Watlow Firerod

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.

Watlow FIREROD Cartridge Heaters Brochure (PDF)

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Firerod

441 items

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  • Watlow firerod cartridge heaters G4A191-E12
    G4A191-E12 Watlow Cartridge Heater 3/8ODx4L 120V 175W
    G4A191-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 4 in sheath, 120VAC, 175 Watts total @ 43W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters G4A163-E12
    G4A163-E12 Watlow Cartridge Heater 3/8ODx4L 240V 125W
    G4A163-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 4 in sheath, 240VAC, 125 Watts total @ 31W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters G3J87-E12
    G3J87-E12 Watlow Cartridge Heater 3/8ODx3.5L 120V 300W
    G3J87-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 3-1/2 in sheath, 120VAC, 300 Watts total @ 87W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters G3J77-E12
    G3J77-E12 Watlow Cartridge Heater 3/8ODx3.5L 120V 250W
    G3J77-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 3-1/2 in sheath, 120VAC, 250 Watts total @ 72W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters G3J68-E12
    G3J68-E12 Watlow Cartridge Heater 3/8ODx3.5L 240V 300W
    G3J68-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 3-1/2 in sheath, 240VAC, 300 Watts total @ 87W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters G3J65-E12
    G3J65-E12 Watlow Cartridge Heater 3/8ODx3.5L 240V 250W
    G3J65-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 3-1/2 in sheath, 240VAC, 250 Watts total @ 72W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters G3J63-E12
    G3J63-E12 Watlow Cartridge Heater 3/8ODx3.5L 240V 500W
    G3J63-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 3-1/2 in sheath, 240VAC, 500 Watts total @ 144W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters G3J22-E12
    G3J22-E12 Watlow Cartridge Heater 3/8ODx3.5L 120V 500W
    G3J22-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/8 in OD x 3-1/2 in sheath, 120VAC, 500 Watts total @ 144W/in2 density, 6 in solid copper pins. No flexible lead options available.
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