Dophin · Glass
AH-1006 Glass Heater
- Heater
- 25–500 W
- Tank size
- up to 500 L
A tropical tank where you want a cheap heater with a visible scale.

Boyu · Glass
A glass heater with a separate controller box showing the temperature on an LED display. Same concept as the titanium TR, in a cheaper glass tube.
Updated
Medium tanks where you want an easy-to-read set point on the outside of the tank.
| Model | Heater |
|---|---|
| GR-100 | 100 W |
| GR-150 | 150 W |
| GR-200 | 200 W |
| GR-250 | 250 W |
| GR-300 | 300 W |
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.
Dophin · Glass
A tropical tank where you want a cheap heater with a visible scale.
Dophin · Glass
A budget heater for a tropical planted tank, sized to your volume.
Eheim · Glass
Almost any planted tank, from nano to very large, where you want a proven heater you can set and forget.
Juwel · Glass
Juwel aquarium owners replacing or upgrading the heater inside their Bioflow filter.
Quick answers about the Boyu GR Glass Heater, drawn from its specs.
100 to 300 W across the range. As a rule of thumb that covers roughly 67–300 L in a normally heated room, at about 1 W per litre.
Medium tanks where you want an easy-to-read set point on the outside of the tank.
Other heaters worth comparing: Dophin AH-1006 Glass Heater, Dophin AH-1008 Glass Heater, Eheim ThermoControl. Add any of them to the compare table to see the specs side by side.
5 options: GR-100, GR-150, GR-200, GR-250, GR-300.