Metal Sheath Elements Provide 50% Radiant Efficiency And A 5,000 Hour Life Expectancy.
Metal Sheath Elements are made of a nickel-chrome alloy coiled element imbedded in magnesium oxide insulating powder to provide long lasting durability. 0.430" diameter Inconcel envelope. Sheath elements provide 50% radiant efficiency and a 5,000 hour life expectancy. All heating elements operate at 50/60 hertz. Color temperature is approximately 1,600°F with dull orange glow. Watts range from 3150 to 9500. Replacement Elements - types A, B, and C for use with CH Series Heavy Duty Metal Sheath Electric Infrared Heaters and/or FHK Series Portable Metal Sheath Electric Infrared Heaters. Type A replacement elements are for use with heaters produced before November 2011. No Type A replacement elements can be used with any heaters produced after November 2011. 1 or 3 phase motors. Volts, amps and dimensions vary per model.