Oase Indoor Aquatics Heatup Adjustable Heater
The Oase HeatUp Adjustable Heater provides precise, reliable temperature control for freshwater and marine aquariums from 10 to 106 gallons. Available in seven wattages (25W to 400W), this high-quality heater features adjustable temperature settings and durable quartz glass construction to maintain optimal conditions for your aquatic life.
Key Features:
- Accurate temperature adjustments from 66°F to 90°F with easy-to-read temperature scale
- Secondary control knob allows precise readjustment within +/- 2°F for fine-tuning
- Bi-metal technology monitors and controls temperature levels with automated heating
- Thermal shutoff switch provides added protection against overheating
- High-quality double insulated quartz glass withstands greater temperature fluctuations than standard glass
- Control light indicates when heating function is active
- Easy installation with included holder, suction cups, and integrated post-calibration tool
- Compatible with select OASE filters (BioPlus, FiltoSmart with ThermoFit, BioMaster series)
- Made in Italy, backed by German engineering
- UL certified with 3 year warranty
What's Included:
- HeatUp adjustable heater
- Holder with suction cups
- Integrated post-calibration tool
- Power cord (6 ft.)
Perfect for aquarists who demand precise temperature control and reliable performance. The HeatUp heater maintains stable water temperatures with German-engineered accuracy, and can be installed in-tank or integrated with compatible OASE canister filters to minimize visible equipment.
Technical Specifications
| 25 Watt | 50 Watt | 100 Watt | 150 Watt | |
| Dimensions | 0.9 x 8 inches (23 x 205 mm) | 0.9 x 8 inches (23 x 205 mm) | 0.9 x 9.6 inches (23 x 243 mm) | 0.9 x 12 inches (23 x 315 mm) |
| Weight | 0.53 lbs. (240 g) | 0.53 lbs. (240 g) | 0.55 lbs. (241 g) | 0.62 lbs. (281 g) |
| Recommended Aquarium Size | 10 gallons (25 L) | 15 gallons (50 L) | 30 gallons (100 L) | 40 gallons (150 L) |
| Works with | - | BioPlus 50 | BioPlus 100, FiltoSmart 100 with ThermoFit 100 | BioMaster 250 |
| 200 Watt | 300 Watt | 400 Watt | ||
| Dimensions | 0.9 x 12 inches (23 x 315 mm) | 0.9 x 14.6 inches (23 x 370 mm) | 0.9 x 17.3 inches (23 x 440 mm) | |
| Weight | 0.64 lbs. (290 g) | 0.68 lbs. (308 g) | 0.70 lbs. (317 g) | |
| Recommended Aquarium Size | 55 gallons (200 L) | 80 gallons (300 L) | 106 gallons (400 L) | |
| Works with | BioPlus 200, FiltoSmart 200 with ThermoFit 200, BioMaster 350 | FiltoSmart 300 with ThermoFit 300, BioMaster 600 | BioMaster 850 |
All models: Rated Voltage 115V / 50-60 Hz | Power Cord Length 6 ft. (2 m) | Suitable for fresh and marine water | UL certified | 3 year warranty
Frequently Asked Questions
Q: How do I choose the right wattage for my aquarium?
A: As a general rule, use 3-5 watts per gallon. Check the recommended aquarium size in the specifications table above. For example, a 30-gallon tank would use the 100W model, while a 55-gallon tank would use the 200W model. Consider higher wattage if your room temperature is significantly cooler than your desired water temperature.
Q: Can I use this heater with my OASE canister filter?
A: Yes! Select HeatUp models are compatible with OASE BioPlus, FiltoSmart (with ThermoFit adapter), and BioMaster filters. Check the "Works with" row in the specifications table to see which filters are compatible with each wattage. This allows you to hide the heater inside the filter canister, reducing visible equipment in your aquarium.
Q: How accurate is the temperature control?
A: The HeatUp heater is highly accurate. The main temperature scale adjusts from 66°F to 90°F, and the secondary control knob allows fine-tuning within +/- 2°F. The bi-metal technology continuously monitors and maintains your set temperature, with a thermal shutoff switch for added safety. The integrated post-calibration tool ensures ongoing accuracy.