Editor's Choice - Our Favorite Eheim Aquarium Heaters

1. Eheim Jager Aquarium Thermostat Heater

User Ratings: 72 7

Eheim 3619090 First Impressions

"I angled it."

For Discus you need warm and accurate heater and this seems to do the trick. I wouldn't buy any other heater, unless one of these stops working. Maintains it well except when the weather is already warm then it over heats it. I like how the heater is constructed. This is only day one though, so I shall keep an eye one it. The design is sleek and modern looking. Pressing and holding the button for 5 seconds changes it from F to C readouts.

  • Eheim Jager Aquarium Thermostat Heater
  • Fully submersible
  • Thermo safey control protects against running dry
  • Will automatically turn off when water level dips too low
  • TruTemp dial recalibrates the heater for precise temperature regulation
  • Made of shock resistant and shatter proof glass for fresh or marine water
  • On/Off indicator light for at-a-glance monitoring
  • Manufacture: Eheim
  • Editor's Impressions Of The Eheim 3619090
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim 3619090 Final Thoughts

"Long heater."

This is only day one though, so I shall keep an eye one it. We would consider a replacement and then we would return the defective unit. I will definitely be buying another one for my other tanks at bigger one. They shipped us the upgraded version that also heats! And kids love pushing all sorts of buttons. We received the chiller promptly and put it into use. I got a hold of Amazon, who put me in touch with the seller.

Overall Score
4.4


(3152 Points)

Peoples Choice - Other Highly Rated Eheim Aquarium Heaters

2. Ehm Heater Jager 300w

User Ratings: 72 7

Eheim First Impressions

"Works fine."

But I am single and don't have to worry about this. I noticed my old hygger heater beginning to fail and my wife ordered this one. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. Well I bought a second one took me only one trying to get the right temperature. So if you set it to 78 degrees, the heater will not kick on until it reads 76. No biggie, but annoying nonetheless. I went ahead and went with the the larger 300W for my 45 gallon.

  • Ehm Heater Jager 300w
  • Jager Trutemp Aquarium Heater 20" 300 Wt
  • Manufacture: EHEIM
  • Editor's Impressions Of The Eheim
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim Final Thoughts

"Quality was amazing."

If the water runs low or air gets in the heater shuts off. This heater warmed it right up and now my Betta and guppies are more active. We would consider a replacement and then we would return the defective unit. The temperature has been holding all day, even in a colder room. It is a bonus that the heater is titanium. It just cycles through to 93f and starts over. Seems to keep the temp n the tank fairly regular.

Overall Score
4.4


(53 Points)

3. Eheim Thermocontrol e300 Heater

User Ratings: 89

Eheim AEH3639090 First Impressions

"Until the next time."

Once I opened the box i noticed the quality of the construction. I got this heater for my 55 gallon aquarium. Very easy to install and the adjustable temperature gauge is pretty accurate. You don't have to worry about wide temperature swings with this unit. Awesome chiller, perfect for Hydroponics. I emailed the email it says to and told them. This heater warmed it right up and now my Betta and guppies are more active.

  • Eheim Thermocontrol e300 Heater
  • Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications Wattage: 300W Temperature setting range: 68°F to 89°F (20 to 32°C) Aquarium Size (approx. ) 159-265 Gallons Height: 19. 5" Power Cord Length: 5. 5'
  • Item Package Height: 1.97
  • Item Package Length: 2.56
  • Item Package Width: 23.03
  • Manufacture: Eheim
  • Editor's Impressions Of The Eheim AEH3639090
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim AEH3639090 Final Thoughts

"5 gallon tank."

210 gallon ones and one 90 gallon bow front tank. Takes a little while to drop the temps if it is hot in the garage. It took me only two tries to get it to the correct temperature. If the water runs low or air gets in the heater shuts off. We would consider a replacement and then we would return the defective unit. I like to keep it at 72 and from my thermometer it is reading at exactly 72. It is a bonus that the heater is titanium.

