Editor's Choice - Our Favorite boxtech Aquarium Heaters

1. boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2...

User Ratings: 69 8

boxtech First Impressions

"Best addition to my tank."

There is no protection from it banging on the glass tank. Sometimes you may have to tinker around with the dial. I got this heater for my 55 gallon aquarium. Awesome chiller, perfect for Hydroponics. The heater is easy; turn the dial to set temp and plug in. 210 gallon ones and one 90 gallon bow front tank. I got the 200W variant for my 54 gallon corner tank that's housing goldfish.

  • boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2 Suction Cups Suit Marine Saltwater and Freshwater
  • Fish Tank Heater: 300W aquarium heaters suit for 30 - 80 Gallon fish tank. Voltage:110V, power cord is 5.57ft, Max deep water immersion 20 inch/1.7 FT
  • Correct installation: Stick the heater vertical onto the tank side near the water intake or on the way of water flow.(This way the heater can quickly sense the water temperature and make adjustments automatically), Keep the aquarium heater fully submerged in water
  • Fully Automatic Control: Design with External Temperature Controller, Temperature Range is 68 ºF-90 ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating
  • Quartz Tube Safety Protection: Made of heat-resistant milky quartz Glass and UL-Approved Power Cord, Controller IPX4, Heater IPX8 that make it pretty shatter-proof and Explosion-proof and prevents electricity leakage, service life can be 3 years or more
  • Notice Please: Before you clean the aquarium or change water, pls must cut off the heater power, after 10 minute cooling then take out the heater and regularly clean the scale on the heater
  • Temperature Control: Design with External Temperature Controller, Temperature Range is 68ºF-90ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating.
  • Voltage:110 V Frequency: 50HZ
  • Led Indicator Light:When it working, the indicator light is red.
  • Manufacture: BOXTECH
  • Product Dimensions: 13.39 x 1.97 x 3.54 inches; 11.99 Ounces
  • Editor's Impressions Of The boxtech
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

boxtech Final Thoughts

"There was only~0."

You don't have to worry about wide temperature swings with this unit. I was amazed how quickly I got to my temperature I need it 78 degrees. This has been in my fish tank for a few months now and it's been absolutely perfect! You don't have to worry about wide temperature swings with this unit. It is a bonus that the heater is titanium. I have it set to 81F to get a 77F water temp. My fish likes to get close to it and he has never been hurt by it.

Overall Score
4.3


(523 Points)

2. 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)

3. 300W Aquarium Heater Fish Tank Submersible Heater Turtle Heat Rod with Temperature Display External ...

User Ratings: 57 18

JackSuper First Impressions

"Yes, you read that right."

Keeps the water consistent and it's easy to adjust! I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees. I like to keep it at 72 and from my thermometer it is reading at exactly 72. There is no protection from it banging on the glass tank. You don't have to worry about wide temperature swings with this unit. We received the chiller promptly and put it into use. This is only day one though, so I shall keep an eye one it.

  • 300W Aquarium Heater Fish Tank Submersible Heater Turtle Heat Rod with Temperature Display External Temperature Controller for Betta Frogs Newts Turtles
  • ★【Application】Applicable for freshwater and marine aquariums, Betta, Frogs, Newts, Turtles, aquaculture, glass containers, and hydroponic systems
  • ★【Intelligent temperature control】:Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically shut off(LED Off), when it is lower than the target temperature, heater will automatically start heating(LED on).
  • ★【Warm tips】This heater is fully submersible, constructed of shatter-resistant quartz glass and features an automatic safety shut-off to avoid overheating.
  • ★300W submersible heating rods are suitable for up to 99 gallons fish tanks, Cable:80cm/31.5 inch Temperature range:68°F-93°F(20°C-34°C),suitable for salt water and freshwater fish tanks.
  • 【EASY INSTALLATION】Make sure thermometer is completely submerged underwater for minutes, temp controller is adjustable from 59 to 95°F , just press set button to the set temperature, it begins to work.Please place the heating rod in the water outlet and completely immerse it in the water. 【Easy to use】you can adjust the temperature knob to set the temperature what you want easily,2mm thickened quartz glass,can be used in fresh water and salt water aquariums
  • Manufacture: JackSupermall
  • Editor's Impressions Of The JackSuper
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

JackSuper Final Thoughts

"Excellent build quality."

