Editor's Choice - Our Favorite Penn-Plax Aquarium Heaters

1. Penn-Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 75 Watt Heats Up to 15 Gallo...

User Ratings: 64 10

Penn-Plax CH850 First Impressions

"Quality was amazing."

I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. Or better yet, conceal it to the back corner. I used to try those other cheap heaters sold on amazon. I went ahead and went with the the larger 300W for my 45 gallon. The line is there due to regulations in certain countries. Sometimes it gets outside of it's ability to cool but only within a few degrees. Sometimes it gets outside of it's ability to cool but only within a few degrees.

• Penn-Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 75 Watt Heats Up to 15 Gallon Tank
• Aquarium heater sets and maintains the temperature in your tank within 1 degree accuracy.
• Features both Fahrenheit and Celsius temperature with easy to read gage.
• Heater is fully submersible and can be placed horizontally or vertically in your tank.
• Has a preset temperature to 76 degrees Fahrenheit but is also easily programmed.
• Heater is safe to use on smaller fish tanks and aquariums up to 10 gallons in size.
• Manufacture: Monster Pets
• Product Dimensions: 7 x 1.5 x 3 inches; 1 Ounces

• Editor's Impressions Of The Penn-Plax CH850
• Heat Quality [star rating='3.3']
• Quality [star rating='3.6']
• Value For Money [star rating='3.8']
• Affordability [star rating='4.2']

Here Are Some Other Related Aquarium Heaters

2. VIBIRIT Aquarium Heater,Betta Fish Tank Heater 25W Smart Small Aquarium Heater,Energy Efficient Subm...

User Ratings: 66 8

VIBIRIT First Impressions

"There was only~0."

It's only been set up for a month we'll see how well it does in a few months. After several weeks of running the heater. Just be careful and keep an eye on your temp settings when you have kids over! I noticed my old hygger heater beginning to fail and my wife ordered this one. This product came in the nick of time! I went ahead and went with the the larger 300W for my 45 gallon. It does blend well in some setups and may look bulky in others.

• VIBIRIT Aquarium Heater,Betta Fish Tank Heater 25W Smart Small Aquarium Heater,Energy Efficient Submersible Thermostat + Thermometer Sticker
• Fully Automatic Temperature Control Chip:VIBIRIT submersible aquarium heater automatically adjusts the temperature between 75°F and 82°F (24°C to 28°C). It is different from the traditional manual adjustment of the aquarium heater and does not need to be set. And will automatically turn on/off to achieve the setting temperature constantly and stably, Energy-efficient.
• 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.
• 25W Fish Tank Heater is suitable for 3 to 5 gallons and can be used in mini fish tanks and aquariums. The super-designed suction cups hold the heater tightly in the aquarium. Easy to hide in the water tank.
• Included Temperature Sticker: You can attach the temperature sticker to the surface of the water tank(don't put in the water), through which you can monitor. The easy-to-recognize blue color indicates the current temperature of your aquarium water. Temperature bar is for reference only
• Parameters and Quality Assurance: working power 25w, frequency: 50/60Hz, voltage: 110-120V, waterproof rating IP68. This product aquarium heater has passed CE, ROHS, FCC certification. Explosion-proof, waterproof, anti-scalding, high temperature and other safe operation.
• Manufacture: VIBIRIT

• Editor's Impressions Of The VIBIRIT
• Heat Quality [star rating='4.3']
• Quality [star rating='4.4']
• Value For Money [star rating='4.7']
• Affordability [star rating='4.4']

3. Aquarium Heater, 100W 300W 500w Submersible Fish Tank Heater with Titanium Tube Thermostat System LE...

User Ratings: 73 8

SeaELF First Impressions

"Temperature!"

My fish likes to get close to it and he has never been hurt by it. I like the fact that it comes with a digital thermometer. I will definitely be buying another one for my other tanks at bigger one. So when I first received it it didn't work and I was very disappointed. I will be ordering more of these in the future. I was worried about the quality but I am thoroughly impressed with this heater! Bought it as a chiller for the k40 CO2 laser.