Overall Score
4.8


(11 Points)

4. Eheim Thermocontrol e50 Heater

User Ratings: 77 23

Eheim AEH3632090 First Impressions

"Works just as advertised!"

This is a great heater that is very easy to set up and program. It is a bonus that the heater is titanium. Beware, but we are hoping for a good outcome! When i installed them, i let them sit in the tanks without power for 6-24 hours. It's only been set up for a month we'll see how well it does in a few months. I appreciate the exterior temp readout and control module. I got this heater for my 55 gallon aquarium.

  • Eheim Thermocontrol e50 Heater
  • Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications Wattage: 50W Temperature setting range: 68°F to 89°F (20 to 32°C) Aquarium Size (approx. ) 6. 5-15 Gallons Height: 9. 2" Power Cord Length: 5. 5'
  • Item Package Height: 3.0
  • Item Package Length: 20.0
  • Item Package Width: 3.0
  • Manufacture: Eheim
  • Editor's Impressions Of The Eheim AEH3632090
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim AEH3632090 Final Thoughts

"So far so good."

I appreciate the exterior temp readout and control module. Seems to keep the temp n the tank fairly regular. I left seller feedback yesterday but have yet to hear from the seller. Also were nice along the whole process. I used to try those other cheap heaters sold on amazon. The temperatures are pretty accurate. I would definitely recommend this product.

Overall Score
4.1


(6 Points)

Honorable Mentions - More Top Selling Eheim Aquarium Heaters

5. Eheim Thermocontrol e100 Heater

Eheim AEH3634090 First Impressions

"The seller was wonderful."

So when I first received it it didn't work and I was very disappointed. Was very impressed with the quality of this heater. The red light means it's off, blue light means the temperature is constant. Temperature is slightly off by running a little warmer. I have 3 of the Fluval heaters, in various sizes. I wouldn't buy any other heater, unless one of these stops working. For Discus you need warm and accurate heater and this seems to do the trick.

  • Eheim Thermocontrol e100 Heater
  • With the EHEIM thermocontrol-e heating element your fish get the right temperature even more precisely - in every aquarium. The EHEIM thermocontrol aquarium control heater is a further development of the legendary heating element and thermocontrol-e is the latest electronically controlled variant. The obvious ideas are often the best. This also applies to the aquarium heating element. It is simply hung in the water and heats it up. The principle is the same as it was decades ago. But in the meantime the EHEIM controller heater has become an ultra-modern thermal device. The temperature can be set precisely from 68°F to 89°F. It is measured even more precisely and kept more constant by the electronics with a control accuracy of 0. 5 °C. The heat is kept constant with an LED that indicates the heating function. The coating on the heater is made of special laboratory glass that increases the heating surface, serves as a heat shield and ensures even heat emission. There are no cracks and hairline cracks through which condensation water could pass. It is impact resistant. And even extreme temperature fluctuations, such as those that may occur during water changes, do not affect this glass. The heater is absolutely waterproof, can be fully immersed, has a dry run protection (Thermo Safety Control) and is suitable for fresh and marine water. Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications
  • Item Package Height: 3.0
  • Item Package Length: 25.0
  • Item Package Width: 3.0
  • Manufacture: Eheim
  • Editor's Impressions Of The Eheim AEH3634090
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim AEH3634090 Final Thoughts

"The FreeSea is amazing."

I confirm it with my cooking digital probe thermometer. Just be careful and keep an eye on your temp settings when you have kids over! It took me only two tries to get it to the correct temperature. This has been in my fish tank for a few months now and it's been absolutely perfect! Very easy to install and the adjustable temperature gauge is pretty accurate. I think it works well to not stand out like other heaters. I got a hold of Amazon, who put me in touch with the seller.

