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Process Circulation Heater


Process Circulation heaters utilize the flanged or screw plug immersion heater bundle mated to a welded pressurized pipe body or as we commonly refer to in our industry, the heater vessel. The circulation heater can be mounted horizontally or vertically and piped in line with your process inlet and outlet connections. The process air, liquid, or gas is force flowed from the inlet side of the heater vessel over the metal sheathed nichrome resistive heating elements to the outlet side of the heater vessel. This effectively allows 100% heat transfer efficiency from heater element to the process air, liquid or gas.

A temperature sensor is located at the heater outlet to measure process temperature and provide process temperature feedback to the temperature control panel or plant control room. Circulation heaters are designed and manufactured to be application specific depending on the design temperatures and pressures of the process air, fluid or gas and the overall system parameters. Gaumer Process offers standard circulation heater designs with or without insulation and well as customized circulation heaters to meet your project specific application requirements.

  • Process Circulation Heaters
  • Gaumer Process Circulation Heaters
  • Industrial Circulation Heaters
  • Spec Circulation Heaters


Circulation Heaters manufactured to ISO 9000, ASME, CRN, PED, GOST, INMETRO, NACE

99.9% pure MGO compacted insulation

Operating temperatures up to 1400 F.

Hazardous area terminal enclosures certified to: CSA/ATEX/IEC Ex

Watt Densities available from 2-90 watts/in.sq

Liquid tight terminal enclosures NEMA 4 and NEMA 4X/IP 66

Wattages available up to 3.5 MW in single units or circulation heaters can be piped in series to achieve higher wattage requirements

General Purpose terminal enclosures

Voltages available up to 4160V

UL listing available

Flange sizes range from 2"-36" ANSI Class. Customized fittings available

Element sheath sensors attached to elements for overheat protection

Screw plugs range from 1"-2 ½" NPT. Customized fittings available

Gaumer Process can provide a control system solution for your circulation heater

Incoloy 800 sheath material, other sheath materials available upon request

Gaumer Process can skid mount your circulation heater and control system

80/20 Nickel Chrome resistance wire


Fuel Gas

Process Air

Hydrocarbon Gases

Stagnant Air

Regeneration Gas

Boiler equipment


Freeze protection for many types of fluids

Boil Off Gas

Anti-freeze (glycol) solutions

Heat Transfer Fluids




API Crude Oil

Process Water

Hydraulic Oil

Deionized Water

Lubricating oils at API specified watt densities

Demineralized Water


Clean water

Specialty Chemicals

Potable water

Process Industrial Gas Flow

Industrial water