Electronic glass aquarium heater designed for small to medium-sized tanks from 7.9 inches in height. Available in two wattage options, 50 W and 100 W. Ideal for both freshwater and saltwater aquariums. This heater features a built-in microprocessor that automatically regulates the heating power to keep the water temperature stable and prevent sudden changes. Thanks to this advanced technology, the heater requires no maintenance, making it a significant benefit for users. You can relax knowing that FIX 2 will automatically manage the temperature of your aquarium water. Energy efficient, this aquarium heater utilizes an integrated Smart Heating System (SHS) that adjusts the heating power based on what is necessary to warm the water. This system optimizes energy consumption, leading to considerable savings. Notably, the device is exceptionally precise, maintaining the temperature within ±0.9 °F [±0.5 °C]. This precision is crucial for ensuring a healthy environment for your aquatic pets. LED indicators for operation mode are located at the top of the heater, providing clear information: a steady LED light means the temperature is held at 77 °F [25 °C]; slow blinking indicates heating is in progress; and fast blinking signals that the temperature has exceeded 77 °F [25 °C].

Introducing our Flow Heater, the first model equipped with a Smart Heating System (SHS) – an innovative technology for smart power adjustment. This advanced microprocessor fine-tunes the heating power to sustain the desired temperature within your aquarium. As a result, the heater operates smoothly, preventing sudden temperature fluctuations and minimizing stress for its aquatic inhabitants. With its electronic thermostat, the LED display not only indicates the set temperature but also the current water temperature. To ensure the aquarium is safeguarded against overheating, electronic temperature sensors automatically deactivate the heater when there’s no water flow. Positioned on the outlet hose of the external filter, this design ensures that heated water is evenly circulated throughout the tank. Since the heater is mounted externally, it frees up space inside the aquarium, allowing for greater flexibility in your interior design. This revolutionary flow heater features a Smart Heating System that adjusts the heating output based on the tank size and surrounding conditions to enhance energy efficiency. Equipped with a high-precision electronic thermostat that maintains an accuracy of ± 0.9 °F [0.5 °C] within the range of 68 to 91 °F [20 to 33 °C] Temperature adjustment is effortless with the One Touch System The LED display provides both the set and current temperature readings Includes three temperature sensors – two electronic and one thermal fuse Automatically turns off in the absence of water flow Compatible with ⁵/₈ / ⁵⁵/₆₄ inch diameter hoses for both freshwater and marine aquariums Included in the package are the heater, two sturdy mounting brackets, and clamping nuts. Proudly made in Europe.

Our Flow Heater is the first of its kind to incorporate a Smart Heating System (SHS) – an innovative technology for smart power adjustment. The built-in microprocessor fine-tunes the heating output to keep the aquarium at the desired temperature. This ensures the heater operates smoothly, preventing temperature fluctuations that could stress the aquatic life within. With the electronic thermostat, the LED display not only shows the set temperature but also the current water temperature. Electronic temperature sensors safeguard the aquarium against overheating and automatically turn off the device when there is no water flow. Positioned on the outlet hose of the external filter, this heater distributes heated water evenly throughout the tank. Since the heater is mounted externally, it frees up space inside the aquarium, allowing for more flexibility in interior design. This pioneering intelligent flow heater features a Smart Heating System that adjusts the heating power according to the tank size and surrounding conditions, optimizing energy efficiency. It also boasts a high-precision electronic thermostat with an accuracy of ± 0.9 °F [0.5 °C] within a range of 68 to 91 °F [20 to 33 °C]. You can easily set the temperature with just a single button – One Touch System. The LED display indicates both the programmed and current temperature readings. It includes three temperature sensors: two electronic and one thermal fuse. The heater automatically shuts off in the absence of water flow. Suitable for ⁵/₈ / ⁵⁵/₆₄ inch diameter hoses in both freshwater and marine aquariums. Included components are the heater, two sturdy mounting brackets, and clamping nuts. Proudly made in Europe.

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.

