Type FHT Heater

The Casso-Solar Technologies’ Electric (Infrared) Heater Type "FHT" is a self-contained, high temperature furnace heater module, designed for ease of use and installation.

The FHT heater maximizes productivity through high energy transfer rates, uniform energy distribution, and accurate process control.

The FHT heater is meant to be used as part of a larger array of FHT heaters to create a furnace-like environment up to 1600°F.

Each module has a total insulation thickness of 6" and an array of modules can be used to create the wall, ceiling, or floor of a furnace without additional insulation.

Individual modules can be provided with thermocouples or with a sight hole for mounting a pyrometer for temperature control.

Single units can also be designed with multiple zones for when precision control is required.

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  • Used to create furnace environments up to 1600°F
  • Designed to serve as wall, ceiling or floor of a furnace without need for additional insulation
  • Heater modules contain 6" of insulation behind heated face
  • Can be arranged into large arrays
  • Exterior casing is maintained at or below 125°F, eliminating need for terminal cooling


  • Watt Densities: Up to 40 watts per square inch
  • Voltages: Up to 600 volts. 50/60 Hertz
  • Wavelength Emission: 2.5-6.0 microns
  • Temperature Range: Up to 1900°F for furnace environment up to 1600°F
  • Weight: Average 8 Lbs. per square foot
  • Life Expectancy: 12,000 hours and more
  • Warmup Time: Less than 5 seconds
  • Size: Up to 20" x 20"

Industries & Applications

  • Glass Bending (Ballistic, Architectural, Automotive, & Aerospace)
  • Glass Casting & Slumping
  • Ceramic Ink Firing
  • Glass Annealing
  • Chemical Vapor Deposition Furnaces
  • Dry and Fire Precision Ceramic Parts
  • Preheat Metal for Cladding

Available Options/Customizations

  • Can be equipped with thermocouple or through-hole for pyrometer
  • Multiple zones possible within a single module
  • Non-rectangular shapes
  • Edge compensation