1、 Temperature controlled and uncontrolled

1. Temperature controlled heating rod

Intelligent heating rods can regulate temperature, with power ranging from 50W to 1000W, commonly including 100W, 200W, 300W, and 500W. This type of heating rod can set the temperature in advance. When the water temperature reaches the preset temperature, the heating rod will automatically turn off. If the water temperature drops, the heating rod will automatically turn on heating until the water temperature meets the standard.

2. Non temperature controlled heating rod

The common specifications of non temperature controlled heating rods include 50w, 75w, 100w, 125w, 150w, and 200w. This type of heating rod is very simple, simply winding the resistance wire on a ceramic tube and placing it in a heat-resistant and waterproof glass tube. The wire is connected to the power supply through a waterproof sealant cover. It can be directly immersed in water for use. The non temperature control heating rod is mainly used to heat the clean water before changing the water in the fish tank. The heating rod with this power must have a thermometer, and the power should be turned off as soon as the temperature required for heating is reached.

2、 Material classification of fish tank heating rods

1. Glass material

This heating rod has the advantages of low price and can meet daily use, but it is basically non variable frequency. The disadvantage is that the thermal conductivity is slightly poor and fragile. Especially for large Aquarium fish, protective covers must be added.

2. Stainless steel material

The advantages of this heating rod are its moderate price and high durability. It is also basically non variable frequency and has better thermal conductivity than glass, making it the preferred choice for ordinary players.

3. PTC material

This type of heating rod is a new type of heating rod that has emerged in the past two years. It has high durability, good thermal conductivity, and is mostly variable frequency, with relatively powerful functions. The disadvantage is that the price is relatively high.