Overall Score
5.0


(4 Points)

6. Eheim Thermocontrol e250 Heater, Black (AEH3638090)

Eheim AEH3638090 First Impressions

"It is a bit pricey."

I contacted the manufacturer and they sent me a new unit in less than a week! Ick for instance detaches from fish at 86 degrees and dies at 89. At this time I highly recommend this product. Those turned out to be a hit and miss. This heater is NOT fully submersible. Ick for instance detaches from fish at 86 degrees and dies at 89. The design is sleek and modern looking.

  • Eheim Thermocontrol e250 Heater, Black (AEH3638090)
  • Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications Wattage: 250W Temperature setting range: 68°F to 89°F (20 to 32°C) Aquarium Size (approx. ) 106-159 Gallons Height: 17. 4" Power Cord Length: 5. 5'
  • Item Package Height: 3.0
  • Item Package Length: 25.0
  • Item Package Width: 3.0
  • Manufacture: Eheim
  • Editor's Impressions Of The Eheim AEH3638090
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim AEH3638090 Final Thoughts

"Perfect heater for my 2."

It took me a few days slowly turning the dial up to finally get it where I wanted. I like how the heater is constructed. The bonus digital thermometer it came with has been super helpful, and is accurate. The heater protector was very heavy plastic and slim lined which is great. This has the best controller that I have found on the market. You don't have to worry about wide temperature swings with this unit. This is only day one though, so I shall keep an eye one it.

Overall Score
5.0


(2 Points)

7. LUYS Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatical...

User Ratings: 87 2

LUYS First Impressions

"Very easy and accurate."

No biggie, but annoying nonetheless. This heater is NOT fully submersible. Personally for me the housing doesn't bother me. The temperatures are pretty accurate. The temperatures are pretty accurate. I am very happy with this purchase. Will update my review if any changes occur.

  • LUYS Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Over Temperature Protection System, Suitable for Marine Saltwater and Freshwater
  • 【Intelligent Water Sensor and Over Temperature Protection】This aquarium heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety.
  • 【Explosion-proof Quartz Material】The aquarium heater is made of high-quality quartz glass tube, it's very durable and explosion-proof, this fish tank heater can be used for saltwater and freshwater aquariums, which is pretty shatter-proof and blast-proof and prevents electricity leakage. And the stronger black protective container is scald-preventing for your aquatic organisms and your safety.
  • 【Rapid Heating System】The voltage of this aquarium heater is 100-120V/50-60HZ, power 300W, Universal two-pin plug, heater rod length 12.99 inch, 300W submersible heater for fish tank 26-66 gallon, Temp range: 62-93℉. The heating tube can conduct heat quickly and fully contact with water to achieve rapid heating effect.
  • 【Digital LED Display Controller】the external IC temp controller of the fish tank heater can show the water temp with 2 red LED digits. The temperature in Fahrenheit and Celsius is displayed, which can be switched by pressing and holding the button for a few seconds. To set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done and the led shows the current water temp again.
  • 【Wide Range of Use】This aquarium heater is suitable for many occasions. The fish market is a common place for us. It can maintain the freshness of fish. They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept. There are strong suction cups on the heater guard and the thermometer, it's easy to install the aquarium heater no to the tank walls or bottom, please keep them fully submerged.
  • Manufacture: LUYS
  • Product Dimensions: 12.99 x 1.38 x 1.77 inches; 1.57 Pounds
  • Editor's Impressions Of The LUYS
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

LUYS Final Thoughts

"Overall happy."

The temperature gauge is fairly accurate in my 55 gallon tank. If the blue light is flashing it means the heater is not fully submersible. Sometimes it gets outside of it's ability to cool but only within a few degrees. Ick for instance detaches from fish at 86 degrees and dies at 89. I hope these suction cups work very well. There is no protection from it banging on the glass tank. The heater is being used in a 40 gallon breeder.

Overall Score
4.8


(87 Points)

8. n a Aquarium Heater,25W 50W Aquarium Fish Tank Submersible Heater,Anti-Scald Fish, with Water Shorta...

