UTU 3/8" Dia. Heart Cross-Section Tubular Heater

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Chromalox UTU 3/8" Dia. Heart Cross-Section Tubular Heater, 240V, 800W, 40W/sq.in. watt density, 0.375" heart-shaped dia., 10-1/2" Incoloy sheath, Type 8 term., 1600°F max. working temp. (Replacement element for U-RAD, DU-RAD, & RUTU radiant heaters)
  • Product Description
  • Dimension Drawing
UTU 3/8" Dia. Heart Cross-Section

  • Component of Radiant Heater (type U-RAD, DU-RAD and RUTU)

Tubular heating elements perform exceptional industrial heat transfer by conduction, convection, or radiation to heat liquids, air, gases, and surfaces. In most commercial heater assemblies, tubular element design configurations vary: round, triangular, flat press, and formed. Bends are made to customer requirements: custom built from 0.200" to 0.475" diameters, a multitude of sheath materials with sheath temperature capabilities up to 1600°F, and watt densities to fit many applications up to 600 volts. Available with over 20 optional terminations and many stocked accessories.


  • Type 8 Terminals- Standard with threaded clip to facilitate wiring.
  • Type 3 Terminals- Heliarc-welded to the cold pin. See terminal detail drawing in the Tubular Heater Overview Section.
  • Retaining Rings- Locate elements in radiant heater assemblies.
  • Work Temperatures- See Tubular Heaters Overview Section.
  • Bending- Lengthwise only. See bending requirements Tubular Heater Overview Section.