EHEIM Jager Aquarium Thermostat Heater 50W

This is my first Enheim/Jager heater and so far I'm very happy with it. It holds a steady temp (+/1) and has been reliable thus far. The ability to re-calibrate the heater (while confusing at first if you neglect to read the instructions like I did) is a nice feature and an uncommon one. Another nice feature is the run dry protection, the heater automatically shuts off when it's out of water. I tested this feature as soon as I received the unit because I have a nasty habit of doing water changes and forgetting to unplug my equipment and the feature works as advertised.

For some reason, the product description has the dimensions listed as 1" x 1" x 1". While that would be awesome and I'd pay 4 times the price for the reliable heater that size, the unit is actually 9" long (23cm). I had to look this info up on another site prior to purchasing, because size does matter sometimes.

I would recommend this heater. FYI I'm using it on a ~7 gallon (~26L).

In response to the previous comment, these heaters are top of the line. A 1 degree difference is not significant so you're just splitting hairs buddy. For lack of a better word the heater is perfect, been working flawlessly for the last 4 years, no complaints here.

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This heater is great! I have been wanting one for my 2.5 gallon betta tank, but most thermometers for a tank that small are unregulated. I was going to get the 25 watt heater, but it was just as big as this one and only a few dollars less. Therefore, I went with this one because I could also put it in a bigger tank. It keeps the temperature from fluctuating very well, even when put in the tank diagonally. Just keep in mind, in a tank this small the dial will have to be significantly below the desired temp. to get it where you actually want it. But it works well, I would definitely recommend it.

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wow, looks match performance. you can calibrate it if needed. high tech looking so I didn't feel the need to hide it behind plants

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great all around. see other review i have of 125w

only thing i wish is it was a little smaller. also instructions says to mount vertically but i use it horizontally as well with no problems. make sure you are careful when you set temp because i am not sure if mounting horizontally affects how the heater adjust temp.

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