An Introduction to Electric Circulation Heaters

Heating is a vital part of almost every industrial procedure. From oil refining to chemical manufacturing, heaters are used everywhere from Los Angeles California to Charlotte, North Carolina and for the most part, the design and specifications of heaters vary in accordance with the area of application. But there are some heaters that can be used in every industrial application and circulation heaters are one of these heaters. Unlike flanged heaters, electric circulation heaters are used to heat and compress fluids as well as gases.


The physical design of a typical circulation heater seems quite similar to a simple tube exchanger, but beneath the surface there are a number of differences. Though both the exchange and circulation heaters have vessels where the fluid or gas to be heated is contained, a heat exchanger uses hot tubes through which the medium to be heated flows. A circulation heater, on the other hand, needs electric power to function. It has multiple heating elements and a thermostat to heat the fluid to the desired temperature. Digital Control Panel Installation

Heat exchangers have two sides- the shell side and the tube side. As the name implies, heat exchangers work on the principle of transferring heat from the cold region (shell side) to the hot area (tube side). Electric circulation heaters have just one vessel. The heating element is directly immersed into the fluid or gas to be heated. The direct supply of heat also reduces energy losses that occur during hear transfer.

Circulation heaters are different from other electric heaters because the heating elements present in these heaters keep on circulating, which makes them suitable for all types of mediums (liquids and gases). Just like other electric heaters, circulation heaters also come in different sizes. Their power and voltage ratings also vary with their sizes.


Electric circulation heaters, due to their design and efficiency, are used in a wide range of industrial applications. They are used to compress gases as well as for heating all types of fluids. Electric circulation heaters are used in the following industries:

Circulation heaters, due to their easy operation and efficiency, have replaced traditional heat exchangers to a significant extent. They can perform all the functions that a simple tube heat exchanger does.

Technical Considerations

Here are some technical considerations you must keep in mind to ensure proper functioning of circulation heaters:

  • Heating viscous and unrefined fluids can often lead to coking. To avoid this problem, regular greasing of moving parts is important.
  • If the heater is installed vertically, make sure the enclosure temperature does not go too high-it can impact the functioning of internal limit sensors.
  • Make sure all the sensing probes are working properly.
  • Keep a regular check on internal wiring and insulation.
  • Last but not least- avoid using silicone lubricant on active heating elements.


Latest blogs

Common Industries that Wattco works with

Case Studies View All

Why is Mineral Oil Used in Thermal Heaters?
Thermal heaters, also known as thermal fluid heaters, employ the use of a thermal liquid such as wat...
Read More..

What to Use When Heating Wax
SituationA popular chemical compound that often requires heating is wax, which is an organic compoun...
Read More..

What is Passivation? Why do We Need to Passivate Flanged Heaters?
  Most of the parts of flanged heaters are made of stainless steel—an alloy that is mainly compri...
Read More..

What is a Digital Controller?
Control panels are essential elements of any electrical device. Control panels are especially i...
Read More..

Vegetable Oil Heating
Food Industries and Vegetable Oil Viscosity In Cleveland Ohio, a large food manufacturer called WATT...
Read More..

Wattco News View All

Temperature Control Panels: A Guide to Control Options
It’s important to choose the right industrial heater for your application. But it’s just as impo...
Read More..

Flanged Immersion Heaters in the Petrochemical Industry
Flanged heaters are commonly used for heating a variety of gases and liquids. These include heat tra...
Read More..

Industrial Heating 101: All about Electric Heaters
Whether it is chemical manufacturing in Denver Colorado, or refining deep in the heart of Texas, hea...
Read More..

Over the Side Heaters for Wax Liquids
In industrial operations, an important element that requires heating is liquefied wax. This process ...
Read More..

What are Immersion Heaters?
Immersion heaters are commonly installed inside industrial processing equipments such as liquid tank...
Read More..

Most Popular Blogs View All