User Ratings: 60 8

N / A First Impressions

"I setup a 5."

Those turned out to be a hit and miss. I went ahead and went with the the larger 300W for my 45 gallon. Seems to keep the temp n the tank fairly regular. Product was received fast, works excellent! Ick for instance detaches from fish at 86 degrees and dies at 89. The heater is easy; turn the dial to set temp and plug in. I had a thermometer on opposite side of tank and the heater was dead on true.

  • n a Aquarium Heater,25W 50W Aquarium Fish Tank Submersible Heater,Anti-Scald Fish, with Water Shortage Protection and Aquarium Thermometer, for 3 to 25 Gallon Fish Tank Water Tank
  • [Automatic temperature control chip]: Aquarium Heater can automatically adjust the temperature between 77 ° F and 82 ° F (25 ° C to 28 ° C). It is different from the traditional manual adjustment of other aquarium heaters, without setting. It will automatically turn on / off to reach the set temperature continuously and steadily.
  • [Gift temperature sticker]: Paste the temperature sticker to the surface of the water tank, and you can use it to monitor the temperature.
  • [Stable and high-grade materials]: strong industrial plastics, non-toxic and durable. It has explosion-proof, anti-expansion functions, high temperature resistance and safety. Suitable for betta fish, such as turtles and lace. Length-13.97 cm, width-2.29 cm, thickness-1.68 cm.
  • [What capacity is suitable]: 25W fish tank heater is suitable for 9.83 liters to 1.83 liters, and can be used for mini fish tanks and aquariums. This aquarium heater is equipped with a suction cup, which can be easily absorbed in the aquarium. Easy to hide in the water tank.
  • [Warranty and quality assurance]: We provide 24-hour guidance service, you can contact us at any time, and one year of quality problems return service. This product aquarium heater has passed CE, ROHS, FCC certification. Explosion-proof, waterproof, anti-expansion, high temperature and other safe operations.
  • Manufacture: n a
  • Product Dimensions: 5.3 x 1 x 0.7 inches; 6.14 Ounces
  • Editor's Impressions Of The N / A
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

N / A Final Thoughts

"Overall happy."

The heater is super thin and the reflective surface is interesting. The temperature lights up so it's very easy to read. I think it works well to not stand out like other heaters. The temperature difference was very minor. Awesome chiller, perfect for Hydroponics. This is a great heater that is very easy to set up and program. Easy to read the temp and know exactly how warm the water is.

Overall Score
4.1


(51 Points)

9. hygger 200W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 15-30 Gallo...

User Ratings: 73 9

hygger HG-925 First Impressions

"Works fine."

I went ahead and went with the the larger 300W for my 45 gallon. It comes with a hanging kit and can be secured on the edge of the tank. I got a hold of Amazon, who put me in touch with the seller. Very easy to install and the adjustable temperature gauge is pretty accurate. Two inches above that is a waterline for maximum. This is a great heater that is very easy to set up and program. The temperature difference was very minor.

  • hygger 200W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 15-30 Gallon
  • This fully submersible aquarium heater enables memory function and over heat protection. Auto shut off when over-heats, resets when it cools down
  • Made with premium quartz and double sealed by black protective guard, this fish tank heater is resistant to corrosion, and protect fish and other livestocks from punching and scalding
  • Build-in external IC temp controller, easy to read blue LED digital number shows real time water temperature. Heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature. Temp accuracy is +/- 1°F
  • Easy to set temperature without getting hands wet. Temperature can be precisely adjusted from 61 to 90°F (16°C ~ 32°C). Just press set button to desired temperature, it blinks 3 seconds and begins to work
  • 200 watt aquarium heater, voltage 110-120 V, heater rod 6.3 inches long, suitable for tank capacity 15-30 gallon freshwater and saltwater aquariums
  • IP68 100% Waterproof, Fully Submersible
  • Dual Protection - Durable Quartz Tube, resistant to corrosion; Double sealed material and protective container for scald preventing and anti punching Accurate temperature control from 61°F to 90°F (16°C ~ 32°C)
  • Easy to read blue LED digital display shows water temperature
  • Manufacture: hygger
  • Editor's Impressions Of The hygger HG-925
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger HG-925 Final Thoughts

"Overall happy."