With the EHEIM precision heater, your fish will enjoy the perfect temperature in any aquarium. Diameter Ø 36 mm Height 270 mm Performance at 50 Hz 75 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. 100 liters For aquariums of about 60 liters Sometimes, the simplest ideas are the most effective. Take the aquarium heater, for example, designed as a rod. This heating rod is easily suspended in the water, where it does its job of heating. While the fundamental principle remains unchanged from decades past, significant advancements have been made. Today, the EHEIM adjustable heater represents a cutting-edge electronic thermal device featuring the latest technology. Its jacket, crafted from special laboratory glass, enhances the heating surface, acts as a heat shield, and guarantees optimal even heat distribution. Whether you're heating a 20-liter or a 1000-liter aquarium, you have 9 different sizes to choose from. **Advantages of the EHEIM thermostatic heaters:** - Accurate temperature adjustment from 18 up to 34 °C - Easy and safe recalibration (±2 °C) - Temperature control precision of ± 0.5 °C - Maintains heat at a consistent level - Heating function is indicated by a control lamp - Fully submersible (watertight) - Features automatic dry run shut-off (Thermo Safety Control) - The glass jacket increases the heating surface and ensures optimal even heat distribution - Convenient cable length of approximately 170 cm - Comes with a double suction cup holder - Available in 9 sizes for aquariums ranging from 20 to 1000 liters - Suitable for both fresh and saltwater Precision, user-friendliness, quality, and safety — all "Made in Germany." The EHEIM aquarium heater is an evolved version of the classic heating rod. The temperature can be accurately set between 18 and 34 °C and can be recalibrated if necessary (±2°). The temperature control maintains a precision of ± 0.5 °C, ensuring heat is kept constant. The operation of the heater is indicated by a control lamp. This rod is completely watertight, can be fully submerged, and includes an automatic dry run shut-off feature (Thermo Safety Control), making it suitable for both freshwater and marine environments. One of its standout innovations is the glass jacket: - It expands the heating surface, - Condenses the heat, ensuring optimal and even heat emission, and - Acts as a heat shield (safe to touch without harming your aquatic life). This jacket is made from a special laboratory glass developed for research applications, ensuring it is free from pollutants that could leach into the water. It is resistant to both chemical and biological substances, free from fissures and hairline cracks that could allow condensation to infiltrate, and able to withstand extreme temperature fluctuations that may occur during water changes.

With the EHEIM precision heater, your fish enjoy the perfect temperature – in any aquarium. Diameter Ø 36 mm Height 319 mm Performance at 50 Hz 100 Watt Max. temperature 34°C Sea water Yes Min. temperature 18°C Freshwater Yes Packing dimensions (Width) 6.5 cm Packing dimensions (Height) 42.5 cm Packing dimensions (Depth) 5 cm For aquariums up to approx. 150 Liter For aquariums of about 100 Liters Simple ideas are often the most effective. Take the aquarium heater, for instance, designed as a rod. This heating rod is easily suspended in the water to provide warmth. While the concept has remained consistent for decades, significant advancements have been made. Today, the EHEIM adjustable heater represents a state-of-the-art electronic thermal device featuring the latest technologies. Its casing, crafted from specialized laboratory glass, not only enhances the heating surface but also acts as a heat shield, ensuring uniform heat distribution. Whether you're heating a 20 or a 1000-liter aquarium, you can choose from 9 different sizes. Advantages of the EHEIM thermostatic heaters Accurate temperature adjustment from 18 to 34 °C Easy and safe recalibration (±2 °C) Temperature control accuracy of ± 0,5 °C Maintains constant heat levels Heating function indicated by a control lamp Fully submersible (watertight) Automatic dry run shut-off (Thermo Safety Control) Glass jacket enhances heating surface and ensures even heat distribution Convenient cable length of approximately 170 cm Includes double suction cup holder Available in 9 sizes for aquariums ranging from 20 to 1000 litres Suitable for both freshwater and marine environments Precision, user-friendliness, quality, and safety "Made in Germany" The EHEIM aquarium heater is an enhancement of the renowned heating rod. The temperature can be accurately set between 18 and 34 °C and recalibrated if necessary (±2°). Its temperature control accuracy is ± 0,5 °C, ensuring consistent heat retention. The heating functionality is easily identifiable via a control lamp. The rod is completely waterproof, fully submersible, features an automatic dry run shut-off (Thermo Safety Control), and is compatible with both freshwater and saltwater aquariums. A key innovation is the glass jacket: It expands the heating surface, Concentrates heat for optimal even heat emission, and Acts as a heat shield (safe to touch for aquatic life). The jacket is crafted from specialized laboratory glass, developed for research applications. This means it is free from contaminants that might leach into the water. It is also resistant to both chemical and biological agents, ensuring no cracks or fissures through which condensation could enter. Even extreme temperature variations that may occur during water changes will not affect this durable glass.

