EHEIM thermocontrol 300 heater
SKU: 23659247811

EHEIM thermocontrol 300 heater

Sale price$166.45 Regular price$184.95
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Description

EHEIM thermocontrol 300 heaterWith the EHEIM precision heater, your aquatic friends will enjoy the perfect temperature, no matter the aquarium size. Diameter : 36 mm Height: 506 mm Performance at 50 Hz: 300 Watt Max. temperature: 34C Sea water: Yes Min. temperature: 18C Freshwater: Yes Packing dimensions (Width): 6. 5 cm Packing dimensions (Height): 58. 5 cm Packing dimensions (Depth): 5 cm For aquariums up to approx.: 1000 Liter For aquariums of about: 600 Liters Simple yet

With the EHEIM precision heater, your aquatic friends will enjoy the perfect temperature, no matter the aquarium size.

  • Diameter Ø: 36 mm
  • Height: 506 mm
  • Performance at 50 Hz: 300 Watt
  • Max. temperature: 34°C
  • Sea water: Yes
  • Min. temperature: 18°C
  • Freshwater: Yes
  • Packing dimensions (Width): 6.5 cm
  • Packing dimensions (Height): 58.5 cm
  • Packing dimensions (Depth): 5 cm
  • For aquariums up to approx.: 1000 Liter
  • For aquariums of about: 600 Liters

Simple yet effective ideas often yield the best results. Take the aquarium heater, for instance, designed as a rod that hangs effortlessly in the water to provide warmth. While the basic principle has remained unchanged for decades, significant advancements have occurred since then. The EHEIM adjustable heater is now a state-of-the-art electronic thermal device equipped with the latest technology. Its jacket, crafted from specialized laboratory glass, enhances the heating surface, acts as a heat shield, and ensures optimal, uniform heat distribution. Whether you need to heat a 20-liter or a 1000-liter aquarium, you have 9 sizes available to choose from.

Advantages of the EHEIM thermostatic heaters:

  • Accurate temperature adjustment from 18 to 34 °C
  • Easy and secure recalibration (±2 °C)
  • Temperature control precision of ± 0.5 °C
  • Maintains a steady heat level
  • Heating function indicated by a control lamp
  • Fully submersible (watertight)
  • Automatic dry run shut-off feature (Thermo Safety Control)
  • A glass jacket enhances the heating surface and guarantees optimal heat distribution
  • Convenient cable length of approximately 170 cm
  • Includes double suction cup holder
  • Nine sizes suitable for aquariums ranging from 20 to 1000 liters
  • Appropriate for both fresh and marine water

Precision, user-friendliness, quality, and safety — all “Made in Germany.” The EHEIM aquarium heater represents an evolution of the classic heating rod. You can precisely set the temperature between 18 and 34 °C and calibrate it if needed (±2°). The temperature control accuracy is ± 0.5 °C, ensuring consistent heating. A control lamp indicates when the heating function is active. The rod is completely watertight, can be fully submerged, and features an automatic dry run shut-off (Thermo Safety Control), making it suitable for both freshwater and saltwater environments. A key innovation is the glass jacket, which:

  • Expands the heating surface
  • Concentrates heat for optimal, even distribution
  • Acts as a heat shield (safe for your aquatic life)

The jacket is made from high-quality laboratory glass, designed for research use, ensuring it is free from harmful pollutants that could leach into the water. It is resistant to chemical and biological substances, and its construction prevents any fissures or cracks that could allow condensation to infiltrate. Even significant temperature changes during water changes will not harm this durable glass.

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: 23659247811

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Kiyoshi Higashimura
Pawtucket, US
★★★★★ 4
Quality
Flavor Name: Mango Habanero, Size: 16 Ounces (1 Count)
Very soft and tasty but Habanero is little too spicy for me.
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Reviewed in the United States on March 31, 2026
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Professor X
Fort Morgan, US
★★★★★ 5
Delicious
Flavor Name: Mango Habanero, Size: 16 Ounces (1 Count)
Delicious! I was worried it would be too spicy but while it is definitely spicy it is not so much so that it is unpleasant. Just enough to keep me from overindulging - a few pieces at a time is just right.
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Reviewed in the United States on May 5, 2026
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Alec
New York, US
★★★★★ 3
Moderate sweetness, low heat, way too soft and moist to be the chewy jerky I look for
Flavor Name: Mango Habanero, Size: 16 Ounces (1 Count)
To get to the point, this jerky is too soft and moist. Impressively tender actually. The sweetness and heat are nothing special, but you do get 1lb of jerky that is easy to snack on. For that, I have to give it at least 3/5. There are a ton of jerkys with better taste and texture that are definitely more expensive, but if you happen to like a super tender jerky with underwhelming flavors, then this is a good value.
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Reviewed in the United States on March 20, 2026
M
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Mammon
Chelsea, US
★★★★★ 5
Not your average sundried roadkill 😋
Flavor Name: Mango Habanero, Size: 16 Ounces (1 Count), Flavor Name: Mango Habanero, Size: 16 Ounces (1 Count)
Ok , so just don't look at the price. Think of it like this - go buy 3lbs of quality beef at the store , spices, gas to drive there , dry it down to 1 lb and you'll spend just as much . This is'nt gobble down stuff , its more of a special treat like a glass of fine scotch. Cudos to the lady with the review 'more mango than hot'. This is a tender quality jerky with a really good flavor and a nice balance of sweet n spicey, not burn your face off. It's really tender and the first thing I noticed was that it didn't get stuck in my teeth .... AT ALL. Even my own home made jerky that I trim up six ways to sunday gets stuck in my teeth. It's very tender , I think some folks mistake sticky sugary corn syrup gooped up roadkill for 'moist' . This is actually mostly just MEAT with a good moisture content and it was very yummy 👍
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Reviewed in the United States on July 18, 2025
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B
Fort Morgan, US
★★★★★ 5
Great socks
My fav socks. I am a size 9 women’s and they fit perfect. They are soft and comfortable
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Reviewed in the United States on April 16, 2026

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