heater question

[Sandman334]

i would do a water change just to be safe

 

[TwistedPenguin]

I would say that I have a total of at least 15 of these heaters. 5 or 6 of which has just up and quit. Mostly the new ones. Seems they quit right after the whole 90 day return thing. I will be using different heaters from now on.
If they are working, then they are great. But you get no warning when they are not working either. I am going to try out the titanium 1000W heaters next.

Well don't get Hydors. I've got 7 or 8 of the 300 & 400 w Hydors that I've thrown away. I'd ordered them all at once and one after the other kept overheating tanks. They wouldn't shut off.
I wonder what a good fool-proof heater is......?