EHEIM thermocontrol 250W Precision Aquarium Heater

Reliable, adjustable heating for aquariums up to 600 litres — made in Germany.

The EHEIM thermocontrol 250 delivers precise, consistent heating for large freshwater and marine aquariums up to 600 litres. Built with advanced German engineering, this fully submersible, electronically controlled heater offers safe, even heat distribution through a special laboratory-grade glass jacket.

Trusted for its accuracy and safety features, it includes Thermo Safety Control dry-run protection and an easy-to-adjust temperature dial with ±0.5°C accuracy.

Key Features

• Adjustable temperature control: 18°C to 34°C

• Precision accuracy: ± 0.5°C

• Simple recalibration option: ± 2°C

• Thermo Safety Control: automatic shut-off when dry

• Laboratory-grade glass jacket for safe, even heat distribution

• Fully watertight and submersible

• Heating function indicated by control lamp

• 170cm cable length with double suction cup holder

• Trusted Made in Germany quality

• 3-year manufacturer guarantee

Technical Specifications