SKU: 49076651631

EHEIM thermocontrol 25 heater

Sale price$118.78 Regular price$131.98
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Description

EHEIM thermocontrol 25 heaterWith the EHEIM precision heater, your fish will enjoy the perfect temperature in any aquarium. Diameter 36 mm Height 243 mm Performance at 50 Hz 25 Watt Max. temperature 34C Sea water Yes Min. temperature 18C Freshwater Yes Packing dimensions (Width) 6. 5 cm Packing dimensions (Height) 34. 5 cm Packing dimensions (Depth) 5 cm For aquariums up to approx. 25 Liter For aquariums of about 20 Liters Sometimes the simplest ideas are the most effective. Take

With the EHEIM precision heater, your fish will enjoy the perfect temperature in any aquarium. Diameter Ø36 mm Height 243 mm Performance at 50 Hz 25 Watt Max. temperature 34°C Sea water Yes Min. temperature 18°C Freshwater Yes Packing dimensions (Width) 6.5 cm Packing dimensions (Height) 34.5 cm Packing dimensions (Depth) 5 cm For aquariums up to approx. 25 Liter For aquariums of about 20 Liters Sometimes the simplest ideas are the most effective. Take the aquarium heater, for instance, which functions as a rod. This heating rod is simply submerged in the water to warm it. While the basic principle has remained unchanged for decades, significant advancements have been made since then. Today, the EHEIM adjustable heater is a state-of-the-art electronic heating device utilizing the latest technology. A jacket crafted from specialized laboratory glass enhances the heating surface, acts as a heat shield, and guarantees optimal heat distribution. Whether you need to heat a 20 or a 1000-liter aquarium, there are 9 sizes available to accommodate your needs. **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 consistent temperature - Heating function is signaled by a control light - Fully submersible (watertight) - Equipped with automatic dry run shut-off (Thermo Safety Control) - A glass jacket expands the heating surface and ensures effective, even heat distribution - Convenient cable length of approximately 170 cm - Comes with a double suction cup holder - Available in 9 sizes suitable for aquariums ranging from 20 to 1000 liters - Ideal for both freshwater and marine environments - Precision, user-friendliness, quality, and safety “Made in Germany” The EHEIM aquarium heater represents an evolution of the iconic heating rod. You can precisely set the temperature from 18 to 34 °C and recalibrate it as needed (±2°). The accuracy of temperature control is ± 0.5 °C, ensuring that the heat remains stable. The control lamp indicates when the heating function is active. This rod is completely watertight, can be entirely submerged, features an automatic dry run shut-off (Thermo Safety Control), and is compatible with both freshwater and saltwater. A key innovation is the glass jacket, which: - Expands the heating surface, - Concentrates the heat for optimal even heat distribution, and - Serves as a heat shield (safe to touch without harming your aquatic life). The jacket is made from specialized laboratory glass developed for research purposes, ensuring it is free from harmful pollutants that could leach into the water. It is resistant to chemical and biological substances and does not have any fissures or micro-cracks that could allow condensation to penetrate. Even extreme temperature fluctuations that may occur during water changes will not damage this durable glass.
Shipping Notes
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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: 49076651631

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4.3 ★★★★★
Based on 22 reviews
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Verified Purchase
R. Kernisant
Carnegie, US
★★★★★ 5
Simple yet easy must have for discerning coffee drinkers
Color: Black&Silver
I seem to never get the same results from my coffee machine and it varied even more with the new brand that we just bought. I now have to make more adjustments with the water temperature, based on age, type of beans, etc. That affects the amount of ground dispensed and consistency in the shot until I get a new batch dialed in. So the only way to regulate these changes is to weigh both the beans and water. Using this little scale has made things easier, less frustrating and more predictable. What’s awesome is that it will automatically begin the timer with the first drop and stop when the pressure remains constant. Simple yet easy and super convenient. If you are looking for a great little digital scale this should do the trick. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
M
Verified Purchase
Memphis Tigers 🐯
Chelsea, US
★★★★★ 5
Great Digital Scale!!
Color: Black&Silver
The Maestri House S2 scale has been clutch for dialing in my espresso shots. Memphis heat or not, this thing stays accurate and steady. The timer starts up quick, the readings are fast, and the compact size fits perfectly under my Breville without feeling cramped. It’s built solid, charges by USB‑C, and the precision really shows when you’re trying to get that perfect pull.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
J
Verified Purchase
John
Grantham, US
★★★★★ 4
Has fit perfectly into my morning espresso
Color: Black&Silver
This seems to me to be an excellent small kitchen scale. I am new to the complexities of espresso making and have begun using this scale every morning to measure my dose and output. It is working just fine. Easy to operate, keep clean and store. I did not give it 5 stars because I have limited comparisons but I don’t expect and will not bother looking for anything better.
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Reviewed in the United States on May 30, 2026
D
Verified Purchase
D. Lakin
Port Orchard, US
★★★★★ 5
Perfectly fits what I needed for my espresso habit!
Color: Black&Silver
This Maestri House mini coffee scale is a great little tool for espresso and pour-over. The size is compact enough to fit under a portafilter or cup, and the 0.1g accuracy makes dialing in coffee much easier. I like the built-in timer, rechargeable USB-C battery, and clean black-and-silver look. It feels precise, practical, and easy to keep near the espresso machine. Great value for anyone who wants more consistent coffee.
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Reviewed in the United States on June 2, 2026
B
Verified Purchase
B. Swenson
Port Orchard, US
★★★★★ 5
Maestro House Mini Coffee Scale
I have begun to drink tea, pu’erh tea to be specific. I have several varieties and I have had a problem with getting consistent results. The varieties can be very different in size depending on when the leaves are harvested (leaves harvested in spring are much smaller). So the easiest way to get consistent results is by weight. This scale is very easy to use with a ceramic tea scoop, set the tea scoop on the scale, zero it out and add tea leaves. This has made my results much better, without the wild swings in strength I had been getting before trying to eyeball even measures. This scale gives me accurate measurements to one tenth of a gram.
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Reviewed in the United States on April 15, 2026

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