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 [star rating='4.9']
• Quality [star rating='4.7']
• Value For Money [star rating='4.6']
• Affordability [star rating='3.4']

Here Are Some Other Related Aquarium Heaters

2. LUYS PTC Aquarium Heater (50W / 100W / 200W / 300W / 500W), with External Temperature Controller and...

User Ratings: 76 7

LUYS First Impressions

"Very pleased so far."

So when I first received it it didn't work and I was very disappointed. I was amazed how quickly I got to my temperature I need it 78 degrees. The suction cups are large, high quality and seem to stick great. I wouldn't buy any other heater, unless one of these stops working. It took about an hour to reach 80f, which is fairly quick. I got this heater for my 55 gallon aquarium. I have 3 of the Fluval heaters, in various sizes.

• LUYS PTC Aquarium Heater (50W / 100W / 200W / 300W / 500W), with External Temperature Controller and LED Temperature Display for Fish Tank
• 【Precise Temperature Control】LUYS aquarium heaters use unique temperature-control technology which can easily control the aquarium temperature to a preset temperature. The easy-to-read red LED temperature display shows the real-time water temperature on the large screen. When the fish tank heater starts to heat, the heating indicator lights turns red, and once it reaches the set temperature, it will turn blue. The temperature accuracy is +/-1 ° F.
• 【Fast Heating Speed, 50%+ Energy Saving】The main material of the heating rod is PTC. Under the same conditions, the heating speed is 2-3 times that of the ordinary heating rod, and it can save 50% of electricity for you.At the same time, the heating rod has a temperature memory function, which automatically saves the set temperature after the power is turned off, and automatically heats to the set temperature after the mains power returns.
• 【Safety Design Provides Double Protection for Your Aquarium】This heater has overheating protection function and it can be auto shut off when out of water. When overheating (more than 93 Fahrenheit), it will automatically shut down, and it will automatically reset when it cools to the starting temperature (usually two degrees lower than the set temperature). When the water level is lower than the water level probe, it will stop heating, automatically cut off the power, and display E1 fault.
• 【Quartz Tube Protects Heating Materials from Corrosion and Electric Leakage】The aquarium heater is made of high-quality quartz explosion-proof glass and high thermal conductivity silicon carbide, and is double-sealed with a black protective cover to prevent explosion and corrosion, and protect fish and other livestock are protected from burns
• 【External Temperature Controller, Make the Temperature Setting Easier】The external controller is easy to set the temperature without getting your hands wet. The temperature can be adjusted precisely from 68 to 93 ° F (20 ° C to 33 ° C), and the water temperature probe is located at the bottom to detect the temperature more accurately. Just press the setting button to your required temperature and the blue light flashes for 3 seconds to start working
• Manufacture: LUYS
• Product Dimensions: 4.72 x 3.94 x 2.36 inches; 11.43 Ounces

• Editor's Impressions Of The LUYS
• Heat Quality [star rating='3.6']
• Quality [star rating='5']
• Value For Money [star rating='3.7']
• Affordability [star rating='4.8']

3. Inkbird Temperature Controller ITC308 Reptile Freezer Thermostat Aquarium Heater Cooler 110V 1100W P...

User Ratings: 71 9

Inkbird 8541956716 First Impressions

"16-26 gallons 75 watt 10."

Keeps the temperature within 1 degree of what you set it to at all times. It's pretty noticeable, but I don't really care. I bought a similar one at the pet store and it barely worked. This is a great heater that is very easy to set up and program. And kids love pushing all sorts of buttons. 210 gallon ones and one 90 gallon bow front tank. Checked the accuracy of the heater with an infrared thermometer.

• Inkbird Temperature Controller ITC308 Reptile Freezer Thermostat Aquarium Heater Cooler 110V 1100W Pre Wired Dual Stage Digital Outlet Probe Heating Cooling Plug Homebrewing Refrigerator Greenhouse
• Pre-wired controller ITC-308 is served as the successor to the STC-1000. If you don't want to build your own STC-1000, the Inkbird ITC-308 is the solution!
• Setup is easy, straightforward and quick.
• The cord on the remote temperature sensor is a bit over 6 feet long.
• Accurate displays, thermostatic function and temperature calibration.
• It's an all in one, simple solution providing control of cooling and heating.
• Item Weight: 14.4 ounces

• Editor's Impressions Of The Inkbird 8541956716
• Heat Quality [star rating='3.5']
• Quality [star rating='5']
• Value For Money [star rating='4.3']
• Affordability [star rating='4.6']

4. 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 [star rating='4.6']
• Quality [star rating='4.2']
• Value For Money [star rating='4.1']
• Affordability [star rating='4.7']

5. Aquarium Heater 50W/100W/200W/300W Fish Tank Water Heater Submersible Adjustable Temperature Thermos...

User Ratings: 67 10

Supyouleg First Impressions

"Looks as advertised."

