gotta watch those eheim heaters too.. I bought 2 recently and both fail within 6 months... I'm trying to get mine replaced through warranty.
how did you put in the water Rash ? Hope you didn't submerge all the way in (even okay to do that but the manufacturer is not recommend) . I had mine for long time, back 2008 till now in my 190 gallon with controller.
Even through Eheim is good brand but the built in thermosat is not good. I used to turn them in high temp so they can turn on all the time, and use controller for it.
I think the ones that fail the most in eheim are the 125w and the 175 I believe. I had one fail in me but that's why you shouldn't have a heater without a controller
agreed on controller, most of the heater in the same type doesnt have good temp controller.