• Aquarium Heater, 100W 300W 500w Submersible Fish Tank Heater with Titanium Tube Thermostat System LED Digital Play and Remote Controller for 50-80 Gallon Tank
• Premium Titanium Alloy Material & pinpoint probe : The seaELF aquarium heater made by premium titanium alloy, shatterproof, anti explosion, anti cracking and anti-corrosion than quartz glass aquarium heater and stainless steel tank heater, good for fresh water and sea water. The precise sensing probe on the top of heater for pinpoint temperature and double seal design to ensure safe operation. The heating tube with CE, RoHS, FC approved and the plug with UL approved.
• Remote Controller & LCD Display : Update design with remote controller and LCD display , easy to setting and adjusting the aquarium heater’s temperature by remote controller and easy know the tank’s temperature by the LCD display, no need to buy extra temperature and wet your hands to setting the temperature again. (the remote is non waterproof, please keep it away from water).
• Intelligent Overheating Protection & Lack-of Water Protection : With double sensing probe on the top, it will accurate detect the temperature and water, once overheating or the water cant cover the top of this aquarium heater, it will automatic power-off, prevent electric shock & burns and keep you and your fish safe. (E2,E8 display are mean overheating, please increase the water circulation when it happens)
• Intelligent Thermostat Heating System ：This aquarium heater made with intelligent thermostat heating system, it will heating automatically once the water temperature is less than the setting temperature and stop heating once it reached the setting temperature. Keep the aquarium water in a same temperature environment to protect fishes, amphibians, turtles and so on.(Please install it near a strong water flow).
• 100% satisfaction : Just to show you how confident we are that your fish will enjoy the aquarium water heater, we are giving you a 6 month money-back guarantee, if there any problem when you install the heater or any un-satisfied with this product, please feel free to contact us for resend or refund, we will dealing with it within 48 hrs.
• Manufacture: SeaELF

• Editor's Impressions Of The SeaELF
• Heat Quality [star rating='4.8']
• Quality [star rating='4.6']
• Value For Money [star rating='5']
• Affordability [star rating='4.4']

4. hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 Gallo...

User Ratings: 79 5

hygger HG-925 First Impressions

"Thank you for reading."

They shipped us the upgraded version that also heats! But I am single and don't have to worry about this. Ick for instance detaches from fish at 86 degrees and dies at 89. I confirm it with my cooking digital probe thermometer. This is a powerful heater that holds temperature very well. I am very happy with this purchase. Was very impressed with the quality of this heater.

• hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 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
• 300 watt aquarium heater, voltage 110-120 V, heater rod 7.7 inches long, suitable for tank capacity 30-60 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 [star rating='5']
• Quality [star rating='3.8']
• Value For Money [star rating='3.7']
• Affordability [star rating='3.6']

5. JBJ Arctica Aquarium Chiller, 1/15 HP

User Ratings: 71 11

JBJ DBI-050-D First Impressions

"I do recommend."

I am very happy with this purchase. No biggie, but annoying nonetheless. The heater is easy; turn the dial to set temp and plug in. I emailed the email it says to and told them. So far I like it setup was super easy. The heater is easy; turn the dial to set temp and plug in. Seems to keep the temp n the tank fairly regular.

• JBJ Arctica Aquarium Chiller, 1/15 HP
• One of the most quietest chillers out in the market; highly efficient condenser-uses less energy; Titanium coils are the most efficient for heat exchanging; corrosion resistant; contemporary and small foot print design.
• Quick installation; in line series
• The ost advanced aquarium Chiller
• Country Of Origin: China
• Manufacture: Transworld Aquatic
• Product Dimensions: 12 x 16 x 15 inches; 25 Pounds

• Editor's Impressions Of The JBJ DBI-050-D
• Heat Quality [star rating='4.1']
• Quality [star rating='3.5']
• Value For Money [star rating='3.3']
• Affordability [star rating='5']

6. Teco WiFi Capable TK-1000 Tank Chiller, 1/4 HP w/Built in Heater

Teco First Impressions

"Pricing was good."