At this time I highly recommend this product. I wouldn't buy any other heater, unless one of these stops working. The controller is easy to use, very accurate and reliable. Personally for me the housing doesn't bother me. So if you set it to 78 degrees, the heater will not kick on until it reads 76. --Temperature adjustment labeling is on top rather than on the rod. The heater is being used in a 40 gallon breeder.

Overall Score
4.3


(31 Points)

10. PASTE 300W 500W Aquarium Heater Submersible, 50-90 Gallon Fish Tank Heater with Durable Quartz Glass...

User Ratings: 68 11

PASTE First Impressions

"Same suckers for years!"

Personally for me the housing doesn't bother me. And I get to keep the first one I bought! The temperatures are pretty accurate. It is safe and dependable and comes with a one year warranty. It would stick out of my 30 g wide tank if I were to put it vertical. This does a great job at regulating the temp in my 10 gallon. When i installed them, i let them sit in the tanks without power for 6-24 hours.

  • PASTE 300W 500W Aquarium Heater Submersible, 50-90 Gallon Fish Tank Heater with Durable Quartz Glass and Protective Sleeve 3 Suckers Auto Thermostat for Fresh-Water and Salt-Water…
  • [SAFE AND DURABLE]: High quality Quartz Glass has Explosion-proof Shatterproof Shield-proof Design than conventional glass. Extra protective Sleeve updated for Anti-melting anti punching prevents electricity leakage, multiple sealed material. Provide the safety of living environment for your aquatic creatures
  • [USED WIDELY]: This 300W Fish Tank Heater is suitable for aquariums from 50 to 80 gallons (150-250 liters), is great for both Fresh Water and Marine Water aquariums, and you can choose the appropriate temperature for your fish, turtle, and plants.(The suitable temperature range for most tropical fish is 76°F to 80°F/24°C -27°C )
  • [ACCURATE THERMAL CONTROL]: Set and adjust the desired temperature with the use of the Temperature Controller on the top. The adjusting range is between 68°F~94°F (20°C~34.5°C),which allows for complete control of aquatic climate within a 2-degree difference. The small dot between each 2 numbers means 2 degree. At the same time has the automatic constant temperature function, builds the overheat and the water shortage protection mechanism
  • [INSTALLATION EASILY]: The 300 watt heater aquarium comes with 3 powerful suction cups to help you easily mount the heating rod vertically or horizontally in the tank, preferably horizontally near the water inlet and outlet to ensure that the tank is warm in all corners.
  • [SATISFACTION GUARANTEED]: Our fish tank heater 300 watt is built with durability in mind and safety for every design, In the remote possibility that you’re not satisfied with our product, just contact us, our customer service staff will respond within 12 hours and provide professional after-sales service. We hope to hear your advise the first time. Please be sure to leave a comment for us after you purchase. Thank you for your choice.
  • Manufacture: PASTE
  • Product Dimensions: 16.5 x 1.4 x 1.4 inches; 14.67 Ounces
  • Editor's Impressions Of The PASTE
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

PASTE Final Thoughts

"Buy with confidence!"

Two inches above that is a waterline for maximum. It comes with a hanging kit and can be secured on the edge of the tank. Sometimes it gets outside of it's ability to cool but only within a few degrees. This has the best controller that I have found on the market. I was worried about the quality but I am thoroughly impressed with this heater! I have it set to 81F to get a 77F water temp. This product came in the nick of time!

Overall Score
4.3


(67 Points)

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