With the EHEIM precision heater, your fish will enjoy the perfect temperature in any aquarium. Diameter Ø 36 mm Height 345 mm Performance at 50 Hz 150 Watt Max. temperature 34°C Sea water Yes Min. temperature 18°C Freshwater Yes Packing dimensions (Width) 6.5 cm Packing dimensions (Height) 42.5 cm Packing dimensions (Depth) 5 cm For aquariums up to approx. 300 Liter For aquariums of about 200 Liters Sometimes the simplest ideas turn out to be the most effective. Take the aquarium heater, for instance. This heating rod simply hangs in the water to warm it up. While the basic principle has remained unchanged for decades, significant advancements have been made in recent years. Today, the EHEIM adjustable heater stands as a highly modern electronic heating device equipped with top-notch technology. Its jacket, crafted from specialized laboratory glass, increases the heating surface, acts as a heat shield, and guarantees optimal heat distribution. No matter if you need to heat a 20 or a 1000-liter aquarium, you can choose from nine different sizes. Advantages of the EHEIM thermostatic heaters Accurate temperature adjustment from 18 up to 34 °C Easy and safe recalibration (±2 °C) Temperature control accuracy of ± 0.5 °C Maintains a constant heat level Heating function indicated by a control lamp Fully submersible (watertight) Features automatic dry run shut-off (Thermo Safety Control) Glass jacket enhances the heating surface and ensures optimal heat emission Convenient cable length of approximately 170 cm Includes double suction cup holder Available in nine sizes for aquariums ranging from 20 to 1000 liters Compatible with both fresh and marine water Precision, user-friendliness, quality, and safety “Made in Germany” The EHEIM aquarium heater is an evolution of the classic heating rod. You can set the temperature precisely from 18 to 34 °C and recalibrate it if necessary (±2°). The temperature control accuracy is ± 0.5 °C, ensuring that heat remains consistent. A control lamp indicates when the heating function is active. The rod is completely watertight, can be fully submerged, and includes an automatic dry run shut-off (Thermo Safety Control), making it suitable for both freshwater and saltwater environments. One of the most significant innovations is the glass jacket: It enhances the heating surface, Concentrates the heat, ensuring optimal even heat distribution, and Acts as a heat shield (safe for your aquatic life). This jacket is made from specialized laboratory glass designed for research, making it free from harmful pollutants that could leach into the water. It is resistant to both chemical and biological substances, with no fissures or micro-cracks that could allow condensation to seep in. Even extreme temperature fluctuations that may occur during water changes will not affect this glass.

With the EHEIM precision heater, your fish will experience the ideal temperature in every aquarium. Diameter Ø 36 mm Height 406 mm Performance at 50 Hz 200 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. 400 Liters For aquariums of about 300 Liters Simple ideas often prove to be the most effective. Take the aquarium heater designed as a rod, for instance. This heating rod is effortlessly submerged in the water to provide warmth. While the concept remains unchanged from decades ago, significant advancements have been made since then. Today, the EHEIM adjustable heater is an exceptionally modern electronic heating device featuring top-notch technology. Its jacket, crafted from specialized laboratory glass, enhances the heating surface, acts as a heat shield, and guarantees optimal uniform heat distribution. Whether you're heating a 20 or a 1000-liter aquarium, you have 9 sizes to choose from. Advantages of the EHEIM thermostatic heaters Accurate temperature adjustment from 18 to 34 °C Easy and safe recalibration (±2 °C) Temperature control accuracy of ± 0.5 °C Maintains a consistent heat level Heating function indicated by a control lamp Fully submersible (waterproof) Automatic dry run shut-off (Thermo Safety Control) Glass jacket increases heating surface and ensures optimal even heat emission Convenient cable length of approximately 170 cm Includes double suction cup holder Available in 9 sizes for aquariums ranging from 20 to 1000 liters Suitable for both fresh and marine water Precision, user-friendliness, quality, and safety “Made in Germany” The EHEIM aquarium heater is an evolution of the renowned heating rod. You can precisely set the temperature between 18 and 34 °C, and if necessary, recalibrate it (±2°). The accuracy of temperature control is ± 0.5 °C, ensuring that the heat remains stable. The operation of the heating function is shown by a control lamp. 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 fresh and saltwater aquariums. One of the most significant advancements is the glass jacket: It enhances the heating surface, Condenses heat to ensure optimal even heat emission, and Acts as a heat shield (safe for your aquatic life). The jacket is made from specialized laboratory glass, designed for research applications. This means it is free from harmful pollutants that could leach into the water. Additionally, it is resistant to chemical and biological substances, has no fissures or micro-cracks that could allow condensation ingress, and can withstand extreme temperature fluctuations during water changes without damage.

