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Eheim Jager TruTemp Fully Submersible UL Approved Heater

With the EHEIM precision heater your fish receive exactly the right temperature – in any aquarium.

Obvious ideas often are the best ones. For example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It is true that the principle is still the same as decades ago. But a lot has changed in the meantime. And today the EHEIM adjustable heater is an ultra-modern electronic thermal device with the best available technology. A jacket made from special laboratory glass increases the heating surface, serves as a heat shield and ensures optimum even heat emission. The models we sell are shown below:

Tank Size Recommended Wattage Heater Length
26–40 gallons 100 watt 12.2"
40–53 gallons 125 watt 12.2"
53–79 gallons 150 watt 13.4"
79–106 gallons 200 watt 15.7"
106–159 gallons 250 watt 17.3"


Benefits of the EHEIM JÄGER thermostatic heaters

  • Precise temperature adjustment from 64°F to 93°F
  • Simple and safe re-calibration (±2 degrees)
  • Temperature control accuracy 
  • Heat kept at a constant level
  • Heating function is indicated by a control lamp
  • Completely submersible (watertight)
  • With automatic dry run shut-off (Thermo Safety Control)
  • A glass jacket increases the heating surface and ensures optimum even heat emission
  • Handy cable length 
  • Including double suction cup holder
  • 9 sizes for aquariums from 5 Gallon up to 264 Gallons
  • Suitable for fresh and salt water

Product Manual




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