Heatmax B

Diathermic fluid

Heatmax B is a high performance heat transfer oil recommended for most installations. It meets the requested qualities for diathermic fluids:

  • Thermal stability
  • Chemical stability
  • Low vapour tension
  • Fully neutral towards metals
  • Non toxic
  • Benefits
  • Viscous oil from highly refined paraffinic base oil


  • Higher resistance against thermal cracking than conventional (higher viscosity) fluid
  • Oxidation resistant
  • Faster transfer to turbulent flow also during start-up operations thanks to good low temperature fluidity
  • Less energy consumption resulting in reduced operating costs
  • Extended service and fluid life
  • Applications
  • Heatmax B is recommended for heat transfer systems in a generator equipped with expansion vessels and a proper circulation speed, where the maximum oil temperature does not exceed 315 °C.