With the EHEIM precision heater, your fish will enjoy the perfect temperature in any aquarium. Diameter Ø 36 mm Height 452 mm Performance at 50 Hz 250 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. 600 Liter For aquariums of about 400 Liters Simple ideas often turn out to be the most effective. Take, for instance, the aquarium heater designed as a rod. This heating rod is easily suspended in the water to warm it. While the concept has remained unchanged for decades, significant advancements have been made over time. Today, the EHEIM adjustable heater represents a state-of-the-art electronic heating device that utilizes the latest technology. Its jacket, crafted from specialized laboratory glass, enhances the heating surface, acts as a heat shield, and guarantees optimal, uniform heat distribution. Whether you need to heat a 20-liter or a 1000-liter aquarium, you can choose from 9 available sizes. Advantages of the EHEIM thermostatic heaters Accurate temperature adjustment from 18 to 34 °C Easy and secure recalibration (±2 °C) Temperature control precision ± 0.5 °C Heat maintained at a consistent level Heating function indicated by a control lamp Completely submersible (watertight) Features automatic dry run shut-off (Thermo Safety Control) A glass jacket enhances the heating surface and guarantees optimal, even heat distribution Convenient cable length of approximately 170 cm Includes double suction cup holder 9 sizes available for aquariums ranging from 20 to 1000 liters Suitable for both freshwater and marine environments Precision, user-friendliness, quality, and safety “Made in Germany” The EHEIM aquarium heater is an advancement of the iconic heating rod. The temperature can be set with precision between 18 and 34 °C and can be recalibrated if necessary (±2°). It maintains a constant temperature level, and its heating function is signaled by a control lamp. The rod is fully watertight, can be completely submerged, and includes an automatic dry run shut-off feature (Thermo Safety Control), making it suitable for both freshwater and saltwater aquariums. One of the most significant innovations is the glass jacket: It expands the heating surface, Concentrates the heat to ensure optimal, even heat distribution, and Acts as a heat shield (safe for your aquatic life). This jacket is made from specialized laboratory glass, designed for research applications. Therefore, it is free from harmful substances that could leach into the water. It is resistant to both chemical and biological agents, free from fissures or fine cracks that could allow moisture to seep in. Even extreme temperature fluctuations that may occur during water changes will not damage this glass.

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.

The electronic control system ensures exceptional temperature accuracy, while the highly efficient heating element provides uniform heat distribution. With a preset comfortable temperature, it couldn't be easier: the EHEIM aquarium heater thermopreset sets the ideal temperature for your aquarium's residents at a constant 25 degrees Celsius. This temperature is optimal for housing the most common aquarium species. The electronic control guarantees remarkable precision in temperature accuracy, and the efficient heating element ensures that heat is evenly distributed. The EHEIM thermopreset bar heater distinguishes itself from the EHEIM thermocontrol with its added plastic protection, which enhances mechanical stability. True to EHEIM's reputation, both heaters come equipped with an LED indicator for monitoring the heating function and include dry-running protection. The new heater is offered in four different power classes, indicated by the numbers in the product name: thermopreset50 (50W), thermopreset100 (100W), thermopreset150 (150W), and thermopreset200 (200W). All variants share a sleek design—measuring only 2.8 cm in diameter and 17 to 25 cm in length, making it nearly invisible even in smaller tanks. Benefits of the EHEIM thermopreset heater High user-friendliness with preset temperature Short lengths make it suitable for small tanks Narrow design makes it less visible in the aquarium Plastic protection enhances mechanical stability Exceptional temperature accuracy due to electronic control Even heat distribution thanks to the efficient heating element Includes dry-running protection Control lamp indicates the heating function Secure mounting with included suction cups Compatible with both freshwater and marine environments 3-year warranty Diameter Ø: 28.2 mm Height: 168.5 mm Performance at 50 Hz: 50 Watt Max. temperature: 25°C Sea water: Yes Freshwater: Yes Packing: 1 Piece Packing dimensions (Width): 8.1 cm Packing dimensions (Height): 24.5 cm Packing dimensions (Depth): 4.2 cm Suitable for aquariums up to approx.: 60 Liters Suitable for aquariums of about: 25 Liters Manufacturer guarantee: 3 Year(s)

