BJ22 Bolt-Type Heating Rod
1. Lifespan of heating rod: It is recommended to replace ordinary heating rods every two years, because the internal bimetallic strip may malfunction over time. Since it is not very expensive, replacing it gives you peace of mind and avoids unnecessary losses.
2. Which is better, glass or stainless steel? It's hard to say; each has its own advantages. Generally, glass heating rods are inexpensive (except for some special processes), widely used, and can be applied in various aquariums. The disadvantage is that they are easy to break. If used in large fish tanks, they must be equipped with a protective cover to prevent fish from breaking them. The advantages of stainless steel are obvious: sturdy, durable, and aesthetically pleasing. However, the disadvantage is that they cannot be used in corrosive environments, such as saltwater tanks.
3. Quality: In fact, domestic ones are sufficient.
