Heater problems?

kylarse

kylarse

Member
I have two eheim Jager 10 heaters in my 46 gallon tank, 66 gallon with sump. Heaters are installed on two separate digital aquatics pc4 units, both on channel 1. One of my pc4's reads 1.6 amps when the heater is on, the other does not show an amperage reading, so that feature may be bad on that pc4.

My room temperature is 68 degrees in the basement. I have the RKE set to keep them temperature at 78 degrees, but the heaters never turn off or reach the set point on the rke. Actual water temperature is 76 degrees, verified on two separate glass thermometers.

The eheim specs show that a single heater should be able to heat this volume of water. The heaters are set with their thermostats at 82 degrees and they are warm to the touch, so I know they are on.

What is the group experience with this heater? Should they be able to heat to 10 degrees above ambient? Do I need to bite the bullet and get 200 or 300 watt heaters? I'd like two, for redundancy.

Thanks in advance for the advice.
 
Do you mean two 100w heaters? What return pump are you using, internal or external? (it will also help heal the tank) I use a pair of jager 250W on a 175 total gal system and only one ever turns on. The room temp and tank temps are similar to what you have. I'd think 200w in heater should be enough to heat your 100 gallons.
 
Thanks, heaters are calibrated as is the rke. Forgot to mention this is a zero edge setup so the evaporative cooling is high.
 
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