I appreciate the exterior temp readout and control module. I left seller feedback yesterday but have yet to hear from the seller. This product came in the nick of time! Once I opened the box i noticed the quality of the construction. I have a 10gallon tank that was at 72 degrees. I will be ordering more of these in the future. Once I opened the box i noticed the quality of the construction.

Overall Score
3.9


(144 Points)

4. Fluval M Submersible Heater

User Ratings: 80 3

Fluval A782 First Impressions

"The seller was wonderful."

I think it works well to not stand out like other heaters. If the water runs low or air gets in the heater shuts off. I have only had minor problems with the suction cups. They promptly fixed the issue without any delays or drama. This has the best controller that I have found on the market. I will be ordering more of these in the future. This is a powerful heater that holds temperature very well.

  • Fluval M Submersible Heater
  • Aquarium heater that blends into the aquarium environment with built-in reflective technology that mirrors the surrounding colors
  • Computer-calibrated thermostat and easy-to-adjust temperature control dial
  • Shock resistant Borosilicate glass and high density ceramic heat sick
  • Easy to install with slim profile tube for easy placement
  • 100-watt heater suitable for freshwater and saltwater aquariums up to 30 gallons with a 3-year warranty
  • Quality heater made in Europe using superior components and construction
  • Sleek and compact
  • Ideal for 100 L (30 US gal) aquariums
  • Manufacture: Fluval
  • Product Dimensions: 1.8 x 4.8 x 14.8 inches; 8.82 Ounces
  • Editor's Impressions Of The Fluval A782
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Fluval A782 Final Thoughts

"5 or even."

I will be ordering more of these in the future. I will definitely be buying another one for my other tanks at bigger one. It does blend well in some setups and may look bulky in others. We would consider a replacement and then we would return the defective unit. Thanks for the great customer service! Pressing and holding the button for 5 seconds changes it from F to C readouts. My marina heater takes a few hours.

Overall Score
4.7


(1578 Points)

5. 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)

6. Poafamx 16gal Aquarium Water Chiller 60L Fish Tank Cooler Heater System Quiet for Home Fish Shrimp B...

User Ratings: 51 18

Poafamx First Impressions

"No copper lines!"

Pressing and holding the button for 5 seconds changes it from F to C readouts. This heater works, but the dial it isn't very accurate. Just be careful and keep an eye on your temp settings when you have kids over! I love the heater otherwise, but I'm afraid some water has gotten inside the heater. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. Also were nice along the whole process. I'm in the process of setting up for tanks.

  • Poafamx 16gal Aquarium Water Chiller 60L Fish Tank Cooler Heater System Quiet for Home Fish Shrimp Breeding Aquaculture Hydroponics 110V with Pump (60L Chiller&Heater)
  • [ADJUSTABLE CONSTANT WATER COOLER HEATER] The aquarium cooler has real-time monitoring of water temperature, keep the temperature in certain range
  • [LOW NOISE] Silent fan, running sound no higher than 35-45 dB
  • [ENVIRONMENTAL PROTECTION] Using electronic refrigeration technology, environmental protection and no emissions
  • [HIGH-EFFICIENCY ENERGY-SAVING COMPRESSOR] Built-in high-efficiency energy-saving compressor, circulation refrigeration technology, more accurate temperature control
  • [WIDE RANGE OF APPLICATION] Widely used in homes, hotels, aquariums, fish tanks, fish farms, and other fields. Also suitable for aquatic creature, aquaculture, fish, crystal shrimp, coral and jellyfish
  • HD digital display
  • Easy temperature setting/adjustment
  • Temperature monitoring
  • Manufacture: Poafamx
  • Item Weight: 9.33 pounds
  • Editor's Impressions Of The Poafamx
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Poafamx Final Thoughts

"Highly recommended."

I am very happy with this purchase. Easy to read the temp and know exactly how warm the water is. It comes with a hanging kit and can be secured on the edge of the tank. The temperature has been holding all day, even in a colder room. I bought a similar one at the pet store and it barely worked. This heater is NOT fully submersible. And I get to keep the first one I bought!

Overall Score
3.8


(18 Points)

7. FREESEA Aquarium Fish Tank Heater: 50 | 100 | 300 Watt Adjustable Thermostat with 2 Suction Cups & T...

User Ratings: 70 10

FREESEA First Impressions

"Quality was amazing."

Thanks for the great customer service! This little heater is perfect; this is our third purchase of the same heater. Bought it as a chiller for the k40 CO2 laser. Will update my review if any changes occur. The line is there due to regulations in certain countries. This product came in the nick of time! It took me only two tries to get it to the correct temperature.

