heater • Trusted fishkeepers its • Reliability ease use - Free postage - New and Used
You keep your • Aquarium correct temperature • Fish can live - Free postage - New and Used
Piece fish tank • Heater rod mini • More beautiful usb - Free postage - New and Used
Usage place heater • Bar vertically horizontally • Aquarium make indicator - Free postage - New and Used
Usage place heater • Bar vertically horizontally • Aquarium make indicator - Free postage - New and Used
Interpet deltatherm aquarium • Fish tank heater • Delta mini 15w - Free postage - New and Used
Piece fish tank • Heater rod mini • More beautiful usb - Free postage - New and Used
Sizes available 25w • 50w 75w 100w • 150w 200w 250w - Free postage - New and Used
- Free postage - New and Used
Tanks 300l tropical • Reef 300w fish • Tank aquarium heater - Free postage - New and Used
These quality heaters • Are easy adjust • Will regulate temperature - Free postage - New and Used
Mid-range — £12 to £16
Aquarium heater durable • Safe construction made • Thicker explosion proof - Free postage - New and Used
Hidom proheat series • Quartz glass aquarium • Heater has been - Free postage - New and Used
Dual heating wires • Ensures uniform stable • Energy efficiency long - Free postage - New and Used
These quality heaters • Are easy adjust • Will regulate temperature - Free postage - New and Used
Dual heating wires • Ensures uniform stable • Energy efficiency long - Free postage - New and Used
Superfish pro heater • 300w whether your • Tank cosy room - Free postage - New and Used
You are purchasing • High quality 300w • Use aquarium 300 - Free postage - New and Used
Fish tank aquarium • Heating rod fresh • Sea water can - Free postage - New and Used
These quality heaters • Are easy adjust • Will regulate temperature - Free postage - New and Used
Betta compact heater • Watt suitable aquariums • Aquarium heaters are - Free postage - New and Used
Fish tank aquarium • Heating rod fresh • Sea water can - Free postage - New and Used
Interpet aquatherm aquarium • Heaters are accurate • Tool ensure correct - Free postage - New and Used
Hidom proheat series • Quartz glass aquarium • Heater has been - Free postage - New and Used
Power 50w 100w • 200w 300w 500w • Fish tank aquarium - Free postage - New and Used
300w tank 270 • 180 200l 50w • 100l aquarium fish - Free postage - New and Used
Preset heater set • Degrees appropriate most • Tropical fish shrimp - Free postage - New and Used
Premium — over £16
This submersible heater • Perfect addition your • Tropical fish tank - Free postage - New and Used
Fish tank aquarium • Heating rod fresh • Sea water can - Free postage - New and Used
Hidom proheat series • Quartz glass aquarium • Heater has been - Free postage - New and Used
Aquarium heater 300w • Comes digital led • Display temperature controller - Free postage - New and Used
Oase heatup heaters • Are available 25w • 50w 75w 100w - Free postage - New and Used
Say farewell chilly • Waters hello toasty • Haven 300w suitable - Free postage - New and Used
Eheim jager • 250w such have • Huge wealth experience - Free postage - New and Used
Fluval t300 digital • Aquarium heater 360 • Indicator light ring - Free postage - New and Used
360 indicator light • Ring displays heat • Mode clearly from - Free postage - New and Used
Suitable aquariums 300l • Available five sizes • These heaters cater - Free postage - New and Used
This heater can • Only connected external • Canister filter outlet - Free postage - New and Used
Jbl protemp line • Heater integrated into • Hose external aquarium - Free postage - New and Used
Unparalleled durability our • Titanium aquarium heaters • Are engineered withstand - Free postage - New and Used
Fluval series electronic • Fish tank heaters • 50w aquariums 60l - Free postage - New and Used
Protemp line heaters • Are very easy • Install simply cut - Free postage - New and Used
Such have huge • Wealth experience online • Trading present list - Free postage - New and Used
Try this: large fish tanks | aquarium cabinets | fish tank decorations | fluval aquariums | glass tanks | lava rock | betta fish tanks | aquarium equipment | saltwater tank | freshwater tropical fish
🔥 Best eBay deals on fish tank heaters
See all listings on eBay →These 48 listings for fish tank heaters are the lowest-priced items currently in our index. Prices are sorted ascending so you can quickly gauge the market before going further.
Mini Thermostat Heater Fish
Mini thermostat heater • Compact efficient submersible • Aquariums tank capacity
£7
DoRight Submersible Aquarium
This aquarium fish • Tank heater 50w • Unit boxed has
£7
Submersible IP68 Aquarium Fish
You keep your • Aquarium correct temperature • Fish can live
£8
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 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 £6.52, while premium listings can reach £59.99 — giving you a wide budget spread to work with. The average price of £18.06 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.