Fluval T100 Aquarium Heater
The T-Series submersible heaters combine electronic accuracy, reliable monitoring, and multiple safety features to easily maintain desired aquarium water temperatures. The 360° indicator light ring displays heat mode clearly from any angle, while a convenient large grip dial allows users to adjust the water temperature with ease. In absence of water, the T-Heater automatically cuts power to prevent overheating, while a heater guard provides additional peace-of-mind protection.
Technical Specifications
| Feature | Specification |
|---|---|
| Heating Capacity | Up to 100 gallons (378 liters) |
| Operating Voltage | 12V AC |
| Temperature Range | 65°F to 85°F (18°C to 29°C) |
| Power Consumption | 120W |
| Heater Type | Submersible |
| Safety Features | Automatic power cut in dry conditions, heater guard |
FAQ
Can the heater be used in a freshwater aquarium?
Yes, the Fluval T100 is designed for use in freshwater aquariums and maintains stable water temperatures within the recommended range.
Does the heater have a built-in thermostat?
Yes, the heater features an electronic thermostat that ensures precise temperature control and automatically adjusts to maintain the set temperature.
What happens if the heater is left in an empty tank?
The heater automatically cuts off power when there is no water present to prevent overheating and potential damage.


Sebastian Wright –
The heater works reliably and keeps my 55-gallon tank at a steady temperature. The large dial is easy to adjust, and the light ring is very visible even in low light. I appreciate the safety features, especially the automatic shut-off when the tank is empty.
Warren Howard –
It maintains the temperature well in my planted tank. The 360° light helps me monitor it from any angle. A bit heavy to handle, but the grip is comfortable. No issues so far with overheating or malfunction.
Ryan MacLeod –
I’ve used this heater for over a year and it’s still performing well. The temperature control is accurate, and the safety features give me peace of mind. Easy to install and maintain.