  • FREESEA Aquarium Fish Tank Heater: 50 | 100 | 300 Watt Adjustable Thermostat with 2 Suction Cups & Thermometer for Betta Tank | Saltwater Tank | Aquarium | Coral Tank
  • ★【300Watt Heater】: This Aquarium heater is suitable for 40 to 60 gallons aquariums, Length - 12.6 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.
  • ★【Temperature Range】: 64°F~93°F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.
  • ★【Intelligent Temperature Control】: Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Furthermore, Automatic safety shut-off feature, and overheating protection.
  • ★【High Quality】: This upgraded aquarium heater now updated for 2mm durable Quartz Glass, which is pretty shatter-proof and blast-proof and prevents electricity leakage. And the stronger protective container updated for Anti-melting anti punching double sealed material, it is scald-preventing for your pets and your safety, suitable both for fresh and salt water.
  • ★【Satisfaction Guaranteed】: Gain the confidence to go hard with us! Our Aquarium Heater 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, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service.
  • Manufacture: FREESEA
  • Product Dimensions: 13.39 x 1.18 x 0.79 inches; 10.58 Ounces
  • Editor's Impressions Of The FREESEA
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

FREESEA Final Thoughts

"Well written but vague."

The heater protector was very heavy plastic and slim lined which is great. It would stick out of my 30 g wide tank if I were to put it vertical. It took me only two tries to get it to the correct temperature. This heater works, but the dial it isn't very accurate. The bonus digital thermometer it came with has been super helpful, and is accurate. Product was received fast, works excellent! It is safe and dependable and comes with a one year warranty.

Overall Score
4.3


(44 Points)

8. HITOP 500W Aquarium Heater with Temperature Display, Submersible Fish Tank Heater with Adjustable Bu...

User Ratings: 57 15

HITOP First Impressions

"Until the next time."

I wouldn't buy any other heater, unless one of these stops working. Easy enough to let it run all the time. I'm not a big fan of the big glass tubes. They promptly fixed the issue without any delays or drama. It took me a few days slowly turning the dial up to finally get it where I wanted. I noticed my old hygger heater beginning to fail and my wife ordered this one. Sometimes it gets outside of it's ability to cool but only within a few degrees.

  • HITOP 500W Aquarium Heater with Temperature Display, Submersible Fish Tank Heater with Adjustable Button for 100-200 Gallon
  • [Top grade Material for Heating Elements]: 500W, 10.6*2.8*1.2 inches, Ni-cr Alloy heating element, eliminated the disadvantages of easy-broken of quartz glass, characterized by high resistivity, thermal fatigue resistant, corrosion resistance and high temperature shape stability, top grade heating element for heaters.
  • [Real-time Water Temperature Monitor]: Dynamically display real-time temperature, convenient to monitor the water temperature. Adopting an 100K 10% internal high-efficiency temperature sensor, more accurate and rapid to detect temperature fluctuations. More reliable and longer service life.
  • [External Temperature Adjuster]: External circulating temperature control device, 60℉~93 / 16℃~34℃, more convenient and safer.
  • [Automatically Cut-off when Leave out of Water]: Equipped with Auto-off device,the heater will power off automatically when leaving water,it’s much safer to protect people and fish.
  • [More Accurate Temperature Control]: Heating part is separated from electric parts, this can protect and lengthen the life of the electric elements, also can make the temperature controlling more accurate, error ±1℉/0.5℃.
  • Manufacture: Haisen
  • Editor's Impressions Of The HITOP
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

HITOP Final Thoughts

"The seller was wonderful."

The heater is super thin and the reflective surface is interesting. The design is sleek and modern looking. Ick for instance detaches from fish at 86 degrees and dies at 89. This is a powerful heater that holds temperature very well. We wish the controls were available in Farenheit also to make things a little easier. Just be careful and keep an eye on your temp settings when you have kids over! So far I like it setup was super easy.

Overall Score
3.9


(127 Points)

9. VIVOSUN 50W-500W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Tempera...

User Ratings: 73 8

VIVOSUN First Impressions

"Just bought a second one!"

The heater is being used in a 40 gallon breeder. We would consider a replacement and then we would return the defective unit. I would definitely recommend this product. The temperatures are pretty accurate. I got a hold of Amazon, who put me in touch with the seller. 210 gallon ones and one 90 gallon bow front tank. After several weeks of running the heater.

