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Quality heaters since 1957

Heat Transfer Fluid Heaters

The unique convective heat transfer design of the Uniflux ® fluid heater eliminates the possibility of flame impingement on the process tubes and provides a completely uniform flux density around the periphery of each tube. This uniform heat flux reduces fluid degradation and prolongs the life of the heat transfer fluid. Shop assembled with all controls and instrumentation for automatic, safe and reliable operation.

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Heat Transfer Fluid Heater Applications & Specifications

Exotherm has a long history of making safe and reliable heat transfer fluid heaters. If necessary, Exotherm can design and provide a pump skid for use with the thermal fluid heater. Pump skids with single pumps, or with one or more installed spares are available.

Typical Applications

  • Chemical Reactors
  • Resin Kettles
  • Evaporators
  • Textile Heat Setting
  • Dehydrators
  • Drying Ovens
  • Paints
  • Varnishes
  • Dyes
  • Asphalt
  • Extruders
  • Rolls
  • Pilot Plants
  • Offshore
  • Gas Processing

Technical Specifications

  • 0.1 - 70 MMBtu/hr
  • Efficiencies to 95%
  • Process temperatures to 750°F
  • Thermal Fluid Pressures near atmospheric
  • Forced Circulation
  • Gas, Oil, or Dual-Fired Designs
  • Vertical or Horizontal Designs
  • Turndown ratios up to 40:1

Thermal Fluid Systems Photo Gallery


We also offer custom heaters designed to meet temperature rise requirements and thermal efficiency.

Questions? Contact Us

Exotherm builds superior heaters to suit unique applications. Fill out the form below with as much information as possible and we will get back to you quickly. Fields marked with * are required.