The OASE HeatUp 25 is a regulation heater with quartz glass technology, designed for reliable and adjustable warmth in aquarium environments. It operates on a standard 230 V mains connection and delivers 25 W of heating power.
25 W quartz glass heater provides steady, adjustable warmth for aquarium water
2.3 cm compact diameter fits most standard aquarium setups without bulky installation
24 months manufacturer warranty ensures long-term reliability and investment protection
Regulation-ready design allows precise temperature control when paired with a compatible thermostat
What makes the OASE HeatUp 25 stand out
The quartz glass heating element distributes heat evenly across the water column, minimising hot spots and protecting sensitive aquatic life. The compact 2.3 cm profile keeps the heater discreet while delivering consistent performance.
Ideal for
Aquarium enthusiasts maintaining freshwater or marine setups that require a reliable, low-profile heating solution. The 25 W output suits smaller to medium tanks where precise temperature regulation is essential for fish and plant health.
Application of OASE HeatUp 25
Submerge the heater vertically in the aquarium, ensuring the water level covers the heating element at all times. Connect to a 230 V power source and adjust the output to match the target temperature. For best results, pair with a separate thermostat for automatic regulation.
OASE is a German manufacturer specialising in aquarium equipment and water treatment products. The brand offers a wide range of heaters, filters, and accessories for freshwater and marine aquariums. OASE products are distributed through specialist aquatic retailers and online shops across Europe.
The OASE HeatUp 25 is a 25 W quartz glass regulation heater for aquariums. It provides adjustable, even heat distribution to maintain a stable water temperature for fish and plants.
The heater operates on 230 V mains power and delivers 25 W of heating output. It is designed for standard European household outlets.
The heater has a diameter of 2.3 cm and is made of quartz glass with a regulation-capable heating element. The compact design suits most standard aquariums.
The OASE HeatUp 25 is delivered as a single heater unit. Install it vertically in the aquarium, fully submerged, and connect it to a 230 V power source.
OASE provides a 24-month manufacturer warranty on the HeatUp 25, covering defects in materials and workmanship under normal use.
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