NEWA Therm Preset 25 Degree C Aquarium Heater 50W
NEWA Therm Eco Preset 25C is a range of fully submersible automatic aquarium heaters designed for use in indoor tropical and marine tanks. These heaters are small, compact, and pre-set to 25°C. Available in 4 models, they deliver high performance with low power consumption, suitable for aquariums ranging from 20 to 300 litres. Strong support clips and suction cups are included for secure placement.
Product Specifications
| Feature | Detail |
|---|---|
| Heater Type | Submersible, automatic |
| Temperature Setting | 25°C (pre-set) |
| Power | 50W |
| Compatible Tank Size | 20 to 300 litres |
| Includes | Support clips, suction cups |
FAQ
Can this heater be used in marine tanks?
Yes, this heater is suitable for both tropical and marine tanks.
Is the temperature adjustable?
No, the heater is pre-set to 25°C and cannot be adjusted.
How long does it take to reach the set temperature?
Please contact customer service

Dylan Skinner –
The heater works reliably and maintains a steady 25°C even in a 150-litre tank. Easy to install with the suction cups and clips. No temperature fluctuations after setup. Good value for the size and performance.
Piers Mackay –
Stable performance in my 200-litre marine tank. The heater stays at 25°C consistently. Suction cups hold well, though I had to adjust the clip position slightly for better stability.
Sean Lewis –
Perfect for maintaining tropical water temperature. Simple to use, no complicated settings. Works well in a 300-litre tank. No issues with power consumption or overheating.