Fluval E Series Heaters

The most technologically advanced submersible aquarium heaters available today. Fluval E Series heaters employ an advanced digital microprocessor to continuously monitor and display aquarium water temperature. Internal thermal sensor continuously samples aquarium water temperature for greater accuracy and reliability. Innovative color-coded temperature alert feature changes LCD screen color if aquarium water temperature varies from the pre-set temperature (Green = Safe Zone, Red = High Temperature Alert, Blue = Low Temperature Alert). Easy-to-use adjustment lever allows precision temperature settings in 0.5° increments and integrated heater guard offers advanced protection for fish and invertebrates. For fresh and saltwater aquariums.

Features:

• Electronic Technology: Electronic monitoring system, thermal sensor, and LCD temperature display
• Precise Temperature Setting: With the easy to use adjustment lever, the temperature can be precisely set in 0.5° increments.
• Advanced Safety: The integrated fish guard offers advanced protection. Fish and invertebrates cannot come into direct contact with the heater core. The heater is protected against shocks from large fish.
• Mounting Bracket: The heater easily clips on or off of the slim line mounting bracket or can be vertically adjusted for precise placement. The included adapter provides the option of side glass mounting when traditional rear glass mounting is not possible.

Downloadable Fluval E Series Heater Instructions PDF.
(Requires Adobe Acrobat Reader 4.0 or later - get it here for free)

Please click on "More Information" for directions for use.

The aquarium heater must be positioned to allow the free circulation of water around the unit. Water must at ALL times cover the heater at least up to the MIN water level indicated. Always maintain the water level in the aquarium to compensate for water loss due to evaporation. Generally, this heater should be placed at the rear of the aquarium, close to a source of water movement to ensure even and thorough distribution of warmed water.

1. Position the heater in the aquarium and press suction cups firmly against glass to adhere to the aquarium wall. If rear glass mounting is not possible, use the side glass mounting adapter. Suction cups will need to be removed from the heater bracket and placed onto the adapter. The heater bracket then clips onto the adapter. Important: Place the heater where the unit is unobstructed and where there is a free flow of water to ensure even heat dispersion. Make sure that the heater is positioned so that the aquarium water level is never below the MIN indicator found on the guard of the heater. If necessary, you can simply adjust the heater height by sliding it along the bracket by squeezing the two release arms on the side of the heater guard, be sure there are no rocks, decorations, or gravel obstructions touching the heater to create uneven heat in the glass tube and weaken it.
2. Allow heater to acclimatize in the aquarium water temperature for 20 minutes before plugging it into the electrical outlet. Be sure to arrange a drip loop for the heater cord and any other electrical item that is placed in or on the aquarium.
3. After 20 minutes, plug in the heater and set the degree scale, if necessary, and the aquarium water temperature. Once set, there is no need for readjustment.
4. At each Power-on, the E Heater goes through an initial self-test procedure during which it carries out a self-diagnosis to check internal circuitry and sensors operation, followed by a period to verify the surrounding conditions. After the self-diagnosis is completed, the E Heater starts its standard operation. During the self-diagnosis test, the LCD screen will display the water temperature.

Warning: The heater must never be operated outside the aquarium. If the water level falls below the minimum water level MIN, the thermostat can no longer "read" the water temperature and therefore can no longer control the heating correctly. If it has to be taken out of the water or when transferring or changing the water, disconnect the heater from the power source and wait at least 30 minutes to allow it to cool down.

How to set °C or °F Degree Scale
The heater is factory set on the °C degree scale for 50 Hz markets and °F degree scale for 60 Hz markets. In case you need to change the degree scale, hold the SET lever in the full left (-) position for at least 5 seconds. When the new degree scale is displayed, you may release the lever. After a few seconds, the display will automatically return to display the water temperature.

How to set the aquarium temperature
The heater is factory set at 25°C / 77°F. If a different water temperature is desired, use the "Easy SET" lever on the top of the heater. Push the lever to the right or left and release; the LCD screen will start to flash, showing the temperature set. Each subsequent push of the lever to the right or left will increase or decrease the set temperature by 0.5 degree intervals (°C or °F). Once the adjustment has been made, release the lever. After a few seconds, the display will stop flashing and will return to the normal working condition displaying the aquarium water temperature.

Intelligent Error Messages
The advanced E Heater microprocessor detects abnormal or non-optimal usage conditions.

Maintenance
Caution: Unplug all appliances in the aquarium before placing hands the water. Unplug the heater and allow it to cool for at least 30 minutes before taking it out of the water.

Clean the heater guard and glass tube regularly to remove encrustations and deposits that could impair the heating performance and the sensitivity of the thermostat.

1. Remove the heater from the suction cup brackets by squeezing the two release arms on the side of the heater guard and separating it from the bracket.
2. In order to reach the internal glass tube, remove the heater guard as explained in the sections "How to remove the heater guard from the unit."
3. Clean the heater glass tube regularly to remove deposits that could impair heater performance. Deposits on heater can be removed by soaking the heater tube in vinegar, then rinse with fresh water before repositioning in aquarium.
4. Clean the heater guard under a stream of water, assuring that all openings are free from dirt and debris. If required, use a soft cleaning brush (item #902370).

How to remove the Heater Guard from the Unit
Once the heater has been removed from the aquarium and suction cup bracket, you can remove the heater guard and have access to the internal glass tube. Using a flathead screwdriver, slightly lift the Secure-Lock Tab at the back of the heater cap to free and remove the heater guard.

General Information
Fluval E Series Heater with VueTech Technology
Immediate and clear feedback for all the well-being of your aquarium inhabitants!
The E Series Heater employs an advanced digital microprocessor monitoring system with dual temperature sensors, which continuously monitor and display the aquarium water temperature. Also, it references the set temperature in relation to the actual water temperature. During normal operation, when water temperature is within ±2 ºF of the set temperature, the backlight of the LCD screen is green. If water temperature exceeds the set temperature by 2 ºF, the LCD's backlight will turn red. If water temperature is lower than the set temperature by more than 2 ºF, the LCD's backlight will turn blue. If ever the temperature goes outside ±5.5 ºF of the set temperature, the display will provide an alert by flashing.

Thermal Sensor
Temperature Sensing Technology as Precise as an External Probe!
The internal Thermal Sensor samples the actual water temperature directly through the glass of the heater tube rather than the air temperature within the tube, as is the case with standard bi-metallic strip thermostats. Since the Thermal Sensor actually reads the true water temperature, it is more accurate and reliable than conventional bi-metallic heaters

Reliable and Precise Electronic Components
Advanced Electronic Circuitry - No Moving Parts to Wear Out!
Since the Fluval E Series Heater has no bi-metallic points, there are no moving parts to arc, corrode, or wear. The thermostatic control of the heater is separated from the water thermal sensor, different from conventional bi-metallic heaters, where the sensor is directly built into the thermostat. It is therefore less affected by extraneous factors. The heater works uninterrupted until the proper temperature is reached for fast heating results. Once attaining the desired heat level, the heater shuts off. It maintains the specified level within a more accurate temperature band.

Fluval E Series Heaters are simply the most technologically advanced submersible aquarium heaters available today. The E Series aquarium heaters feature VueTech technology. Its LCD display delivers peace of mind by continuously showing real time water temperatures. During normal operation, the temperature display changes color if the aquarium water temperature varies from the pre-set temperature. Should external heat sources or other equipment cause the aquarium water temperature to rise or fall excessively, the colored screen will flash, indicating a potential risk.