Hydor Theo Shatterproof Aquarium Heater

Original price was: $22.99.Current price is: $16.09.

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A fully submersible, shatter-proof glass aquarium heater.
This heater is shock resistant thanks to the patented PTC heating element and the shatterproof glass tube.
The supplied suction cups allow you to position the heater anywhere in your aquarium. You can place it in the fish tank vertically, horizontally and fully submerged.
If heater senses abnormal functioning, the patented PTC heating system guarantees completely safe operation in case of dry running.
This universal aquarium heater may be used in freshwater or marine water fish tanks.

The Hydor Theo Shatterproof Aquarium Heater is designed with exclusive technology and high-quality components for longevity. This heater has all the features needed to safely and precisely maintain the water temperature in your aquarium. This aquarium heater is submersible, anti-thermal shock, highly resistant and features a graduated scale for precise temperature regulation. It also features self-control limiting technology, so if it senses abnormal functioning, the patented PTC heating system guarantees safe operation in case of dry running. Plus, you can position this heater horizontally or vertically!

Specifications

Item Number	102438
Aquarium Type	Freshwater, Saltwater
Heater Type	Under Tank Heater
Bulb Type	N/A
Fish Type	Marine Fish, Marine Invertebrate, Tropical Freshwater
Material	Glass
Reptile Type	Painted Turtle, Aquatic Turtle, Map Turtle, Red-Eared Slider Turtle, African Dwarf Frog, Frog, Newt, Salamander, Axolotl

Precautions

HAZARDS TO HUMANS AND ANIMALS: Unplug all electrical appliances before making water changes or performing any maintenance. Use this heater indoors only. Check voltage to verify the one that’s reported on the heater label corresponds to your electrical supply. Do no use if either the cable or the heater are damaged. Do not plug in when out of the water. Keep water at or above “Minimum Water Level” line.

How should I install my Theo Heater – Aquarium Heater?

Apply the supporting suction cups to the heater and place the product thus assembled inside the aquarium in an area with a good recirculation flow, so as to guarantee maximum efficiency, an even distribution of heat and greater accuracy.

How far should I submerge the Theo Heater – Aquarium Heater?

You can position the heater anywhere you like – just make sure the product is fully submerged or that the water level is above the point labelled “WATER LEVEL – TAUCHTIEFE – NIVEAU D’EAU – LIVELLO DELL’ACQUA”, visible just below the head of the heater.

Does the Theo Heater – Aquarium Heater stay on all the time, or does it switch off automatically?

The heater has a light that comes on only when the water temperature is below the desired level and the heater comes on. As soon as the water reaches the set temperature, the heater maintains that temperature automatically, and the light goes off.

What precautions do I need to take?

Before carrying out any maintenance, or before putting your hands into the aquarium, remove the power supply from all the electrical devices under water.
Check that the various components, such as the glass test tube, cable and plug, are not damaged. If they are damaged in any way, do not connect them to the electricity network.
Check that the voltage indicated on the label of the device corresponds to the mains voltage.
Do not plug in the device until it is under water.

If the water is still much colder than the desired temperature after the heater has been installed for 24 hours or more, what can I do?

Check that you have set the temperature correctly.
Check that the device is plugged in and that the electricity is working.
Check that the heater is submerged below the line indicated with the words WATER LEVEL.
Check that there is good water recirculation in the area the heater is placed in (if necessary point the jet of the pump towards it).
Check that the difference between the temperature set and the temperature of the room the aquarium is located in is within the limits indicated in the table in the instructions.
Check that the capacity of the tank is within the limits indicated on the label on the heater.
Check there is no limescale or foreign bodies on the glass. If this is the case, pull out the plug and remove the limescale from the heater.
Check the quality and precision of the thermometer: some thermometers on the market do not give very accurate temperature readings.