Engineered heat transfer fluids manufactured by Paratherm provide precise, uniform liquid temperature control to 650ºF in variety of industrial equipment that processes a wide range of materials.

Below is a categorical list of process equipment using engineered heat transfer fluids to heat, cool, or maintain specific temperatures in industrial applications. Industrial categories are in alphabetical order.

Asphalt (hot mix)

  • Batch, drum and portable hot mix plants, silos, drag slat, tracing of pipe, valves, strainers and pumps.

Asphalt (roadway)

  • Screeds, pavers, crack sealers, melters, striping equipment.

Asphalt (building materials)

  • Coating equipment (tar paper, shingles, tiles, flooring, insulation), tar melters.

Bulk Liquid Transport

  • Railcar, tanker, barge, tracing, pipeline heating, vaporizing.


  • Reactors, distillation columns, autoclaves, condensers mixers, kettles, storage tanks, dryers, thermal oxidizers, pipe tracing, waste heat recovery.

Converting (fine papers, textiles, non-wovens, foil, film, fiberglass, roofing paper)

  • Coaters, glue pots, printing presses, drying rolls, laminating rolls, bonding rolls, waste heat recovery, thermal oxidizers.

Die Casting

  • Die preheating, production die temperature control, waste heat recovery.

EDM/EDG (Electric Discharge Machining, Electric Discharge Grinding)

  • Dielectric fluid for submerged arc metal cutting.


  • Dielectric fluid for transformers, power amplifiers, capacitors.  Calibration baths. Hot circuitboard presses.

Food processing (Industrial)

  • Fryers, convection ovens, woks, belt grills, extruders, mixers, autoclaves, kettles, dryers, dehydrators, waste heat recovery.


  • Building unit heaters, in-floor heating, unfired steam and hot water generators.

Laundries (High production linen ironing – sheets, towels, pillowcases, table linens)

  • Heating flatwork ironers, generating unfired steam and hot water.

Liquid Terminals

  • Heating of storage tanks and vessels, tracing of pipe, valves, lines, pumps, strainers and components (heavy oils, asphalt, molasses, palm oil, other viscous liquids).


  • Cargo hold heating, tracing of valves, lines, strainers and pumps, storage tank heating (sulfur, heavy oils, asphalt, molasses, palm oil, other viscous liquids).

Metal Processing

  • Plating, wire drawing.


  • Power laser cooling, video projection lens cooling.


  • Injection molding presses, thermoformers, laminators, calenders, gluers, drying rolls, waste heat recovery, extruders, film casting.

Paper (and pulp)

  • Drying rolls, coating equipment, gluing machines, corrugated, chip board waste heat recovery


  • Cookers, fermenters, reactors, storage tanks, kettles, autoclaves, mixers, dryers, extruders, condensers, waste heat recovery.


  • Molds, barrels and screws of injection molding and blowmolding machines, hot laminating rolls, extruder screws, barrels, dies, lost-core molding (core melt-out).

Power Generation

  • Waste heat recovery.


  • Dryers, gluers, laminators, waste heat recovery.

Recovery (Solvent)

  • Portable stills, distillation systems, columns, perc stills.

Recovery (waste heat)

  • Fintube exchangers in exhaust stacks, ovens, kilns, furnaces, incinerators, thermal oxidizers.

Remediation (soil)

  • Dirt cookers, hollow flight screw conveyors, waste heat recovery, thermal oxidizers.

R & D

  • Constant temperature baths, circulators, viscometers, laser cooling


  • Compression molding press platens and molds, extruder barrels, screws, dies, hot calender rolls, dip tanks.

Steam Generation (Unfired)

  • Thermal fluid heaters/oil-to-steam exchangers in hospitals and laundries for building heat, sterilization, humidification, flatwork ironers, and in industry for process heating of vessels.

Waste Treatment

  • Sludge drying, waste heat recovery.

It’s also important to mention that missing from the list (it’s an application-oriented list) are the terms for the heating equipment itself.

Small electric systems are called; hot-oil temperature control units, hot oil units, oil circulating high temperature controllers, thermolators, thermal fluid circulators, mold temperature controllers, die temperature controllers, and other variations on these themes.

There is some overlap, but larger systems/heaters are generally called; thermal fluid systems, hot-oil systems, oil-temperature control systems, hot oil heaters, boilers, thermal fluid heaters, thermal fluid circuits, thermal liquid systems, thermic fluid circuits, and variations. There are electric and fired systems. There are fossil-fuel fired and wood fired heaters. Within the fossil-fired class, there are water-tube type heaters, and fire-tube types. There are vapor-phase and liquid-phase thermal fluids, and systems/heaters. Paratherm is exclusively liquid phase. The term “boiler” is kind of a misnomer for these heaters; it is nevertheless very commonly used.