The electronic control system ensures exceptional temperature accuracy, while the highly efficient heating element provides uniform heat distribution. With a pre-set comfortable temperature, using the EHEIM aquarium heater thermopreset is incredibly straightforward: the ideal temperature for your aquarium's inhabitants is already set. Your tank will maintain a steady 25 degrees Celsius, which is perfect for most common aquarium species. The electronic control system guarantees outstanding precision in temperature management, and the efficient heating element promotes even heat distribution. The EHEIM thermopreset bar heater distinguishes itself from the EHEIM thermocontrol by featuring an added plastic protection that enhances mechanical stability. True to EHEIM's reputation, both heaters come equipped with an LED light to monitor the heating function and a dry-running protection feature. This new heater is offered in four distinct power classes, denoted by the numbers in the product name: thermopreset50 (50W), thermopreset100 (100W), thermopreset150 (150W), and thermopreset200 (200W). A common trait across all models is their slim profile – with a diameter of just 2.8 cm and a length ranging from 17 to 25 cm, the heater remains inconspicuous even in smaller tanks. Benefits of the EHEIM thermopreset heater User-friendly design with preset temperature Short lengths make it suitable for small tanks Compact and less visible in the aquarium Plastic protection for enhanced mechanical stability High temperature accuracy due to electronic control Even heat distribution from the efficient heating element Equipped with dry-running protection Control lamp to indicate heating function Securely mounts with included suction cups Suitable for both freshwater and marine environments Three-year warranty Diameter Ø: 28.2 mm Height: 183.5 mm Performance at 50 Hz: 100 Watt Max. temperature: 25°C Sea water: Yes Freshwater: Yes Packing: 1 Part(s) Packing dimensions (Width): 8.1 cm Packing dimensions (Height): 24.5 cm Packing dimensions (Depth): 4.2 cm For aquariums up to approx.: 150 Liters For aquariums of about: 100 Liters Manufacturer guarantee: 3 Year(s)

The electronic control system provides exceptional temperature accuracy, while the highly efficient heating element guarantees uniform heat distribution. With the EHEIM aquarium heater thermopreset, the ideal temperature for your aquarium's residents is already set. Your tank maintains a steady 25 degrees Celsius, which is perfect for most common aquarium species. This precision is ensured by advanced electronic control, complemented by a heating element that distributes heat evenly. The EHEIM thermopreset bar heater stands out from the EHEIM thermocontrol due to its added plastic protection, which enhances mechanical stability. True to EHEIM's reputation, both heaters feature an LED indicator for monitoring the heating function and include dry-running protection. The new heater comes in four different wattage options, indicated in the product name: thermopreset50 (50W), thermopreset100 (100W), thermopreset150 (150W), and thermopreset200 (200W). All variants share a sleek design – with a diameter of just 2.8 cm and lengths ranging from 17 to 25 cm, the heater remains discreet even in smaller tanks. Advantages of the EHEIM thermopreset heater include: User-friendly with preset temperature settings Suitable for smaller tanks due to short lengths Narrow design minimizes visibility in the aquarium Plastic protection provides enhanced mechanical stability High temperature accuracy through electronic controls Efficient heat distribution from the advanced heating element Includes dry-running protection Control lamp for monitoring heating status Secure attachment with included suction cups Compatible with both freshwater and marine environments The heater comes with a 3-year warranty. Specifications: Diameter: Ø 28.2 mm Height: 223.5 mm Power at 50 Hz: 150 Watt Maximum temperature: 25°C Saltwater compatible: Yes Freshwater compatible: Yes Packing: 1 unit Packing dimensions (Width): 8.1 cm Packing dimensions (Height): 32 cm Packing dimensions (Depth): 4.2 cm For aquariums up to approximately: 300 liters For aquariums of about: 200 liters Manufacturer warranty: 3 years

The electronic control system ensures exceptional temperature accuracy, while the highly efficient heating element provides uniform heat distribution. With a preset comfortable temperature, it couldn’t be easier: the EHEIM aquarium heater thermopreset maintains a steady 25 degrees Celsius for your aquatic pets. This temperature is ideal for most common aquarium inhabitants. The electronic control offers remarkable precision in temperature accuracy, and the effective heating element guarantees even heat distribution. The EHEIM thermopreset bar heater differs from the EHEIM thermocontrol due to its added plastic protection, which enhances mechanical stability. As is typical of EHEIM, both heaters feature an LED indicator to monitor the heating function and include dry-running protection. The new heater comes in four distinct performance classes, indicated by the number in the product name: thermopreset50 (50W), thermopreset100 (100W), thermopreset150 (150W), and thermopreset200 (200W). All variants share a slim design – with a diameter of just 2.8 cm and a length ranging from 17 to 25 cm, making the heater nearly invisible even in smaller tanks. Benefits of the EHEIM thermopreset heater User-friendly with preset temperature Compact size allows use in small tanks Streamlined design is less obtrusive in the aquarium Plastic protection ensures robust mechanical stability High temperature accuracy thanks to electronic control Even heat distribution from the efficient heating element Includes dry-running protection Control lamp to indicate heating function Secure mounting with included suction cups Suitable for both freshwater and marine environments 3-year warranty Diameter Ø: 28.2 mm Height: 253.5 mm Performance at 50 Hz: 200 Watt Max. temperature: 25°C Sea water: Yes Freshwater: Yes Packing: 1 Part(s) Packing dimensions (Width): 8.1 cm Packing dimensions (Height): 32 cm Packing dimensions (Depth): 4.2 cm For aquariums up to approx.: 400 Liters For aquariums of about.: 300 Liters Manufacturer guarantee: 3 Year(s)

