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Eheim JAGER Heater 250W

Eheim JAGER Heater 250W is a powerful, fully submersible aquarium heater designed for reliable temperature control in larger tanks. The Eheim JAGER Heater 250W features an adjustable thermostat, durable laboratory‑grade glass and even heat distribution, making it ideal for tropical community and discus aquariums.

$87.00

Out of stock

PRODUCT Details

The Eheim JAGER Heater 250W is a high‑output, fully submersible heater built to maintain a stable, accurate temperature in larger aquariums. Using Eheim’s trusted technology, the Eheim JAGER Heater 250W is perfect for tropical community tanks, discus setups and planted displays where precise, consistent warmth is essential.
Encased in special laboratory‑grade glass, the Eheim JAGER Heater 250W offers a large heating surface and excellent heat distribution. The glass jacket acts as a heat shield, helping to prevent hot spots and ensuring gentle, even warming of the water. It is also shock‑resistant and designed to handle temperature changes safely.

Key Features of the Eheim JAGER Heater 250W

The Eheim JAGER Heater 250W includes:
  • Adjustable thermostat for precise temperature control
  • Fully submersible design for flexible placement in the aquarium
  • Special laboratory glass jacket for even heat emission and durability
  • Dry‑run protection on modern models to help prevent damage if exposed to air
  • Strong 250W output, ideal for many larger aquariums
  • Reliable Eheim build quality for long‑term, stable performance
With the Eheim JAGER Heater 250W, you can maintain a consistent temperature range that suits sensitive tropical species, including discus and other warm‑water fish.

Suitable Tank Sizes for the Eheim JAGER Heater 250W

As a general guide, the Eheim JAGER Heater 250W is suitable for:
  • Larger aquariums (typically around 250–400 litres, depending on room temperature)
  • Tropical community tanks that need stable temperatures around 24–26°C
  • Discus and warm‑water setups that often run slightly higher temperatures
  • Planted display tanks where consistent warmth supports strong plant growth
Always consider your room temperature, tank volume and livestock needs when choosing the Eheim JAGER Heater 250W.

How to Use the Eheim JAGER Heater 250W Safely

To get the best performance from your Eheim JAGER Heater 250W:
  1. Place the heater in an area with good water circulation, such as near a filter outlet.
  2. Ensure the Eheim JAGER Heater 250W is fully submerged before switching it on.
  3. Set your desired temperature using the adjustable control dial.
  4. Allow several hours for the Eheim JAGER Heater 250W to stabilise, then confirm with a reliable aquarium thermometer.
  5. Always unplug and let the heater cool before removing it from the water to avoid thermal shock to the glass.
Regularly check your thermometer to ensure the Eheim JAGER Heater 250W is maintaining the correct temperature for your fish.

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