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

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  • Watlow firerod cartridge heaters N20A22-E12
    N20A22-E12 Watlow Cartridge Heater 3/4ODx20L 240V 2.25kW
    N20A22-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 20 in sheath, 240VAC, 2.25 kilo Watts total @ 49W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters N20A21-E12
    N20A21-E12 Watlow Cartridge Heater 3/4ODx20L 240V 1.15kW
    N20A21-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 20 in sheath, 240VAC, 1.15 kilo Watts total @ 25W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters N20A10
    N20A10 Watlow Cartridge Heater 3/4ODx20L 240V 5.25kW
    N20A10

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 20 in sheath, 240VAC, 5.25 kilo Watts total @ 115W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters N18A15
    N18A15 Watlow Cartridge Heater 3/4ODx18L 240V 5kW
    N18A15

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 18 in sheath, 240VAC, 5 kilo Watts total @ 122W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters N18A13-E12
    N18A13-E12 Watlow Cartridge Heater 3/4ODx18L 240V 2kW
    N18A13-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 18 in sheath, 240VAC, 2 kilo Watts total @ 49W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters N16A26-E12
    N16A26-E12 Watlow Cartridge Heater 3/4ODx16L 240V 1.8kW
    N16A26-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 16 in sheath, 240VAC, 1.8 kilo Watts total @ 49W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters N16A18
    N16A18 Watlow Cartridge Heater 3/4ODx16L 240V 4.7kW
    N16A18

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 16 in sheath, 240VAC, 4.7 kilo Watts total @ 129W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters N15A26-E12
    N15A26-E12 Watlow Cartridge Heater 3/4ODx15L 240V 1.5kW
    N15A26-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 3/4 in OD x 15 in sheath, 240VAC, 1.5 kilo Watts total @ 44W/in2 density, 6 in solid copper pins. No flexible lead options available.
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