Reglerheizer 150W – thermostat-controlled heater for aquariums

This 150 W heater is intended for keepers of tropical fish who need a stable water temperature in tanks of 120–250 L. Its thermostat holds the set temperature by switching the heater on when the water cools below it, which removes the need to adjust it manually.

Why it matters

• The thermostat switches the heater on when water temperature drops below the setpoint, keeping the tank within the chosen range.
• The adjustment knob sits at the top of the unit, so the working temperature can be set quickly.
• IPX8 rating and full submersion capability allow it to run completely underwater, in both freshwater and marine tanks.
• At 28 x 3 cm including the knob, the heater is slim enough to be placed out of sight among decorations or plants.

Specifications

• Power: 150 W
• Operating range: 12–34 °C
• Recommended tank volume: 120–250 L
• Minimum water level: 21 cm
• Dimensions (including knob): 28 x 3 cm
• Weight: 0.23 kg
• Water type: freshwater and marine
• Water resistance class: IPX8
• Mounting: large suction cups, vertical or horizontal

What it works with

The heater suits freshwater and marine aquariums in the 120–250 L range, where the 21 cm minimum water level is met. The suction cups allow it to be fixed to the glass in either orientation. This listing covers the 150 W model only; heaters with other power ratings are sold separately.