Over-the-Side Immersion Heaters

Over-the-Side Immersion Heaters are designed for applications where thru-the-side immersion heaters cannot be conveniently installed. These units are inserted through the top of the tank or drum with the heating elements along the bottom or side of the reservoir. Over-the-side heaters permit portability and can be installed and removed with ease.

A wide selection of watt densities, power ratings, and element sheath materials are available as well as custom flange mounts. Legs increase the space between heater and tank bottom, depth can be customized as needed.


Water and oil heating, applications requiring the heater to be installed from the top of the tank, and more.

Get exactly what you need

Know that you need an electric process heater but not sure what to order? We're here to help. We can design and build a custom heater specific to your needs. Begin the process by answering some common questions.

Know the specifics? Configure your model number

You can configure your model number if you know what to select in the fields below. Once you have selected all variables, you will have a model number used to request an estimate. We will be in touch to confirm the model configured is right for your needs. Go to our model numbering system for an explanation of the details below.

We will be in touch soon to confirm the model configured is right for your needs.
Custom flange shapes and sizes are available, include requests in the "Additional Information" box.
Metric sizes are available upon request.
Custom options are available for any specification above. Request a custom heater.