The temperature gauge is fairly accurate in my 55 gallon tank. I bought a similar one at the pet store and it barely worked. I use this little heater for my 10 gallon quarantine tank. Easy to read the temp and know exactly how warm the water is. 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. They promptly fixed the issue without any delays or drama.

• Teco WiFi Capable TK-1000 Tank Chiller, 1/4 HP w/Built in Heater
• The Teco WiFi Capable TK-1000 Tank Chiller, 1/4 HP w/ Built in Heater, features an internationally-recognized high-end compressor and titanium coaxial heat exchanger for high performance, low energy consumption and low noise levels. A unique feature of this chiller is the integrated 400 watt heater.
• This version is designed to work with the TECOnnect WiFi Controller (separate purchase) that works with your smart phone to set and monitor water temperatures. Most importantly, the Controller will sound an alarm when your set temperature is out of range.
• 9 degree cooling up to 260 gallons. 39 degrees cooling for 55 gallon aquariums. Note: These temperature pull-down ratings are in ideal situations. We highly recommend purchasing a chiller one size larger than the specifications would lead you to believe is necessary.
• Does not have a pump. The required flow through the chiller is between 132 gph and 211 gph. Includes integrated 400 watt heater. Dimensions: 12.2" x 12.2" x 18.03". 5/8" tube diameter In/Out Water Connection.
• Works with the TECOnnect, a WiFi Controller (not included). The TECOnnect works with Android 4.1 or higher and iOS 8.2 and higher.
• Manufacture: Teco

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

7. Inkbird Pre-Wired Digital Dual Stage Temperature Controller Outlet Thermostats 110V 1100W With 6.65f...

User Ratings: 64 10

Inkbird First Impressions

"I do recommend."

This heater warmed it right up and now my Betta and guppies are more active. But my guys don't read them and don't listen! I was amazed how quickly I got to my temperature I need it 78 degrees. Personally for me the housing doesn't bother me. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. The temperatures are pretty accurate. I'm in the process of setting up for tanks.

• Inkbird Pre-Wired Digital Dual Stage Temperature Controller Outlet Thermostats 110V 1100W With 6.65ft DC Cord NTC Stainless Probe Sensor for Aquarium, Incubator ect
• The sensor can easily be replaced.
• Maximum output load: 1100W (120V).
• Supports Centigrade or Fahrenheit unit display.
• Alarm when over-temperature and sensor error.
• Dual display window, be able to display measured temperature and set temperature at the same time.
• Item Weight: 1.06 pounds

• Editor's Impressions Of The Inkbird
• Heat Quality [star rating='4.6']
• Quality [star rating='4.8']
• Value For Money [star rating='5']
• Affordability [star rating='3.7']

8. 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']

9. 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']

10. ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat

User Ratings: 73 5

ViaAqua VA 300Q First Impressions

"Highly recommended."

The temperature lights up so it's very easy to read. The heater is super thin and the reflective surface is interesting. Was very impressed with the quality of this heater. The line is there due to regulations in certain countries. They shipped us the upgraded version that also heats! I use this little heater for my 10 gallon quarantine tank. I used to try those other cheap heaters sold on amazon.

• ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat
• High quality quartz glass
• Fully-submerisble
• Visible temperature setting
• For use in fresh or saltwater aquariums
• Manufacture: Commodity Axis
• Product Dimensions: 1.13 x 1.13 x 14.8 inches; 10.88 Ounces

• Editor's Impressions Of The ViaAqua VA 300Q
• Heat Quality [star rating='4']
• Quality [star rating='3.8']
• Value For Money [star rating='3.6']
• Affordability [star rating='3.9']