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Over Temperature Protection:
When the water temp over 95℉,the heater will auto stop heating. LED flash "HH" and beeping.It will restart heating when the water temp less than 93℉.
Low Temperature Protection:
The heater will start heating when the current water temperature is 1°F/1°C below the setting temperature.
Warm Tips
1. Please immerse the heater completely in water, do not bury it in sand, and do not expose it to air dry burning.
2. When it is necessary to stop working, disconnect power socket and wait for 15 minutes before changing water or removing heater.
3. The external temperature controller must be kept away from the water as it is not waterproof.
4. We recommend that the heater be installed underwater near the water intake, either vertically or horizontally. But vertical placement doesn't take up much space.
5. Please use the wave maker or circulating pump for the fish tank. Good water circulation helps the heat generated by the heater to be evenly dispersed.
6. It is necessary to clean and clean the heating plate regularly. If impurities are attached to the heating plate, the heating efficiency will be reduced.
Jk
Reviewed in the United States on February 1, 2025
Recommend, great tank heater handle the important demand
Grog
Reviewed in the United States on January 27, 2025
225 gallon tank
Michael Brainerd
Reviewed in the United States on January 20, 2025
I bought this double tube heater for my indoor turtle pond! it was very easy to setup and install, it was ready to go in minutes! it keeps my turtles water at the perfect temperature! it has an automatic shut off if it gets hot or the water gets too low! Great safety features!
V
Reviewed in the United States on January 13, 2025
Heater works great so far and is pretty spot on with the temperature
Greg Daniels
Reviewed in the United States on August 24, 2024
This heater is fantastic, you don't have to worry about the tube breaking on the conventional heaters plus it has a digital readout to set the temp that you want to maintain. I've had it now for several weeks and it maintains the exact temp you have it set at.
J.P
Reviewed in the United States on March 25, 2024
The media could not be loaded.
S. Blakley
Reviewed in the United States on February 22, 2024
This 300W aquarium heater has quartz heating elements that are durable and won't deteriorate in water. The heating elements are covered by a plastic structure to help keep fish safe. I installed this heater in a 100 gallon fresh water aquarium and it is more than powerful enough to maintain the 78 degree temperature setting I needed. A only six-feet, the power cord could be longer so that it will reach across larger tank stands. This short power cord issue exists with nearly all aquarium equipment.The temperature controller has a digital display that is relatively easy to operate and allows the temperature to show in either Celsius or Fahrenheit. The accuracy is calibrated in degrees Celsius, so expect the temperature to drift past the Fahrenheit setting selected as each degree increment of Celsius is larger than a degree increment of Fahrenheit. This minor variation does not affect your fish.The controller "saves" the settings in case of a power failure, which is a must have feature on an aquarium heater. The heater also shuts off and freaks out (sound an alarm) if the water level gets too low or it is taken out while still plugged in.I can't comment on the over temperature safety feature as I don't have an aquarium that I am willing to subject to that kind of heat. I will say that instead of having a set 95 degree shutdown point, it would be better to allow this to be set as well, or have it self-set to a temperature 5 degrees about the desired temperature.
cam
Reviewed in the United States on November 13, 2024
This works great in my 45 gallon aquarium
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