Eheim Thermopreset 150 Aquarium Heater

EHEIM Thermopreset 150 Aquarium Heater

It really doesn’t get simpler than this. The EHEIM Thermopreset 150 Aquarium Heater is designed to maintain a constant, comfortable 25°C—the optimal temperature for most common aquarium fish. With no adjustment dial required, it’s a true set-and-forget heater that prioritises stability, safety, and reliability.

Using high-precision electronic control, the Thermopreset 150 delivers extremely accurate temperature regulation, while its highly efficient heating element ensures even heat distribution throughout the aquarium. Compared to the Thermocontrol range, the Thermopreset includes additional plastic protection, offering increased mechanical stability and durability.

Its slim 28.2mm diameter makes it discreet in the tank, even in smaller aquariums, and the integrated LED indicator allows easy visual confirmation of heating operation. Built with dry-running protection and backed by a 3-year warranty, this heater is ideal for both freshwater and marine setups.

Why choose the EHEIM Thermopreset 150?

• 🔥 Maintains a constant 25°C (maximum temperature)

• 🎯 High temperature accuracy via electronic control

• ♨️ Even heat distribution with efficient heating element

• 🛡️ Plastic protection for high mechanical stability

• 💧 Fully submersible with dry-running protection

• 👀 LED indicator shows heating function

• 📐 Slim, low-profile design – barely visible in the aquarium

• 🐠 Suitable for freshwater & marine aquariums

• 🛠️ Includes suction cups for secure installation

• ✅ 3-year EHEIM warranty

📏 Specifications

• Model: Thermopreset 150

• Wattage: 150W

• Maximum temperature: 25°C

• Recommended aquarium size: ~200L

• Maximum aquarium size: ~300L

• Diameter: 28.2mm

• Height: 223.5mm

• Freshwater: Yes

• Saltwater: Yes