It may come as a shock to you readers, but not all heaters look like the ones you have in your home, whether you have a radiator or a space heater or a fireplace. In fact, there are a number of applications that require what is known as an immersion heater to heat up various liquids without heating up everything around the liquid. When an electric heater is immersed in the liquid, it can heat it up safely and exclusively, which is sometimes necessary. This also utilizes less energy then it would to heat up the liquid by way of the container or an oven-like structure, so immersion heaters may also be considered eco-friendly.

Immersion heaters must be handled with care, partly because of how they are designed and partly because of the types of liquid they are sometimes used to heat up. Regardless of the specific style, every immersion heater has two major parts; the tubular element that gets hot and is immersed within the liquid and the electric section of the heater that has to be attached to heating section but must also remain outside of the liquid. The electric section of the heater would be ruined if immersed. The types of liquids that immersion heaters are utilized to warm up include oil, water, salt solutions, a variety of chemical substances and mild acids, the last two being substances that could be harmful if not heated properly. That means precision is an important aspect in the design of immersion heaters.

No heater is completely and totally safe, although we have learned how to take the safety precautions to ensure that the heaters in our homes and working environments are as safe as possible. The same is done by those who utilize immersion heaters, whether they are very large industrial heaters for chemical processing plants, or small models used in laboratory testing settings.