The 8 Best Aquarium Heaters

Not all buyers are willing to pay an impressive amount for an aquarium heater. In such cases, it makes sense to look at budget models like the Atman J25-50W. Despite the minimal functionality and cost, the device is often ordered on Yandex.Market, and the reviews about it are mostly positive. The power here is low - only 50 W, there is a temperature controller from + 18 ° C to + 34 ° C in 1 ° C increments. The heater can be used in aquariums up to 50 liters. The submersible instrument in a robust glass housing is suitable for fresh and salt water.

The most budget model with a thermostat has an average rating on different resources. It happens that the settings get lost and the temperature differs from the selected one, but usually this is solved by rebooting the device. There are no other complaints about the product - the assembly is of sufficient quality, the heating rate is good. Management is convenient even for those who have not worked with such devices before.

BARBUS HEATER 012 is the newest version of the sensational heater with stylish design and decent performance. The power of the model reaches 300 W, there is a thermostat with the ability to set the temperature from +20°C to +32°C. The submersible device is recommended for use in aquariums with a volume of more than 250 liters and less than 350 liters. Its case is metal, the cable here is of medium length - 150 cm. The heating element is reliably protected from water, the likelihood of fish getting burned is also minimized due to a successful design.

The reviews complain about inaccurate temperature control - there are errors within 1-2 degrees. There are also interruptions in automatic switching on, since the sensors do not always work. If we exclude all these disadvantages, BARBUS HEATER 012 can be considered the best option. It is quite budgetary, easy to use, has well-thought-out protection against any possible troubles.

The model from the German manufacturer Eheim received a power of 150 W - this is three times more than the previous version. The temperature here is regulated from +20°C to +32°C. Like many models in the top, the device is in a glass case with a soft plastic braid. Due to this, it withstands immersion in salt and fresh water, and also protects the heating element from curious fish. Rubber suction cups are used for mounting on the walls of the tank. The 170 cm long cable will provide comfortable installation in any part of the aquarium.

Product reviews can be found on various sites. Usually they write about the same thing: buyers praise the appearance and build quality of the device, they like reliable suction cups and a long cord. There is also an indicator that turns off the power when the water level drops. Not everyone is comfortable with the fact that the volume of the aquarium should be in the range of 200-300 liters - only then the heater shows maximum efficiency.

The fully submersible model is characterized by practicality, universal design, good thermostat accuracy. The thick-walled flask of the device is made of borosilicate glass, which does not crack under temperature extremes or mechanical stress. When installed on the suction cups included in the package, it is placed in the largest of amateur aquariums (150–225 liters in volume). The provided power of 150 W is enough to keep the device working.

The heating element is built-in double ceramic, which is environmentally friendly and prolongs the service life of the device. The thermostat has a small step of 0.5 degrees, which increases the accuracy of the readings, in the range of 19-31 degrees. The upper limit can be attributed to the minuses of the development, since competitors offer analogues with a “ceiling” of 32–34 degrees. Therefore, such a device is not intended for the most heat-loving underwater fauna. Light indication and a 2-meter cable are among the positive features of the model.

One of the world's most experienced brands of aquarium accessories, which has a worthy reputation, modern production facilities and technologies, has implemented the best concept of a heater with an external connection to a filtration system in this flow-through model. This design generates a power of 200 W and is attached to containers up to 200 liters.

The ergonomic plastic housing has a compact size of 29*8*7 cm and is connected to the filter using mini hoses with a diameter of 12 mm. The thermostat can operate both in manual and automatic mode, providing a constant temperature from 18 to 34 degrees. The use of PTC technology does not allow the device to overheat, and the LED indicator indicates the active state of the heating element. Of the utilities, users also highlight the optimal cord length (1.4 meters). The disadvantage of the model is its high cost compared to analogues.

Such a fully submersible model with a thermostat is of interest due to both functionality and technical solution. Here the manufacturer relies on the durability of the device. To do this, the contacts are covered with a layer of gold, which does not oxidize in water over time. With the help of a thermostat, they close / open, which affects the operating cycle of the heating coil.

Importantly, an electronic relay is built into the design, which automatically maintains the temperature regime in the range from 18 to 32 degrees.The flask of the device, despite the apparent fragility, is quite impact-resistant, as it is made of an alloy of special plastic and glass. The model is designed for an aquarium with a capacity of 60-100 liters. Among its advantages, its owners include uniform heat distribution due to a ceramic radiator, build quality (each device undergoes mandatory computer testing at the factory), and a 2-year warranty period.

The following immersion heater will be the best solution for large aquariums, the volume of which is in the range of 90-200 liters. One of the features of the model was the built-in thermostat. With it, you can set any temperature value in the range from +20°C to +34°C. The power of the device is 150 W, the protection class is IPX8. There is also a 300 W version of the model, it will allow you to heat salt or fresh water in a 400 l aquarium. Thick glass, coupled with a plastic braid, protects the fish from burns. When the water level drops, an automatic shutdown is provided.

Customers like the fast heating, easy maintenance and operation of the JBL ProTemp S 150. The device is completely safe for fish, it is also convenient that you can set the desired temperature using a thermostat. Despite the small number of reviews, the model is considered one of the best-selling. The only negative is that it is often not available on Yandex.Market.

Homefish 2100 managed to become the best in the ranking due to the successful combination of price, quality and functionality.This immersion heater has a power of 100 W and is suitable for aquariums up to 100 liters. It has a built-in thermostat to change the temperature from +16°C to +32°C. The adjustment is very simple: you just need to scroll the wheel on the cover to the desired value. The body of the product is made of quartz impact-resistant glass with hermetic protection of the heating element. You can completely submerge it in salt or fresh water.

The reviews note the first-class workmanship and uniform heat transfer. The regulator rotates with effort, but this is even good, because the risk of overheating the water is minimized. But consumers attribute the disadvantages to the fact that the device does not always maintain the set temperature, there may be deviations of ± 4 ° C. In addition, the power is not the highest, but it should be enough for an aquarium.