I will be ordering more of these in the future. After several weeks of running the heater. Those turned out to be a hit and miss. Easy enough to let it run all the time. This heater works, but the dial it isn't very accurate. Thanks for the great customer service! I was amazed how quickly I got to my temperature I need it 78 degrees.

• Aquarium Heater 50W/100W/200W/300W Fish Tank Water Heater Submersible Adjustable Temperature Thermostat for 15 30 55 75 Gallon Freshwater Saltwater Betta Tanks with 2 Suction Cups
• ✅Upgraded Heater - Our aquarium heater is made of high quality real quartz glass material, will not explode during working, can totally keep your fish safe and health, suit for freshwater and saltwater tank.
• ✅Circulating Working Mode - Our submersible aquarium heater has a super good feature is after setting your temperature, it will work about 5-10 minutes, then stop 2 minutes, then continue to working, repeat this working mode until get your temperature. This working mode avoid overheating your fish.
• ✅Adjustable Temperature – The temperature of the water heater can be adjusted, rotate the orange dial can easily set the accurate temperature which you want. Temperature range is 20-34 c(68-93 F).
• ✅Power – The power of the fish thank heater is 50W, which is suit for 5 to 10 gallons fish tank, low energy consumption. Voltage is 110V-120V. Cable length is 55 inch.
• ✅Indicator Light - This small aquarium heater thermostat has a indicator light to let you know when the heater is on. It will be red when heating and off when the proper temperature has been reached. It will stop work automatic when water reach the temperature which you set, and begin to work when water temperature bellow setting temperature.
• 4: Must be full submersible into water, don’t leave half heater out of water.
• Manufacture: Supyouleg

• Editor's Impressions Of The Supyouleg
• Heat Quality [star rating='4.6']
• Quality [star rating='3.2']
• Value For Money [star rating='5']
• Affordability [star rating='4.9']

6. PGFUNNY 25W Aquarium Heater, Fish Tank Heater for Betta Smart Thermostat, Slim Design Fit 3 to 5 Gal...

User Ratings: 69 7

PGFUNNY First Impressions

"Just bought a second one!"

This heater warmed it right up and now my Betta and guppies are more active. My heater is fully submerged underwater and works perfectly fine. Temperature is slightly off by running a little warmer. There is no protection from it banging on the glass tank. Well worth the money the first one I bought still works great. The temperature lights up so it's very easy to read. I have a 10gallon tank that was at 72 degrees.

• PGFUNNY 25W Aquarium Heater, Fish Tank Heater for Betta Smart Thermostat, Slim Design Fit 3 to 5 Gallon Tank, with Thermometer Strips
• 【Fully Automatic Temperature Control Chip】: Submersible Aquarium heater works in intermittent operation mode,temperature regulate between on 77℉ - 82℉, Unlike the traditional manually adjusted fish tank heaters, no need to set. and will automatically turn on/off to achieve the setting temperature constantly and stably, Energy-efficient.
• 【Suitable for 3-5 Gallon Tank】: Fish Tank Heater 25 watt powerful and slim design fit for small fish tank. The Way of Measure Watt Heater for Your Fish Tank Needing: Watt=(Tank's Length*Wide*Water Height) /1000*2.
• 【Advanced Materials】: sturdy engineering plastic. It has anti-explosion, anti-scalding function, high temperature resistance and high safety. Suitable for aquarium pets such as turtles and fry. Length - 5.35 inch, Width - 0.9inch, Thickness - 0.63inch.
• 【Come with Thermometer Strips】: By using this Thermometer Strips, you will be able to monitor. An easy to identify blue color shows the current temperature of your aquarium water. Temperature Strips is for reference only. Note: The temperature strips should stick on the outside of fish box and level with the heater. due to the different materials of glass , the shown temperature may be delayed.
• 【Quality Assurance】: This product fish tank heater have certificated by CE, ROHS, FCC certifications. Anti-explosion, Waterproof, Scald-preventing, safe operation for pet betta fish.Working power 25w, frequency: 50/60Hz, voltage: 110-120V, waterproof rating IP68.
• Manufacture: ZENGH

• Editor's Impressions Of The PGFUNNY
• Heat Quality [star rating='4.1']
• Quality [star rating='4.7']
• Value For Money [star rating='3.5']
• Affordability [star rating='3.9']

7. 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']

8. Inkbird 1200 Watts Digital Temperature Controller Aquarium Thermostat for Aquarium Heater, with Wate...

User Ratings: 73 6

Inkbird First Impressions

"I like it."

Also were nice along the whole process. Those turned out to be a hit and miss. This is only day one though, so I shall keep an eye one it. Keeps the water consistent and it's easy to adjust! I like how the heater is constructed. I emailed the email it says to and told them. I love the heater otherwise, but I'm afraid some water has gotten inside the heater.

