加热棒的材质常见的有玻璃与不锈钢两种，玻璃的有易碎的缺点，一般出问题也是玻璃，可以进行换壳的维修，而不锈钢的不易碎比较坚固，但是在一些腐蚀性的环境中是不可以使用的，比如海水缸中就受到限制，同是不锈钢的加热棒如果出现损坏也不建议进行修复，重新购买一支是更好的选择。
There are two common materials of heating rod: glass and stainless steel. The glass has fragile defects. Generally speaking, the problem is also glass. It can be repaired by changing the shell. The stainless steel is relatively solid, but it can not be used in some corrosive environments. For example, it is limited in the sea water tank. If the heating rod of the same stainless steel is damaged, it is not recommended to repair it Again, buying another one is a better choice.