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. PERSUPER Submersible Aquarium Heater Adjustable LED Digital Temperature Display Fish Tank Heater for...

User Ratings: 62 12

PERSUPER First Impressions

"And I am glad I did."

I'm not a big fan of the big glass tubes. Am a totally sold customer and would recommend them to anybody! There is no protection from it banging on the glass tank. There is no protection from it banging on the glass tank. Keeps the temperature within 1 degree of what you set it to at all times. The temperature lights up so it's very easy to read. I had a thermometer on opposite side of tank and the heater was dead on true.

  • PERSUPER Submersible Aquarium Heater Adjustable LED Digital Temperature Display Fish Tank Heater for Turtle Betta Fish Water Heater with Protective Guard
  • Accurate temperature control: the intelligent IC chip is used for the aquarium heater. Press and hold the temperature control button for 3 seconds, switch between Fahrenheit and Celsius, and it is easy to control the temperature between 68 ° f / 20 ° C and 94 ° f / 34 ° C; this heater provides the best living environment for your aquatic organisms.
  • Safety assurance: it adopts the highest waterproof grade IP68, titanium pipe material, explosion-proof and anti-corrosion. When heating, it is more resistant to damage than the traditional glass heater, and has the function of overheating and water shortage protection. External temperature controller: touch the button controller to adjust the temperature without wetting your hands.
  • Automatic constant temperature function: when the water temperature reaches the specified temperature, the heater will automatically stop heating, when the water temperature is lower than the set temperature, the heater will automatically start heating.
  • Easy to use: submersible heaters are suitable for all types of aquariums; they are installed vertically or horizontally to ensure that the equipment is completely submerged. The heating rod shall be completely immersed in water and cannot be heated without water. Please unplug the power supply when cleaning the fish tank or replacing the water in the fish tank.
  • Wide compatibility: aquarium heater with CE, FCC and ROHS certification, plug with UL certification; suitable for fresh water and marine aquarium, aquaculture, glass containers and aquaculture system. 12 months warranty, 24-hour professional after-sales service.
  • Manufacture: PERSUPER
  • Editor's Impressions Of The PERSUPER
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

PERSUPER Final Thoughts

"I would buy again."

Thanks for the great customer service! --The cylinder or rod diameter is bigger. My marina heater takes a few hours. I'm in the process of setting up for tanks. Awesome chiller, perfect for Hydroponics. It's only been set up for a month we'll see how well it does in a few months. The heater is easy; turn the dial to set temp and plug in.

Overall Score
4.1


(190 Points)

8. hygger Submersible Aquarium Heater, Adjustable Fish Tank Heater Compact Reliable Betta Heater, Heat-...

User Ratings: 63 11

hygger First Impressions

"That wasn't a good sign."

We wish the controls were available in Farenheit also to make things a little easier. After several weeks of running the heater. Come on Fluval, expect better from you. It just cycles through to 93f and starts over. I adjusted the set temperature a little lower to be more in the range I wanted. I appreciate the exterior temp readout and control module. Just be careful and keep an eye on your temp settings when you have kids over!

  • hygger Submersible Aquarium Heater, Adjustable Fish Tank Heater Compact Reliable Betta Heater, Heat-Resistant Milky Quartz Made, with External Temp Controller, 100W/300W, 10-60 Gallon
  • 【For Fish Tank 30-60 gallon】300W aquarium heater, voltage 110-120V, power cord is 5.4ft, please choose the right wattage aquarium heater according to our size chart. Don't suggest use this heater in sump or a tank with turtles in
  • 【Reliable & Safty Protection】automatically shut off when fault occurs. Effectively maintain the tank water in the constant temp you set, stop heating when the water temp is 1.5-2℉ above the set temp and restart heating when the water temp is 1.5-2℉ below the set temp
  • 【Temp adjustable】with external temp controller, set the temp to one of these values you can see on the dial: 75, 77, 79, 81, 83, 85, 87, 89, 91 by rotating the pointer, the heater will not work if you set the temp to other degrees between those values. Temp exactness is within 2 degrees in fahrenheit. There is a built-in thermometer in the heater to detect the water temp
  • 【Durable & Compact】this aquarium heater tube is heat-resistant milky quartz made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more. A very compact heater, easy to hide in the tank
  • 【Fully Submersible】this fish tank heater is waterproof, must be fully submerged in water when working, stick it horizontally onto the tank side near the water intake or where the way of water flow
  • Voltage: 100-120V
  • Frequency: 60HZ
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"9 degrees."

The line is there due to regulations in certain countries. I left seller feedback yesterday but have yet to hear from the seller. Easy to read the temp and know exactly how warm the water is. It's only been set up for a month we'll see how well it does in a few months. Those turned out to be a hit and miss. I tested it by unplugging and replugging it. I dont know, and havent tried just yet.

Overall Score
4.1


(569 Points)

9. HITOP Adjustable Submersible Aquarium Heater, 50W 100W 120W Fish Tank Heater for 5-35 Gallon (50W fo...

User Ratings: 68 7

HITOP First Impressions

"Until the next time."

Come on Fluval, expect better from you. We wish the controls were available in Farenheit also to make things a little easier. Easy to read the temp and know exactly how warm the water is. There is no protection from it banging on the glass tank. I was worried about the quality but I am thoroughly impressed with this heater! The temperature has been holding all day, even in a colder room. This is a powerful heater that holds temperature very well.

  • HITOP Adjustable Submersible Aquarium Heater, 50W 100W 120W Fish Tank Heater for 5-35 Gallon (50W for 5-10 Gallon)
  • [Size]: 100W aquarium heater with cover Height:9.5in/diameter:1.5in. Situable for fish tank 10-35gallon(fresh water and seawater).
  • [Safety design]: This is a glass aquarium heater with a strong protective cover, which can effectively prevent fish or turtles from hitting and touching. Note that this protective cover cannot be removed.
  • [Steady Temperature-control]: After the temperature is set, this fish heater will automatically turn on and off to maintain the water temperature at the set temperature.
  • [Easy to use and adjustable]Adjustable fish tank heater from 68°F to 93°F , The best temperature range for most fishes is 76°F-80°F.
  • [Attention]:Because of the protective cover, the volume will be larger than the conventional glass heater, but the protective cover is tri-prism shape, which can save some space.
  • Manufacture: Haisen
  • Editor's Impressions Of The HITOP
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

HITOP Final Thoughts

"No worries, though."

The bonus digital thermometer it came with has been super helpful, and is accurate. You program it for temperature you want your tank to be. Well I bought a second one took me only one trying to get the right temperature. Sometimes you may have to tinker around with the dial. The heater protector was very heavy plastic and slim lined which is great. So if you set it to 78 degrees, the heater will not kick on until it reads 76. I left seller feedback yesterday but have yet to hear from the seller.

Overall Score
4.3


(394 Points)

10. 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)

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