What is the top of the line aquarium heater?

[pops]

agreed, no issues with mine. going on year 5.

 

[that_fish_Guy]

I would have to say titanium as well...that's what I have and they have lasted longer than anything else I've used in the past years.

 

[jwh]

I have a number of different ones including Eheim, they all work ok, can't say I have found a significant difference in performance across the brands