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Item #:
19299511
Eheim Thermocontrol e300 Heater
Item #:
19299511
AED 290
Price Details
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Precise temperature adjustment from 68°F to 89°F (20 to 32°C)
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What Stands Out
Precise Temperature Control
The Eheim Thermocontrol e300 offers accurate temperature regulation, ensuring your aquarium's environment is stable and ideal for aquatic life, preventing temperature fluctuations for healthier fish.
Energy Efficient Design
This heater is designed to consume less energy while maintaining optimal heating, making it both an eco-friendly choice and cost-effective for long-term aquarium maintenance.
User-Friendly Interface
With a straightforward adjustable thermostat and LED display, the Eheim heater makes monitoring and setting temperatures easy, catering to both novice and experienced aquarium enthusiasts.
Product Details
| Item Weight | 1.1 pounds (500 grams) |
| Manufacturer | Eheim |
| Item model number | AEH3639090 |
| Date First Available | October 17, 2019 |
| Item Package Dimensions L x W x H | 21.81 x 2.52 x 1.97 inches (55.4 x 6.4 x 5 cm) |
| Item Weight | 0.5 Kilograms |
| Brand Name | Eheim |
| Target Audience Keyword | fish |
| Directions | USE AS DIRECTED ON PACKAGING |
| Model Name | AEH3639090 |
| Color | Black |
| Material | Plastic |
| Age Range Description | All Life Stages |
| Number of Items | 1 |
| Included Components | Heater |
| Specific Uses for Product | Indoor |
Who Should Buy?
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Aquarium Enthusiasts
Ideal for hobbyists wanting precise temperature control for their tanks, ensuring optimal conditions for fish health.
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Tropical Fish Owners
Suitable for tropical fish owners requiring consistent, reliable heating to maintain ideal habitat conditions for their aquatic pets.
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Large Tanks
Designed for larger aquariums where a powerful heater is necessary to evenly heat the entire water volume effectively.
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Small Aquariums
Not ideal for small tanks due to its higher wattage and heating capacity, potentially leading to overheating.
Product Description
Eheim Thermocontrol e300 Heater
About This Item
Introducing the Eheim Thermocontrol e300 Heater Ensure the perfect temperature for your aquarium with the Eheim Thermocontrol e300 Heater. With its precise temperature adjustment ranging from 68°F to 89°F (20 to 32°C), you can easily create the ideal environment for your aquatic pets. Thanks to its control accuracy of 0.5°C, the Eheim Thermocontrol e300 maintains a constant heat, providing a stable and comfortable living space for your fish.
The control lamp indicates the heating function, so you can easily see whether the temperature is still heating up or has reached the desired level. Designed for both fresh and marine water setups, this fully submersible heater is built to last. Made in Germany, it guarantees the highest safety and reliability for your aquarium. The thermo safety control offers dry-running protection, ensuring the heater will automatically shut off if it's not submerged in water. The Eheim Thermocontrol e300 Heater also features a glass coating that increases the heating surface and ensures optimum, even heat output.
This innovative design provides efficient heat distribution throughout your tank, promoting a healthy and consistent environment for your aquatic friends. Included with the heater is a double suction holder, making it easy to install and position the Eheim Thermocontrol e300 in your aquarium. With its wattage of 300W, it's suitable for aquariums ranging from 159 to 265 gallons in size. The power cord length of 5.5' gives you flexibility in finding the perfect spot for your heater. Whether you're a beginner or an experienced aquarium enthusiast, the Eheim Thermocontrol e300 Heater offers all the features you need for a successful aquatic environment.
Don't compromise on quality and choose the heater that's trusted by professionals worldwide. Order the Eheim Thermocontrol e300 Heater now and experience the highest level of safety and reliability for your aquarium. Provide your fish with the perfect temperature they deserve.
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Customer Questions & Answers
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Question:
What is the Eheim Thermocontrol e300 Heater designed for?
Answer: The Eheim Thermocontrol e300 Heater is designed for heating aquariums, ensuring that your aquatic environment maintains a stable and comfortable temperature. This heater is ideal for both freshwater and marine aquariums, making it versatile for various aquatic pets. The precise temperature control is beneficial in preventing temperature fluctuations that can stress fish and plants. Its high-quality construction and advanced technology facilitate efficient heat distribution across the tank. -
Question:
How do I set the temperature on the Eheim Thermocontrol e300 Heater?
Answer: To set the temperature on the Eheim Thermocontrol e300 Heater, simply use the integrated digital display. It allows you to adjust the temperature settings with ease, ensuring your aquarium reaches the desired warmth. This heater features an intuitive interface making it user-friendly for all hobbyists, from beginners to experts. Regular monitoring of the temperature display ensures you can quickly react to any changes, which is critical for maintaining a healthy aquarium ecosystem. -
Question:
What is the power output of the Eheim Thermocontrol e300 Heater?
Answer: The Eheim Thermocontrol e300 Heater offers a power output of 300 watts, making it suitable for large aquariums, typically up to 800 liters. Its robust power ensures that water is heated quickly and consistently, which is vital for the wellbeing of fish and aquatic plants. This heater is particularly advantageous when creating a stable environment in larger setups or aquariums with significant temperature fluctuations, ensuring a comfortable habitat for your aquatic life. -
Question:
Is the Eheim Thermocontrol e300 Heater submersible?
