Boyu · Glass
DR Digital Heater
- Heater
- 50–300 W
Everyday tropical tanks where you want to see the temperature without a separate thermometer.
6 models
SunSun · Glass
SunSun AR Series Aquarium Heater
A broad range of adjustable heaters from 50 to 1,000 W: compact AR-2 units and flat AR-3 heaters for bigger tanks and sumps. Rated from 20 to 900 litres.
Updated
50–1,000 W10 models
Will it suit my tank?
litres
Best for
Any size tank, including sumps that need a lot of heat.
What stands out
- 50 to 1,000 W
- Rated for 20 to 900 litres
- 20 to 35 °C
- Flat body on AR-3 models
Models and specs
| Model | Heater | Tank size | Length | Temperature range |
|---|---|---|---|---|
| AR-205 | 50 W | 20–30 L | 11.5 cm | 20 to 35 °C |
| AR-210 | 100 W | 30–50 L | 11.5 cm | 20 to 35 °C |
| AR-220 | 200 W | 50–100 L | 11.5 cm | 20 to 35 °C |
| AR-305 | 50 W | 30–40 L | 22 cm | 20 to 35 °C |
| AR-310 | 100 W | 40–60 L | 22 cm | 20 to 35 °C |
| AR-320 | 200 W | 60–150 L | 22 cm | 20 to 35 °C |
| AR-330 | 300 W | 150–300 L | 22 cm | 20 to 35 °C |
| AR-350 | 500 W | 300–500 L | 27 cm | 20 to 35 °C |
| AR-380 | 800 W | 500–700 L | 27 cm | 20 to 35 °C |
| AR-3100 | 1,000 W | 700–900 L | 27 cm | 20 to 35 °C |
Figures from the maker's published specifications. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
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Frequently asked questions
Quick answers about the SunSun AR Series Aquarium Heater, drawn from its specs.
What size tank is the SunSun AR Series Aquarium Heater for?
The maker rates it by model: AR-205 up to 30 L, AR-210 up to 50 L, AR-220 up to 100 L, AR-305 up to 40 L, AR-310 up to 60 L, AR-320 up to 150 L, AR-330 up to 300 L, AR-350 up to 500 L, AR-380 up to 700 L, AR-3100 up to 900 L.
What wattage is the SunSun AR Series Aquarium Heater?
50 to 1,000 W across the range. As a rule of thumb that covers roughly 33–1,000 L in a normally heated room, at about 1 W per litre.
Who is the SunSun AR Series Aquarium Heater best for?
Any size tank, including sumps that need a lot of heat.
What are the alternatives to the SunSun AR Series Aquarium Heater?
Other heaters worth comparing: Boyu DR Digital Heater, Boyu DR-9 Series Heater, Boyu GR Glass Heater. Add any of them to the compare table to see the specs side by side.