FIREROD Cartridge Heaters

The FIREROD® cartridge heater revolutionized the heating element industry in 1954 when it was patented as the first swaged cartridge heater. The mechanical procedure of swaging reduces the diameter of the heater by compacting the unit; this directly improves the heat transfer and efficiency of the heater.

FIREROD cartridge heaters are built using only the finest materials and construction methods and are backed with extensive quality assurance programs. With premium materials and tight manufacturing controls, the FIREROD heater provides superior heat transfer, uniform temperatures, resistance to oxidation and corrosion and a long life even at high temperatures.

FIREROD offers many delivery programs to meet your needs. 


Material Maximum Operating Temperatures Maximum Watt Densities
°F °C W/in2 W/cm2
Alloy 800  1400 760 400 62
Stainless steel  1000 538 400 62
  • Part temperatures up to 1400°F (760°C) on Alloy 800 sheath
  • Watt densities up to 400 W/in² (62 W/cm²)
  • Maximum voltage up to 480V