Answer: Yes, the Eheim Thermocontrol e300 Heater is fully submersible. This feature allows for flexible placement in the aquarium, and it can be installed vertically or horizontally. A submersible design helps ensure even heat distribution throughout the tank. By operating below the water surface, the heater works more efficiently, making it an essential component in maintaining the desired temperature in your aquatic environment. -
Question:
How do I clean the Eheim Thermocontrol e300 Heater?
Answer: Cleaning the Eheim Thermocontrol e300 Heater is simple to ensure its optimal performance. Gently remove it from the tank and use a soft cloth or sponge to wipe away any algae or mineral deposits. Ensure you do this during routine maintenance to prevent buildup, which can affect heating efficiency. Regular cleaning is crucial for longevity; it helps maintain accurate readings and keeps your aquarium environment stable and healthy. -
Question:
What safety features does the Eheim Thermocontrol e300 Heater have?
Answer: The Eheim Thermocontrol e300 Heater is equipped with several safety features, including overheat protection and a built-in temperature sensor. These features work together to prevent the heater from running dry or overheating, both of which can be detrimental to your aquatic life. This safety guard gives peace of mind, allowing you to focus on other aspects of aquarium care while ensuring a stable habitat for your fish and plants. -
Question:
Can I use the Eheim Thermocontrol e300 Heater in a saltwater aquarium?
Answer: Yes, the Eheim Thermocontrol e300 Heater is suitable for saltwater aquariums as well as freshwater tanks. Its construction is designed to resist corrosion, which is essential in the saltwater environment. Using this heater in a reef or marine setup ensures that the water temperature remains consistent, promoting a healthy habitat for marine fish and invertebrates while maintaining the delicate balance required in saltwater systems. -
Question:
What temperature range does the Eheim Thermocontrol e300 Heater offer?
Answer: The Eheim Thermocontrol e300 Heater offers a temperature range of 18°C to 34°C (64°F to 93°F). This wide range is perfect for catering to various species of fish and plants that thrive in different temperature conditions. It's particularly useful for hobbyists who may want to switch between species or adjust for seasonal changes, ensuring the optimal health and wellbeing of your aquarium inhabitants. -
Question:
How long is the power cord for the Eheim Thermocontrol e300 Heater?
Answer: The Eheim Thermocontrol e300 Heater features a power cord that is typically about 1.5 meters long. This length provides flexibility in placement within your aquarium setup, making it easier to position the heater away from the filter or intentionally create zones within the tank. A proper layout is essential for effective water circulation and temperature distribution, which contributes to a balanced aquatic environment. -
Question:
Where can I buy the Eheim Thermocontrol e300 Heater in UAE?
Answer: You can conveniently purchase the Eheim Thermocontrol e300 Heater in UAE through Ubuy. Ubuy offers a user-friendly shopping experience, making it easy to browse and select the products you need for your aquarium setup, ensuring you have quality equipment for your aquatic pets.
Eheim Aquarium Heaters AEH3639090 Editorial Review
Eheim Thermocontrol e300 Heater The Eheim Thermocontrol e300 Heater is a popular choice among aquarium enthusiasts. It is suitable for both saltwater and freshwater tanks and can handle tanks ranging from 5.2 to 264 gallons in size. The heater has a built-in thermostat that helps maintain a Consistent temperature in the tank. Customers have praised the quality and durability of the Eheim Thermocontrol e300 Heater. Many have found that it holds its temperature steady and is easy to set. The red pilot light indicates when the heater is actively heating, while the green light indicates standby mode. However, there have been some complaints about the accuracy of the temperature control. Some users have reported that the temperature often fluctuates, even when the heater is set to a specific temperature. This inConsistency can be frustrating, especially for those with sensitive fish or specific temperature requirements. Another issue that some users have faced is condensation inside the heater, which indicates a broken seal. While this seems to be an isolated issue, it is worth noting. In summary, the Eheim Thermocontrol e300 Heater is generally well-received for its quality and durability. It is a reliable choice for maintaining the temperature in aquariums. However, some users have experienced inaccuracies in temperature control and occasional seal issues.
Customer Reviews & Ratings
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Pros
- Suitable for both saltwater and freshwater tanks
- Wide range of tank sizes supported
- High-quality Construction
- Easy to set and use
- Clear indicator lights for heating and standby mode
Cons
- Temperature control may be inaccurate
Platform Trust & Buyer Confidence
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“Excellent experience”
11 June 2026 · via Trustpilot
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“I had an excellent experience with Ubuy UAE. I ordered a product from the USA, and the website clearly mentioned that deliveries might be delayed due to the current situation in the Middle East. Despite that, my order arrived in just one week, which exceeded my expectations. The shipment was handled by DHL, and the entire delivery process was smooth, fast, and hassle-free. The package arrived in perfect condition with no issues at all. What impressed me the most was the pricing. The product was significantly cheaper than ordering the same item directly through Amazon USA and shipping it to the UAE, where I would have had to pay higher delivery charges and additional customs fees. Ubuy provided great value, transparent communication, and reliable delivery. Based on my experience, I would definitely use them again and highly recommend them to anyone in the UAE looking to purchase products from overseas. Thank you, Ubuy UAE, for a fantastic shopping experience!”
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“On time delivery and great product at a really great price!”
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03-Jul-26 · via Trustpilot
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“Excellent experience! The service was top-notch, reliable, and very fast. I am completely satisfied with their professionalism and highly recommend Ubuy UAE to everyone.”
02-Jul-26 · via Trustpilot
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AED 290
Order now and get it around Tuesday, August 18
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