Name: EHEIM - Thermocontrol e300 - Aquarium heater - 300w
Brand: Eheim
SKU: 3639010
Price: 35.99 EUR
Availability: InStock
Rating: 5 (3 reviews)

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EHEIM - Thermocontrol e300 - Aquarium heater - 300w

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€44.99

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The Eheim Thermocontrol e300 heater is of the resistance type. It is used to maintain a constant temperature in an aquarium of up to 400 liters . Power of 300 watts. 3 year warranty .

EHEIM adjustable heaters are state-of -the-art electronic devices with the best available technology. A sheath made of special laboratory glass increases the heating surface , serves as a heat shield and ensures optimum heat emission.

Description
Product Details

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

Advantages of EHEIM Thermocontrol e heaters

Precise temperature adjustment from 20 to 32°C
No readjustment necessary
Regulation accuracy ± 0.5°C
The heat is kept constant.
The control lamp indicates the heating function (red: heating; green: temperature reached)
Fully submersible (waterproof)
With dry-running protection (Thermo Safety Control)
The glass envelope increases the heating surface and ensures even heat emission.
Comfortable cable length of approx. 170 cm
Including double suction cup holder
10 powers for aquariums from 20 to 1200 liters.
Suitable for freshwater and saltwater
The highest quality and safety. – 3 years warranty
Made in Germany

Technical data of EHEIM thermocontrol e 300

Min. Temperature	20.00 °C
Max. Temperature	32.00°C
Performance at 50Hz	300.00 watts
For aquariums up to approx.	400.00 liters
the size	496.00mm
Diameter	36.00mm
Pure water	Yes
Sea water	Yes
Tension	230 volt
Standard power plug	USD

Product Details

Reference 3639010

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Show attestation

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5★

10/10

Based on 3 reviews

Benoit P.
Published Feb 07, 2026 at 08:46 pm (Order date: Jan 30, 2026)

5

It's not exceptional but it breathes quality, we'll see how long it lasts. Very easy to set up, everything is provided in the box for support. (Translated review)
Stefan Roy D.
Published Sep 19, 2025 at 10:32 am (Order date: Sep 08, 2025)

5

Mycket nöjd
Jean Pierre M.
Published Dec 03, 2023 at 05:55 pm (Order date: Nov 25, 2023)

5

Meets my expectations. (Translated review)

EHEIM - Thermocontrol e300 - Aquarium heater - 300w

Learn more

With the EHEIM precision heater, your fish receive exactly the right temperature - in any aquarium. Advantages of EHEIM Thermocontrol e heaters

Technical data of EHEIM thermocontrol e 300

Product Details

Frequently purchased together

Products from the same category

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

Advantages of EHEIM Thermocontrol e heaters