HagenKB

Non-Submersible Heater condenstaion

I got my heater to work. It's heating the aquarium, but I think its condensing in the inside of the tube. Is that normal?

I got my heater to work. It's heating the aquarium, but I think its condensing in the inside of the tube. Is that normal?
The ceramic element support does absorb moisture over time, no matter how dry it was before it was used in the manufacturing process. As it sits, when exposed to a humid environment, it will absorb some of the humidity. When it is used regularly, the element will heat the ceramic core and slowly drive the moisture out from the core. As the unit cools, the water is condensed by the cooler external water temperatures on the tube. Since this is a new heater, I would suggest this is probably the cause of humidity.

If the tube begins to pool water, there may be an alternative explanation, that there may be water splashing close to the heater and it is working its way into the tube from the top. Ensure there is little, if any, splashing near the heater itself. If an air pump and aeration device is used, try to ensure that the air stone is running as far away from the heater as possible.

Otherwise, the repeated heating from the element will eventually drive the moisture trapped in the ceramic element from it over time and the problem should disappear as the vapour escapes from the close confines of the tube.

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