EHEIM Jager Aquarium Thermostat Heater, 250-Watt

I bought this heater to replace a Ebo Jager that I had had in my 75 gallon tank and a 70 before that for 10 or 15 years total. I have tried a wide variety of heaters over the past 30 years and there is no other submersible heater that can match an Ebo Jager. The temperature setting was perfectly accurate, dead on at 78 degrees. Did a partial water change and quickly returns to 78 degrees even though I used relatively cool tap water.

This was recommended by many as a top notch aquarium heater so I ordered it. Put it in my 29 gal and it worked great...then the other day I noticed my temps inching up and the heater running even when the temp was higher than what it was set on. I started looking through the manual, oh wow is it bad, in an attempt to figure out what was going on. I am now sending a request to their tech support...and thank goodness it is warm now and I don't need to worry about my fish getting cold! Too bad I am beyond my 30 days with Amazon.

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Only used it for two weeks. The temp variance was off by about 2 1/2 degrees. This was adjusted by the variance tab. I check my water temp everyday when it is plugged in. A big plus for me is this is actually made in Germany. You don't see that much anymore. Good build construction. Also, many complain about Eheim being a big heater compared to others. Yes it is, but this extra size allows more surface area to dissipate heat (efficiency) and more separation between heating coils and thermostat.

Don't hesitate to buy one. Really one of the best in tank heaters.

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Works fine. Would have been five stars so far except for the oft-mentioned length. Placed it diagonally at the rear of a 55 long. No problem. Temp has stayed steady since the day I placed it. Had to buy in a hurry due to finding out about the potentially explosive Stealth Pro..

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I have been buying the Tetra brand aquarium heaters and they just don't perform and they just don't last. Although it is too early too tell the longevity of this device I can say without question that there was a visible quality difference just in the way the unit appeared and felt. It felt sturdy, and the attachment suction cups were also hiqh quality. With the Tetra heater, I was unable to get my tank above 74 degrees--which was ok but not optimal for the variety of fish that I have. I plugged in the EHEIM and within an hour I was up to 76. I waited a day to acclimate the fish then jumped the temp to 78. The fish are happy and I am too. I have always known of the quality of EHEIM filters and it appears to me that that same care and quality is included in their heaters. I am a fan!

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