Adjust temperature by pushing the lever left or right at the top of the heater. Each push will adjust by 0.5°C. The heater is factory set at 25°C/77°F so, depending on current temperature, you may get an alert on the display when first used. Fluval have incorporated VueTech, a continuous visual display of water temperature, in their new heater that comes pre-installed into a square heater guard. The small profile is great for the desktop while it’s telescoping extension pole allows for floor placement of the base with the fan head extended up to 3.3 ft from the floor.

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I also tested the heater against three separate mainstream glass thermometers. Initially the Fluval consistently showed a reading 1°C below that of the glass ones. However, since the first water change, which meant switching the heater off, it has consistently shown the same temperature as the others. For tanks with external heaters I’ll continue to use Rena’s SmartHeater but, for any tanks where I’d be using an internal filter, I’ll be looking to use a heater from the Fluval E series range.

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You may compare this heater to Rena’s SmartHeater but as they are different types a straight comparison may be inadvisable. The Amaze-Breez – Foldable & Portable Fan by Amaze-Heater is a cool addition to the office, home study, college dorm, workshop, beach, park, poolside or any other area you need a refreshing breeze. It is battery operated making wireless cooling comfort a “breeze”. The test model has handled being switched off and on regularly every three to four days during water changes and there is a special comfort to be gained in looking at your tank before each bedtime and seeing that all is well with the temperature — thanks to a gentle green light.

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comfortable, efficient, safe and silent heating all season long. Come home to the warmth of Amaze Heater.

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Have the heater located by the water outflow from the filter so that the moving water disperses the heated water throughout the aquarium. Always unplug the heater when you are draining the tank to prevent the heater from overheating when it is no longer submerged. The heater will also warn if flow around it is too low but will continue to function when the low flow warning is active. Patent pending Heat Guard provides Low Surface Temperature (LST) and highly efficient dual convection technology. The only reason this product does not get five stars from me is because it does not have an element operative indicator.