Tempco Custom Heater Manufacturing

Tubular PRocess Heater for Warming Fuel oil

A Tempco Distributor requested a quote for a custom process heater design with a unique challenge. Their customer had a reservoir that is 8 x 23 feet but very shallow at only 16 inches deep. It was filled with a fuel oil that needed to be kept warm. It required 30 kw of power and for the immersion heater to be installed through the top of the reservoir.

Tempco looked into the application details and had several technical discussions with the customer. We proposed a solution using multiple custom-designed immersion heaters. The proposal included a specific installation method that accommodated the requirement that the process heaters be installed through the top of the reservoir and included a mating plate to attach the heaters in the tank. We recommended that heaters be installed in four different locations within the tank. This solution would heat the fuel oil from several areas within the reservoir rather than depend on conduction to spread the heat over the large area of the tank.

Each heater had the following features:

  • Three coiled tubular heating elements to decrease watt density below 16 w/in2 maximum
  • Three-phase wiring
  • 7.5 kw of power each
  • An immersed length of 15 inches
  • Mounted on a 6 inch, 150 lb steel flange
  • A bracket installed on the heater end to give the elements some stability when powered and prevented the heaters from drooping


Javier G.

Product Engineering Manager

June 11, 2020


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Tempco Electric Heater Corporation

607 N. Central Ave. | Wood Dale, IL 60191-1452 USA
Phone: 630.350.2252 | Toll Free: 888.268.6396
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