SKU: 10903166423

EHEIM thermocontrol e 400 heater

Sale price$153.17 Regular price$170.19
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Description

EHEIM thermocontrol e 400 heaterWith the EHEIM thermocontrol e heating element, your fish will enjoy the ideal temperature with even greater precision in every aquarium. Often, the simplest ideas are the most effective, and this holds true for the aquarium heating element. It is designed to be easily submerged in the water, providing efficient heating just as it has for many years. However, the EHEIM controller heater has evolved into a highly advanced thermal device. The

With the EHEIM thermocontrol-e heating element, your fish will enjoy the ideal temperature with even greater precision in every aquarium. Often, the simplest ideas are the most effective, and this holds true for the aquarium heating element. It is designed to be easily submerged in the water, providing efficient heating just as it has for many years. However, the EHEIM controller heater has evolved into a highly advanced thermal device. The temperature can be accurately set and is measured with enhanced precision, maintained consistently thanks to advanced electronics. The special laboratory glass coating not only increases the heating surface but also serves as a heat shield, ensuring an even distribution of warmth. Whether you need to heat a 20-liter or a 1200-liter aquarium, there are 10 different sizes available.

Advantages of the EHEIM control heater thermocontrol-e

  • Accurate temperature adjustment from 20 to 32 °C
  • No need for readjustment
  • Control accuracy of ± 0.5 °C
  • Stable temperature maintenance
  • Control lamp indicates heating status (red: heating; green: temperature achieved)
  • Fully submersible and waterproof
  • Equipped with dry-running protection (Thermo Safety Control)
  • The glass coating enhances the heating surface and ensures optimal, uniform heat distribution
  • Convenient cable length of approximately 170 cm
  • Includes double suction holder
  • Available in 10 sizes for aquariums ranging from 20 to 1200 liters
  • Compatible with both fresh and saltwater
  • Exceptional safety and reliability - 3 years warranty

Combining precision, comfort, quality, and safety, the EHEIM thermocontrol aquarium control heater is a significant advancement over the original heater designed by engineer Eugen Jäger decades ago. Before its invention, maintaining an appropriate water temperature was a challenge, often employing complicated or unconventional methods, such as placing the aquarium in sunlight or near a heater or stove.

The thermocontrol-e represents the latest electronically controlled version of this legendary heating element. You can finely adjust the temperature between 20 and 32 °C with a control accuracy of ± 0.5 °C, ensuring a steady temperature. A control lamp will indicate whether the heater is active. This heater is completely waterproof, can be fully immersed, and features dry-run protection (Thermo Safety Control), making it suitable for both fresh and marine water.

One of the notable innovations is the glass coating, which:

  • Increases the heating surface,
  • Consolidates the heat, ensuring optimal and even heat output, and
  • Acts as a heat shield (safe for aquarium inhabitants to touch).

This coating is crafted from special laboratory glass designed for research purposes, ensuring it is free from pollutants that could leach into the water. It is resistant to chemical and biological substances, is crack-proof, and can withstand extreme temperature fluctuations, such as those that may arise during water changes.

Diameter Ø: 36 mm
Height: 496 mm
Power at 50 Hz: 400 Watt
Max. temperature: 32 °C
Saltwater compatible: Yes
Min. temperature: 20 °C
Freshwater compatible: Yes
Packaging: 6 Part(s)
For aquariums up to approximately: 1200 liters
For aquariums of about: 1000 liters
Manufacturer guarantee: 3 years

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 10903166423

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Candace Phillips
Houston, US
★★★★★ 5
Great quality item!
Size: XX-Large, Color: Black
Great quality & very durable! We love any product made by Carhartt! The size is always great, they do not shrink and the neckline does not stretch out easily, which makes for a great casual wear appearance!
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Reviewed in the United States on April 21, 2026
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Sam K
Omaha, US
★★★★★ 5
Big but good shirt
Size: Small, Color: Carbon Heather
Pretty big for a men's small pretty much a medium but I shrank it down with heat and it's good now still pretty big but I like it
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Reviewed in the United States on May 12, 2026
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nabit
Alexandria, US
★★★★★ 4
It’s ok
Size: XX-Large Tall, Color: Carbon Heather
The collar area felt kind of tight for him. The shirt is nice and long, but not thick.
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Reviewed in the United States on May 3, 2026
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G
West Palm Beach, US
★★★★★ 5
Carbon Carhartt
Size: XX-Large, Color: Carbon Heather
Classic Carhartt quality. Reasonably thick t shirt with a bit of stretch, but still sturdy and rugged. I put this on as soon as it arrived. I have nothing but a plethora of carhartt t's for the spring and summer. Added this color, Carbon Heather, to my collection. It looks plain cool. Almost like carbon fiber.
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Reviewed in the United States on May 15, 2026
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Plugvoxie
Waukegan, US
★★★★★ 5
Perfect for casual or weekend wear whether working at home or relaxing
Size: XX-Large Tall, Color: Dusty Olive
Comfortable material. Durable, I ordered size 2xl tall and love that it’s a casual shirt that is long and even if I lift my arms up my belly isn’t exposed. Neckline isn’t too tight I usually prefer a v neck but this shirt is so big the neck doesn’t feel tight or constricting. Great value for its price. I will be wearing this at home and on the weekends for sure.
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Reviewed in the United States on April 15, 2026

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