Industrial Bayonet Immersion Heaters: What They Are & How They Work

If you’re looking for an efficient and cost-effective way to heat large quantities of fluid at your plant or facility, an industrial bayonet immersion heater may be your best bet.

These versatile pieces of heating equipment are incredibly effective when it comes to regulating the temperature of process solutions, oils, heat transfer fluids and more. They’re ideal for use in a variety of industries and applications.

Here, we’ll dig a little bit deeper into the details of industrial immersion heaters, exploring how they work, their advantages, their uses, and more.

What is an Industrial Immersion Heater?

Immersion heaters, also known as bayonet heaters, are heating elements that are immersed directly in a tank of material in order to heat the entire quantity of the material in the container.

While immersion heaters have various residential and household applications, industrial immersion heaters are used for large-scale heating and are often part of the thermal fluid heating systems found in industrial plants and facilities.

How Do Immersion Heaters Work?

Made up of tube bundles that efficiently transfer heat, immersion heaters are typically mounted to the side of the tank and completely submerged. The heating coil is directly exposed to the material within the tank or container, transferring the heat it generates to the liquid surrounding the immersion heater.

How Are Industrial Immersion Heaters Used?

Industrial immersion heaters are versatile pieces of equipment that can be used in a wide variety of processes and applications. They are commonly used in chemical processing, but are also utilized in other industries where careful control of material temperature is necessary.

It’s important to note that immersion heaters are similar to suction heaters in some ways, but they are used very differently. While suction heaters heat material as it is being pumped out of the tank or container, immersion heaters heat the entire container of material at once. As such, immersion heaters are the ideal choice when large quantities of material need to be stored at or heated to a specific temperature.

Key Benefits of Industrial Immersion Heaters

Why choose an immersion heater when there are many other industrial heating options to choose from? There are a few notable advantages to industrial immersion heaters.


If you are looking for an efficient way to heat large quantities of material at your plant or facility, an immersion heater is a terrific option. These heaters are incredibly effective when it comes to heat transfer, so they utilize energy very efficiently.

Low Maintenance

Because they require minimal maintenance, industrial immersion heaters are cost-effective. They are fully operational the vast majority of the time, which means your facility can stay up and running without significant downtime for upkeep or repairs.


Immersion heaters can be utilized to heat a wide variety of materials. Depending on the type of industry you are in, this can be very advantageous for your facility as you won’t have to invest in new equipment in order to heat a new material.

Learn More About Bayonet Immersion Heaters

If you’re in the market for an efficient tank heating solution, an industrial immersion heater could be just what you’re looking for.

Not sure an immersion heater is the way to go? Check out this heat exchanger comparison to learn about alternative tank heating options and gain a better understanding of which solution might be right for your facility.

Have specific questions about how an immersion heater could be used in a specific application at your current plant? Give us a call today at (715) 748-5888 or contact us online and we’d be happy to discuss your scenario. Whether you need a standard immersion heater, or a customized heating solution, we can help point you in the right direction.

More from the Enerquip Blog

Enerquip Bayonet Immersion Heaters – Get the details about the immersion heaters we manufacture for our customers and clients, plus check out our bayonet heater photo gallery.

Key Questions to Ask When Shopping for Industrial Heating Equipment – Find out which questions you should be sure to ask when you’re shopping for an immersion heater or other piece of industrial heating equipment.