Aquarium Heater Survey
Aquarium Heater Survey
Here is a survey of aquarium heaters from the cichlid forum:
http://www.cichlid-forum.com/reviews/category_display.php?CatID=701.
While the Stealth heater ranks highly in the survey, I prefer a heater with an LED that indicates whether it is ON or OFF. I use the Eheim Jager heater because it has such an LED and because it can be easily recalibrated should its thermostat drift.
I operate my Jager heater fully submerged. Mounting a heater with its temperature selector above the water line exposes its thermostat to cooler air so you would need to recalibrate:
(1) Measure the water temperature with a thermometer
(2) Pry up the blue button
(3) Set the temperature selector to the measured water temperature
(4) Push the blue button back down
(5) Dial the desired water temperature
I don’t know what the best aquarium heater is but the thermostat on my Eheim Jager heater did save my tank when my controller’s probe fell out. The heater's thermostat is set a few degrees above the controller's set point. Should your controller drift or should its sensor probe fail, a good thermostatic heater provides a safety net.