  • VIVOSUN 50W-500W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller
  • PRECISE TEMPERATURE CONTROL: An intelligent IC chip controls the heater temperature, making the temperature difference within ±1℃/±2ºF; Provide the best living environment for your aquatic creatures
  • SAFETY GUARANTEE: Made with IP68, the highest waterproof level; and a titanium tube material that features explosion-proof and anti-corrosion engineering, which makes this submersible heater more resistant to damage while heating better than traditional glass heaters; Built with overheat and water shortage protection
  • EXTERNAL TEMPERATURE CONTROLLER: The touch-button controller adjusts the temperature without getting your hands wet. It’s easy to control the temp from 68℉/20°C to 94℉/34°C; Check the size chart to find your desired fish tank heater
  • EASY TO SETUP: 300W submersible heater is suitable for 50 to 60 gallons aquariums; Vertical or horizontal installation and ensure the device is fully submerged underwater
  • WIDE COMPATIBILITY: The fish tank aquarium heater has CE, FCC and ROHS certification and the plug has a UL certification; Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • Press set button to start the temperature setting. The LED display will start to flash, continue pressing set button, the number in LED screen will circulate from 68 to 94 °F
  • Manufacture: VIVOSUN
  • Editor's Impressions Of The VIVOSUN
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

VIVOSUN Final Thoughts

"I bought the 7."

It is a bonus that the heater is titanium. I use a 50 for a 5 gal and a 10 gal tank. Sometimes it gets outside of it's ability to cool but only within a few degrees. I contacted the manufacturer and they sent me a new unit in less than a week! But my guys don't read them and don't listen! It took about an hour to reach 80f, which is fairly quick. I used to try those other cheap heaters sold on amazon.

Overall Score
4.4


(1173 Points)

10. hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater with Digital Thermostat, IC...

User Ratings: 77 5

hygger First Impressions

"6 gallon tank."

I went ahead and went with the the larger 300W for my 45 gallon. The suction cups are large, high quality and seem to stick great. If the water runs low or air gets in the heater shuts off. Am a totally sold customer and would recommend them to anybody! I got the 200W variant for my 54 gallon corner tank that's housing goldfish. I have it set to 81F to get a 77F water temp. I left seller feedback yesterday but have yet to hear from the seller.

  • hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater with Digital Thermostat, IC Temp Controller 50-500 Watt
  • [FULLY SUBMERSIBLE]: Our Betta Tank Heater is fully submersible in water HORIZONTALLY with 2 suction cups can be easily mounted on tank. Place it near a strong water flow so that the whole aquarium at the same temperature. Comes with a separate controller where you can easily adjust from low to high without taking out the heater from the aquarium or fish tank.
  • [SHATTERPROOF & ANTICORROSION]: Our Titanium Heater is completely shatterproof as there is NO glass in the construction– it’s made from heavy duty, durable Titanium. As it has a great feature of being anticorrosion, it is perfect for freshwater, saltwater aquariums and reef tanks.
  • [PINPOINT TEMPERATURE]: Build-in external electronic theromstat, it has DUAL LCD display that clearly shows you the temperature setting in either Celsius or Fahrenheit. Up is aquarium temperature and down is set temperature. Heater will stop heating when temperature rise exactly to your desired temp. Heating temperature range 32 to 104°F. Control accuracy is +/- 0.5° C.
  • [AUTOMATED SHUT OFF SYSTEM]: Temperature can be controlled and set to your desired degree of heat. It automatically sets off when it reached the designated temperature of your setting. Voltage: 110V
  • [TANK CAPACITY]: 200-watt aquarium heater, 10.7 inches in length. Recommended for aquariums with 20 to 45 gallons of water capacity.
  • IP68 100% Waterproof, Fully Submersible
  • Titanium Tube, Shatterproof construction, Corrosion Resistant
  • Accurate temperature control from 32°F to 104°F
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"6 gallon tank."

I had a thermometer on opposite side of tank and the heater was dead on true. The bonus digital thermometer it came with has been super helpful, and is accurate. Sometimes it gets outside of it's ability to cool but only within a few degrees. They shipped us the upgraded version that also heats! I love the heater otherwise, but I'm afraid some water has gotten inside the heater. For Discus you need warm and accurate heater and this seems to do the trick. Those turned out to be a hit and miss.

Overall Score
4.5


(514 Points)

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