[trilinearmipmap]

I am amazed that heaters are so unreliable, considering they are such a simple piece of equipment.

I haven't found a heater I can count on. Won, Finnex, Aquamedic titanium, Ebo Jagr - all have failed on me.

My current setup is two Stealth heaters, one in the sump controlled by an Aquamedic controller, the controller set to 80 degrees and the heater set to 82 degrees. The second one in the tank as a backup set to 75 degrees.

If the controller fails "on", the heater will stop when it reaches 82 degrees. If the heater fails or if the controller fails "off", the backup heater will kick in at 75 degrees. If my return pump fails, the in-tank circulation pumps and the in-tank heater will keep the tank at 75 degrees.