1/8 inch FIREROD® Cartridge Heater

Detail The Watlow FIREROD not only set the industry standard for cartridge heaters,
it continues to make improvements in construction and design. Among these innovations is the 1/8-inch FIREROD. This miniature cartridge heater with swaged construction features high watt density, is capable of high operating temperature and provides long life in applications where it is essential to have a very small size. Like all of Watlow’s other FIRERODs, the 1/8-inch contains a resistance wire closer to the sheath and compacted MgO insulation, which maximizes heat transfer.
Features & Benefits Miniature size
  Low mass
  Swaged construction
  Numerous lead options available
  Outlasts competitors in life testing
Miniature size Delivers high performance in a small package and supports a wide variety of
application requirements
Low mass Offers better heat transfer, quicker response time and increased heater life
due to lower internal temperature
Swaged construction Higher watt density and temperature capabilities, maximum heat transfer
and increased safety due to low leakage
Optional internal thermocouple Reduces system footprint and measures temperature at point of application
Manufactured to the highest
 quality standards
Backed by 50 years of industry expertise and outlasts competitors in life
Numerous lead options available Maximum flexibility and performance


Material Maximum Operating Temperatures Maximum Watt Densities
  F° W/in2 W/cm2
Alloy 600 1400 760 400 62