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 [star rating='3.7']
• Quality [star rating='5']
• Value For Money [star rating='4']
• Affordability [star rating='4']

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 [star rating='5']
• Quality [star rating='4.4']
• Value For Money [star rating='4.1']
• Affordability [star rating='3.7']

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 [star rating='4.3']
• Quality [star rating='4']
• Value For Money [star rating='5']
• Affordability [star rating='4.1']

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 [star rating='3.8']
• Quality [star rating='3.3']
• Value For Money [star rating='4.1']
• Affordability [star rating='4.3']

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 [star rating='4.8']
• Quality [star rating='4.3']
• Value For Money [star rating='4.2']
• Affordability [star rating='4.4']

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 [star rating='5']
• Quality [star rating='4']
• Value For Money [star rating='5']
• Affordability [star rating='4.5']

Here Are Some Other Related Aquarium Heaters

7. 300 Watt Aquarium Heater Fast Heating Titanium Tube Saltwater Fully Submersible Fish Tank Heaters wi...

Periha HF-300W First Impressions

"Highly recommended."

Per my thermometers, they are all staying constant. It's pretty noticeable, but I don't really care. Just be careful and keep an eye on your temp settings when you have kids over! This product came in the nick of time! They shipped us the upgraded version that also heats! Was very impressed with the quality of this heater. There is no protection from it banging on the glass tank.

• 300 Watt Aquarium Heater Fast Heating Titanium Tube Saltwater Fully Submersible Fish Tank Heaters with LED Digital Temperature External Controller Freshwater Safety Pinpoint Thermostat 53-80 Gallon
• ✅ STRONG ANTI-CORROSION: The tank heater is made of high-quality, durable titanium alloy, no glass, do not worry, it will be shattered. And its strong anti-corrosion features make it perfect for freshwater, saltwater aquariums, and reef tanks.
• ✅ SAFE EXTERNAL CONTROL: With external thermostat, no need to take out the heater from the aquarium or tank, easily adjust the temperature you want without getting your hands wet, prevent electric shock & burns, keep you and your family safe.
• ✅ ACCURATE TEMP CONTROL: LCD display can clearly show the temperature setting in either Celsius or Fahrenheit, just press and hold the “SET” button for 3-4s. Heating temperature ranges from 68 to 93°F(14-34℃). Control accuracy is +/- 0.5° C, providing a constant warm aquarium for your pet fish to stay healthy.
• ✅ EASY TO SETUP & USE: This heater is fully submersible in water HORIZONTALLY with 2 strong suction cups, not easy to move and drop off, preventing your pets from harm and burning. Place it near a strong water flow to keep the whole tank at the same temperature.
• ✅ AQUARIUM CAPACITY: 300W stable output power, the heater fits for aquariums with 53-80gallons(300 Liters) of water capacity. We offer a 1-year limited warranty, if you have any questions, pls contact us first, we will respond within 24 hours to solve the problem.
• Manufacture: Periha
• Product Dimensions: 11.23 x 0.75 x 0.2 inches; 1.15 Pounds

• Editor's Impressions Of The Periha HF-300W
• Heat Quality [star rating='5']
• Quality [star rating='5']
• Value For Money [star rating='5']
• Affordability [star rating='5']

8. Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube

User Ratings: 61 12

Finnex HMA-500 First Impressions

"Yes, you read that right."

I was worried about the quality but I am thoroughly impressed with this heater! I will definitely be buying another one for my other tanks at bigger one. We received the chiller promptly and put it into use. 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. I waited a little bit to write the review so it could be accurate. The temperature lights up so it's very easy to read.

• Finnex Hang-On Electronic Controller Aquarium Heater, Titanium Tube
• Titanium Tube
• Sleek analog controller
• HMA 500: 100-120 Gallons
• Manufacture: JSK Merchandise Inc.
• Product Dimensions: 14.48 x 1 x 1 inches; 14.4 Ounces

• Editor's Impressions Of The Finnex HMA-500
• Heat Quality [star rating='3.9']
• Quality [star rating='4.7']
• Value For Money [star rating='4.3']
• Affordability [star rating='3.9']

9. hygger Fast Heating Titanium Aquarium Heater with LED Digital Temp Controller 500W 800W Submersible ...

User Ratings: 75 8

hygger First Impressions

"Great concept."

The temperature lights up so it's very easy to read. Keeps the temperature within 1 degree of what you set it to at all times. I'm in the process of setting up for tanks. Was very impressed with the quality of this heater. I have a 10gallon tank that was at 72 degrees. I will be ordering more of these in the future. It took me a few days slowly turning the dial up to finally get it where I wanted.

• hygger Fast Heating Titanium Aquarium Heater with LED Digital Temp Controller 500W 800W Submersible Fish Heater for 60-180 Gallon Freshwater Marine Tank
• 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 titanium and double sealed by black protective guard, this fish tank heater is resistant to explosion and 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. Temp accuracy is +/- 1°F.
• Easy to set temperature without getting hands wet. Build in hand button, Keep pushing the button. It will cycle through all the set temperatures. Temperature can be precisely adjusted from 70 to 94°F
• 800W aquarium heater, voltage 110-120V, suitable for tank capactiy 120-180 gallon freshwater and marine water aquariums
• Do not bury under gravel
• Always keep heater rod fully submerged
• IP68 100% Waterproof, Fully Submersible
• Manufacture: hygger

• Editor's Impressions Of The hygger
• Heat Quality [star rating='3.6']
• Quality [star rating='4']
• Value For Money [star rating='5']
• Affordability [star rating='4.2']

10. Fluval A767 Tronic Heater

User Ratings: 63 8

Fluval A767 First Impressions

"Very easy and accurate."

The temperature lights up so it's very easy to read. No biggie, but annoying nonetheless. Awesome chiller, perfect for Hydroponics. Awesome chiller, perfect for Hydroponics. The heater is easy; turn the dial to set temp and plug in. If the water runs low or air gets in the heater shuts off. I emailed the email it says to and told them.

• Fluval A767 Tronic Heater
• Fully submersible, easy to use electronic aquarium heater
• Patented thermal sensor continuously samples water temperatures
• Fast heat technology quickly achieves optimum temperature
• Advanced circuitry for safe and reliable heating
• 100-watt electronic heater, 13 inches long
• Manufacture: Rolf C. Hagen (USA) Corp.
• Product Dimensions: 12 x 4 x 7 inches; 11.2 Ounces

• Editor's Impressions Of The Fluval A767
• Heat Quality [star rating='4.5']
• Quality [star rating='4.2']
• Value For Money [star rating='4.7']
• Affordability [star rating='5']