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)

Firerod

441 items

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  • Watlow firerod cartridge heaters L4A44-E12
    L4A44-E12 Watlow Cartridge Heater 5/8ODx4L 240V 600W
    L4A44-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 4 in sheath, 240VAC, 600 Watts total @ 88W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters L4A104-E12
    L4A104-E12 Watlow Cartridge Heater 5/8ODx4L 240V 250W
    L4A104-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 4 in sheath, 240VAC, 250 Watts total @ 37W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters L4A100-E12
    L4A100-E12 Watlow Cartridge Heater 5/8ODx4L 240V 750W
    L4A100-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 4 in sheath, 240VAC, 750 Watts total @ 110W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters L3N1-E12
    L3N1-E12 Watlow Cartridge Heater 5/8ODx3.75L 240V 525W
    L3N1-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 3-3/4 in sheath, 240VAC, 525 Watts total @ 82W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters L3N12-E12
    L3N12-E12 Watlow Cartridge Heater 5/8ODx3.75L 120V 525W
    L3N12-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 3-3/4 in sheath, 120VAC, 525 Watts total @ 82W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters L3A9-E12
    L3A9-E12 Watlow Cartridge Heater 5/8ODx3L 240V 250W
    L3A9-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 3 in sheath, 240VAC, 250 Watts total @ 51W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters L3A94-E12
    L3A94-E12 Watlow Cartridge Heater 5/8ODx3L 120V 400W
    L3A94-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 3 in sheath, 120VAC, 400 Watts total @ 81W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters L3A82-E12
    L3A82-E12 Watlow Cartridge Heater 5/8ODx3L 120V 250W
    L3A82-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 5/8 in OD x 3 in sheath, 120VAC, 250 Watts total @ 51W/in2 density, 6 in solid copper pins. No flexible lead options available.
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