• Inkbird 1200 Watts Digital Temperature Controller Aquarium Thermostat for Aquarium Heater, with Waterproof Sensor
• Wifi & Free APP : Pair the aquarium temperature controller with your phone via 2.4GHz Wi-Fi, the device will alarm if there are exceptions. And all exceptions will be updated to the APP, the app will push notifications to remind you.(APP: ☞InkbirdSmart)
• Dual Protection : The wifi temperature controller is equipped with 2 relays(current relay) to ensure that the power can be turned off under any abnormal circumstances, will protect your fish from being hurt by overheated water
• Continous Heating Alarm The heating time can be set according to your needs from 1 hour to 72 hours. The controller will alarm once the water can not be heated to the setting temperature within the specified time. The temperature setting range is 20.0℃~35.0℃/68.0℉~95.0℉ and the measure temperature range is -40℃~100℃/-40℉~212℉.
• Easy to use : Plug and Play. The 10A 1200w programmable and prewired aquarium thermostat is compatible with most kinds of heaters, no need to assemble the product yourself, just plug and play.
• Dual probe for safety :The aquarium heater controller will alarm once the temperature difference between 2 probes is more than 5℉(3℃), and the app will push a notification at the same time.To protect your fish in a more safet environment
• Manufacture: Inkbird

• Editor's Impressions Of The Inkbird
• Heat Quality [star rating='3.5']
• Quality [star rating='3.8']
• Value For Money [star rating='4.7']
• Affordability [star rating='4.2']

9. ZEETOON 25W Aquarium Heater, Automatic Thermostat Betta Fish Tank Heaters, Tortoise Small Water Warm...

User Ratings: 69 12

ZEETOON First Impressions

"Very quick shipping."

--The heater itself is a bit shorter if your tank is a short one. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. If the water runs low or air gets in the heater shuts off. But my guys don't read them and don't listen! I like the fact that it comes with a digital thermometer. Would be great to be able to tune that to. The red light means it's off, blue light means the temperature is constant.

• ZEETOON 25W Aquarium Heater, Automatic Thermostat Betta Fish Tank Heaters, Tortoise Small Water Warmer for 2-5 Gallon Container with 1 Stick-on Thermometer Strip
• 73ºF-82ºF Auto Thermostatic: ZEETOON Fish Tank Heater Betta Fish's Favorite Gifts, Suitable for all kinds of aquarium pets, Betta, tropical fish, goldfish, ornamental fish and turtles, can work in both brine and fresh water. Maintaining pleasant water temperatures in all seasons for your little fishes and turtles and will be no longer fear the winter! 1 Stick-on Thermometer Strip, Eliminate your worry of not confirming the heating temperature
• Mini Sized More Fit: Specific perfect for mini aquarium under 5 gal/20L. Fully submersible compact betta fish heater for all shapes and materials fish tanks 1-2-3-4-5 gallon, whether it is glass or plastic, all can be used. ZEETOON Mini Heater provide a constant warm for your pet fish to stay healthy, suitable both for fresh and salt water. intelligent temperature regulate, very easy to use.
• Automatic For Energy-saving: Adopted intelligent circuit board, with a precise sensing probe and thermostat heating system. Unlike other conventional heaters, need you to manually adjust the temperature. Our Smart Aquarium Heater just plug the power cable then it will work. It works will automatically turn on/off to achieve the setting temperature constantly and stably 73ºF-82ºF(25℃-28℃), Energy-saving life, you will be at your fingertips!
• Smart For Your Safety : ZEETOON Mini Heater different from a manually adjusted heater. Our heater automatic temperature regulate on 73ºF-82ºF(25℃-28℃) , no need to set. Prevent electric shock and burns. Keep you and your family safe. Position it near a strong water flow for whole aquarium are in the same temperature. The outlet of filter is ideal. When there is a heater in the fish thak, do not put your hand in to the water
• High Quality: Made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it.
• Manufacture: ZEETOON

• Editor's Impressions Of The ZEETOON
• Heat Quality [star rating='3.4']
• Quality [star rating='4']
• Value For Money [star rating='3.7']
• Affordability [star rating='3.3']

10. Fluval Marina Submersible Heater for Aquarium

User Ratings: 68 7

Marina 11233 First Impressions

"The accuracy is perfect."

This product came in the nick of time! I got this heater for my 55 gallon aquarium. They promptly fixed the issue without any delays or drama. When i installed them, i let them sit in the tanks without power for 6-24 hours. I adjusted the set temperature a little lower to be more in the range I wanted. Those turned out to be a hit and miss. I think it works well to not stand out like other heaters.

• Fluval Marina Submersible Heater for Aquarium
• Submersible heater for fresh or saltwater aquariums or reservoirs
• Easy to read temperature settings
• Impact-resistant glass design; Water proof sealing
• Includes bracket with suction cups for easy, secure installation
• Length: 8.5 Inch
• Manufacture: Marina
• Product Dimensions: 1.5 x 1.5 x 8.5 inches; 9.6 Ounces

• Editor's Impressions Of The Marina 11233
• Heat Quality [star rating='4.8']
• Quality [star rating='4.7']
• Value For Money [star rating='4.5']
• Affordability [star rating='5']