How long should an eheim jager heater last?

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glb

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I have a 50w for my 12g nano. I've had it a few years and I'm not sure it's reliable anymore. Plus the recalibration instructions might as well have been written by aliens. Should I replace heaters after a while? If so, I'm leaning towards a Finnex titanium. Any advice would be appreciated!
 
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redfishbluefish

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The problem with heaters is that you never know when they are going to crap out......and they will crap out. I'm a firm believer in Eheim Jagers....I believe the best...the thickest glass of any glass heater. My second choice is Sera.

The other thing I'd recommend is running two "undersized" heaters instead of one normal sized heater. This way, when one craps out, the other will at least try to maintain temperature, and the slight drop in temp will let you know a heater is not functioning.

Now the most important thing, regardless of the brand of heater(s) is to run them through a controller. If you have a fancy-pants aquarium controller, great. If not, consider a stand alone temperature controller like Ranco....and if you're DIY savvy, they are relatively easy to build.
 
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Downbeach

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The weakest like in most of these heaters is their internal thermostats, so a decent controller is a great idea. Also, as Paul mentioned, some redundancy by using two heaters is also a good idea. I used an old Pinpoint dual temperature controller I had left over from the chiller days, but would still replace the heaters every couple years, as a precaution.
 

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I am on 3.5 years on a Sera and i haven't had an issue. I was curious too on the lifespan. Looks like a temp controller is the way to go.
 
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