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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4.1 ★★★★★
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Verified Purchase
Glenda
Port Orchard, US
★★★★★ 5
Can opener
Color: Green
Very easy to use. Battery last a long time before having to charge.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
A
Verified Purchase
Amy Mills
Belleville, US
★★★★★ 1
Stopped cutting cans after 31 days
Color: Green
This quit working exactly 31 days after delivery. Since the day of delivery counted as day 1, I am out of luck on my purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
J
JohnnyD.
Carnegie, US
★★★★★ 3
Mixed results using this auto can opener...
Color: Green
I had high hopes for this can opener, but was let down. This can opener failed me half of the times I tried to use it. For some reason it wouldn't cut through the paper surrounding the cans. I tried it on small, medium and large cans. It worked best on larger cans. I got it because I liked the idea of opening cans without having to contend with the sharp lids that inevitably fall back into the opened cans. It is unsanitary at best and a safety hazard at worst. On the plus side it is rechargeable, so no battery worries there. It fits nicely in the hand for ease of use. It appears to be of sturdy construction, so it's a high quality item. And being small it will store easily. The price is right and it represents a good value for your hard earned dollars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 27, 2025
C
CO DIYer
Natrona Heights, US
★★★★★ 5
Hands Free Operation; Safe Cutting
Color: Green
I used to have a manual (as in turn-the-crank) side-cutting can opener really liked it. It eventually wore out and I had relegated myself to the standard hand-crank top-cut version that often left a sharp lid and sometimes a little burr or sharp point where the cut wasn't complete and the you had to the tear/bend the lid off. With this mostly hands-free Side Cut Can Opener, sharp edges will be few, if any. I say "mostly hands-free" because you do have to position the opener on the can and push the button to start it and, when it finishes, you have to push the button again to tell it to stop. On the demo can in my video, the lip was such that the cut was right through that edge such that there were no sharp edges. It is possible that some cans may be designed such that the cutter falls below that rim and cuts the can edge in a way that leaves dull lid but a sharp can. These should be rare, but good to watch out for in case you get one. Always assume edges are sharp until you verify otherwise. You'll note in my video that the lid was a little difficult to remove. Some of that may be learning curve with this new opener, and some it may be that is just how it is! I accept that and choose to move forward using this new, safer can opener. Recommended.
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Reviewed in the United States on August 5, 2025
M
Verified Purchase
Mishele
Massapequa, US
★★★★★ 5
terrible item
it worked a few times and it doesnt work at all! Terrible item!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026

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