Flow Heaters

A flow heater for clean gas flows up to 1100°C (2012°F) has been introduced to Kanthal®'s extensive product range. Due to its unique patented design and electrical heating system it gives very high gas outlet temperature and net efficiency up to 95%.

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Most flow heater designs are limited to 800°C (1470°F) gas temperature. The unique patented design of the Kanthal Flow Heater therefore allows up to 300°C higher gas outlet temperature than existing conventional technologies. The design gives very good temperature stability (+/- 1°C) and heating efficiency. Other key features are the very compact design and very wide flow range. Compared to gas burners, electrical heaters offer a cleaner work environment, easier installation, and fewer safety risks.

Basic Specification and Key Benefits

  • Maximum gas outlet temperature 1100°C (2012°F)
  • Power 3.5 to 40 kW
  • Flow rates up to 100 mN³/h
  • Direct connection to line voltage
  • High range of (mass) flow rates (up to 1:30)
  • Extremely small heater size per kW
  • 1 and 3 phase designs available
  • Usage in high pressure applications possible
  • Easy to control and large turn down ratio
  • No contamination of gas flow
  • For use with air, N2, O2, CO2, CO, CH4, H2


  • Process heat
  • Heat shrinking
  • Weld heat treatment
  • Pre-heating of molds
  • Die heating
  • Test rigs
  • Debindering
  • Spray processing