With the EHEIM thermocontrol+ e, you're getting the aquarium heater of the future, crafted with intelligence and innovative design. This is our first adjustable heater that allows for digital control through WLAN. You can easily set the exact temperature between 18 to 32 °C using your smartphone, tablet, or PC/MAC. The chosen temperature is measured electronically and maintained consistently. Should the temperature fluctuate by ± 2 °C, you will receive an immediate notification via email. It also offers automatic synchronization with filter activity or lighting, enabling you to connect wirelessly with the EHEIM professionel 5e Filter or LEDcontrol+. The design of the thermocontrol+ e follows the blueprint of our trusted thermocontrol heaters. With a unique laboratory glass cover, impeccable finish, high-quality materials, and unparalleled reliability, this heater is truly top-of-the-line. Each unit comes with a 3-year warranty and is available in 4 sizes, catering to aquariums ranging from 200 to 1000 liters. **Benefits of the EHEIM thermocontrol+ e** - Electronic aquarium heater with built-in WLAN functionality and digital control via smartphone, tablet, or PC/MAC. - Exact temperature settings from 18 to 32 °C. - Control precision of ± 0.5 °C. - Indicator lights display heating function and operational status. - Notifications sent to a registered email address if the temperature deviates by ± 2 °C. - Smart integration with other electronically controlled devices from the EHEIM.digital family (such as temperature adjustments, water flow changes, or nighttime temperature reductions). - Optional adjustments with an external thermometer (expert mode). - Waterproof (IPX8) — for optimal Wi-Fi signal, submerge the heater only up to the indicated mark. - Dry-run protection (Thermo Safety Control). - Convenient cable length of approximately 170 cm. - Includes double suction holder. - Available in 4 sizes suitable for aquariums from 200 to 1000 liters. - Compatible with both freshwater and marine environments. - Exceptional safety and reliability backed by a 3-year guarantee. The smart aquarium heater comes equipped with integrated WLAN functionality and digital control options via smartphone, tablet, or PC/MAC. **Adjustment and Control** The EHEIM thermocontrol+ e aquarium heater represents a significant advancement over the former thermocontrol e heater. This model is not adjusted manually; instead, it is programmed and monitored wirelessly through WLAN via smartphone, tablet, or PC/MAC. You can set the temperature accurately from 18 to 32 °C. If the chosen temperature varies by +/-2 degrees, you will receive an email alert, provided you have set up a notification address. **Synchronization with Other Devices** A standout feature of the thermocontrol+ e is its ability to sync with other devices in the Eheim Digital Family, such as the EHEIM professionel 5e filter or the LED control unit. This allows you to program the heater to automatically adjust the temperature when, for example, the filter flow increases or decreases or when the LED lighting is turned off or on. For instance, if the filter flow is boosted at night and the lighting is switched off, the set temperature will adjust automatically: 25 °C during the day and 23 °C at night. (Please note: the heater does not cool the water as it lacks integrated cooling.) **WLAN Connection** The thermocontrol+ e is waterproof and completely submersible. For the best WLAN connection, ensure the heater is only submerged up to the indicated "water level" mark. For your device's security, each EHEIM thermocontrol+ e is encrypted from the factory (the password can be changed). Once you have set your desired temperature, the Wi-Fi network can be turned off. Diameter Ø: 32 mm Height: 327 mm Performance at 50 Hz: 150 Watt Max. temperature: 32 °C Sea water: Yes Min. temperature: 18 °C Freshwater: Yes Packing: 6 Part(s) WiFi: Yes For aquariums up to approx.: 300 Liters For aquariums of about: 200 Liters Manufacturer guarantee: 3 Year(s)