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%.

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