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Oase HeatUp

Oase HeatUp

  • Precise, patented control system
  • Ideal for continuous use
  • Easy installation: Includes mounting bracket
  • Function check: Display of heating function
In stock, only 17 left
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The adjustable heater HeatUp reliably ensures an uniform temperature level in the aquarium. At a nominal voltage of 230 volts, the patented control system allows a precise temperature readjustment. The adjustable heater has a high-quality finish, is easy to install and can be used for continuous operation. The activated indicator light allows easy control of the heating function.

Manual OASE HeatUp - - download PDF


  • Patented control system enables precise readjustment of the temperature (+ / - 3 °C)
  • Uniform temperature level thanks to patented bi-metal technology
  • High-quality workmanship for continuous submerged use
  • Including holder
  • Function check: The heating function is displayed via the activated control light


Operating instructions can be downloaded here.


Oase HeatUp 25
Diameter 23 mm
Height 205 mm
Power cord length 1,5 m
Oase HeatUp 50
Diameter 23 mm
Height 205 mm
Power cord length 1,5 m
Oase HeatUp 75
Diameter 23 mm
Height 243 mm
Power cord length 1,5 m
Oase HeatUp 100
Diameter 23 mm
Height 243 mm
Power cord length 1,5 m
Oase HeatUp 150
Diameter 23 mm
Height 315 mm
Power cord length 1,5 m
Oase HeatUp 200
Diameter 23 mm
Height 315 mm
Power cord length 1,5 m
Oase HeatUp 250
Diameter 23 mm
Height 370 mm
Power cord length 1,5 m
Oase HeatUp 300
Diameter 23 mm
Height 370 mm
Power cord length 1,5 m
Oase HeatUp 400
Diameter 23 mm
Height 440 mm
Power cord length 1,5 m


3-year warranty

OASE guarantees the performance of this product for the duration of 36 months, given that the purchasing person is also the consumer. The legal defect rights towards Aquasabi GmbH & Co. KG according to §§ 437 ff. BGB (German Civil Code) are not compromised by this warranty.

Extract from the warranty policy by OASE

"For this OASE unit purchased by you, OASE GmbH assumes a 36 month manufacturer's guarantee in accordance with the guarantee conditions laid down in the following. The guarantee period starts with the first purchase from an OASE specialist dealer. In other words, in the event of a resale, the guarantee period will not start again. If services are provided under the terms of this guarantee, this does not lead to extension or renewal of the guarantee period. Your legal rights as a purchaser, especially those ensuing from the warranty, persist. They are not restricted by this guarantee.
OASE GmbH guarantees impeccable, purpose-related properties and workmanship, expert assembly and proper functionality. Subject to our discretion, the guarantee refers to free-of-charge repair or free-ofcharge supply of spare parts or of a replacement unit respectively. Should the unit type concerned no longer be manufactured, we reserve the right, at our discretion, to supply a replacement unit from our range that is closest to the type subject to complaint. Claims, the origin of which can be traced back to installation and operating faults as well as lack of care, e.g. the use of unsuitable cleaning materials or negligent maintenance, use other than that intended, damage due to accidents, falls, impact, effect of frost, cutting plugs, shortening cables, calcium deposits or improper attempts to repair the unit, are not covered by our guarantee. We hereby refer to the proper use as specified in the instructions of use that form an integral part of the guarantee. Wear parts such as bulbs etc. are exempted from the guarantee. The refund of costs for removal and installation, checks, claims for lost profit and damages are exempted from the guarantee together with further reaching claims for damages and loss of whatever nature caused by the unit or its use. The guarantee is only valid in the country in which the unit was purchased from an OASE dealer. This guarantee is governed by German law under the exclusion of the agreement of the United Nations covering contracts governing the international sale of goods (CISG) regulations. Guarantee claims can only be brought forward by presenting the sales receipt to us, OASE GmbH, Tecklenburger Straße 161 in D-48477 Hörstel, Germany by returning to us the unit or part of the unit subject to complaint, freight free, at your own risk, accompanied by a copy of the original purchase receipt from the OASE specialist dealer, this guarantee document and written information of the fault encountered."
Source: operation manual, last viewed 08.12.2021

Tecklenburger Straße 161
48477 Hörstel; Germany

Mail: info@oase-teichbau.de



Founded in 1949, the traditional German company Oase from Hörstel in Germany is passionate about developing and selling professional equipment for all aspects of water. Filters, pumps, water conditioners, complete aquariums as well as fish food and accessories for aquaristics are part of the product range. With the biOrb product line, decorative and technically advanced all-in-one terrariums including accessories are also part of the portfolio. In addition, Oase is very successful worldwide in the garden, pond and waterworks sectors and, with Oase Professional, also offers solutions for hydraulic engineering, fountain technology and pond management.

General information

Item no.
EAN 4010052426983
Weight 0,20 kg
Shipping weight 0,30 kg

Customer reviews

This item has been rated 3.5 out of 5 stars
2 Reviews
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5 Stars(0)
4 Stars(1)
3 Stars(1)
2 Stars(0)
1 Star(0)
Stephane D.
Was working fine and then died within 2 years :(
7th September 2020
Oase - HeatUp - 300
Oase - HeatUp - 300

This heater was working fine and finally died only after 2years :( This is quite disappointing... This issue has been raised already on multiple forums, I would have hope that... (read more)

Laura V.
Macht was er soll
13th October 2016
Oase - HeatUp - 25
Oase - HeatUp - 25

Der Heizstab ist sehr kurz und man kanm ihn gut verstecken.

Nur die Saugnäpfe waren etwas schwer in den Halter zu bekommen.

Die Temperatur bleibt konstant.