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  • 36" Thermocouple Product Image
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    36" Thermocouple Q390A1061 36" Thermocouple
    SKU: Q390A1061
    Brand: Honeywell
    (51)
    $5.49 each
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  • 24" Thermocouple Product Image
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    24" Thermocouple Q390A1046 24" Thermocouple
    SKU: Q390A1046
    Brand: Honeywell
    (51)
    $4.74 each
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  • 30" Thermocouple Product Image
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    30" Thermocouple Q390A1053 30" Thermocouple
    SKU: Q390A1053
    Brand: Honeywell
    (51)
    $4.99 each
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  • 36" Thermocouple<br>w/ Maximum Copel Product Image
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    36" Thermocouple w/ Maximum Copel Q340A1090 36" Thermocouple w/ Maximum Copel
    SKU: Q340A1090
    Brand: Honeywell
    (19)
    $8.29 each
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  • 24" Snap-Fit Thermocouple Product Image
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    24" Snap-Fit Thermocouple 1980-024 24" Snap-Fit Thermocouple
    SKU: 1980-024
    Brand: Robertshaw
    (13)
    $4.15 each
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  • 36" Husky High Performance Thermocouple (25-35mV) Product Image
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    36" Husky High Performance Thermocouple (25-35mV) K16BT-36 36" Husky High Performance Thermocouple (25-35mV)
    SKU: K16BT-36
    Brand: Baso Gas Products
    (9)
    $16.29 each
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  • 36" Universal Replacement Thermocouple Product Image
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    36" Universal Replacement Thermocouple H06E-36 36" Universal Replacement Thermocouple
    SKU: H06E-36
    Brand: White Rodgers
    (9)
    $5.29 each
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    $5.09 each
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  • 36" Thermopile Generator w/ PG9 Pilot Adaptor Product Image
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    36" Thermopile Generator w/ PG9 Pilot Adaptor 1950-001 36" Thermopile Generator w/ PG9 Pilot Adaptor
    SKU: 1950-001
    Brand: Robertshaw
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    $32.55 each
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  • 15" Thermocouple Product Image
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    15" Thermocouple 233-46501-15 15" Thermocouple
    SKU: 233-46501-15
    Brand: Bradford White
    (5)
    $8.69 each
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  • 30" Thermocouple<br>(Screw-In) for CG, EG<br>EGH, CGA Boilers Product Image
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    30" Thermocouple (Screw-In) for CG, EG EGH, CGA Boilers 511-724-254 30" Thermocouple (Screw-In) for CG, EG EGH, CGA Boilers
    SKU: 511-724-254
    Brand: Weil-McLain
    (7)
    $17.25 each
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  • 36" Snap-Fit Thermocouple Product Image
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    36" Snap-Fit Thermocouple 1980-036 36" Snap-Fit Thermocouple
    SKU: 1980-036
    Brand: Robertshaw
    (13)
    $5.55 each
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  • HW Q309A1988 Thermocouple for IN Series 2 Boilers, 30" Lead Product Image
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    HW Q309A1988 Thermocouple for IN Series 2 Boilers, 30" Lead 8236024 HW Q309A1988 Thermocouple for IN Series 2 Boilers, 30" Lead
    SKU: 8236024
    Brand: Burnham
    (11)
    $22.89 each
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  • Thermocouple Kit<br>Model #TC-K24 Product Image
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    Thermocouple Kit Model #TC-K24 100108267 Thermocouple Kit Model #TC-K24
    SKU: 100108267
    Brand: AO Smith
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    $13.49 each
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  • 60" Snap-Fit Thermocouple Product Image
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    60" Snap-Fit Thermocouple 1980-060 60" Snap-Fit Thermocouple
    SKU: 1980-060
    Brand: Robertshaw
    (13)
    $9.95 each
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  • 24" Thermocouple<br>w/ Maximum Copel Product Image
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    24" Thermocouple w/ Maximum Copel Q340A1074 24" Thermocouple w/ Maximum Copel
    SKU: Q340A1074
    Brand: Honeywell
    (19)
    $7.89 each
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  • 72" Snap-Fit Thermocouple Product Image
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    72" Snap-Fit Thermocouple 1980-072 72" Snap-Fit Thermocouple
    SKU: 1980-072
    Brand: Robertshaw
    (13)
    $11.85 each
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  • 27" Low Mass Thermocouple Product Image
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    27" Low Mass Thermocouple 1960-027 27" Low Mass Thermocouple
    SKU: 1960-027
    Brand: Robertshaw
    (12)
    $11.95 each
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  • 30" Thermocouple<br>w/ Maximum Copel Product Image
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    30" Thermocouple w/ Maximum Copel Q340A1082 30" Thermocouple w/ Maximum Copel
    SKU: Q340A1082
    Brand: Honeywell
    (19)
    $8.79 each
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  • 18" Snap-Fit Thermocouple Product Image
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    18" Snap-Fit Thermocouple 1980-018 18" Snap-Fit Thermocouple
    SKU: 1980-018
    Brand: Robertshaw
    (13)
    $4.55 each
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  • 24" Universal Replacement Thermocouple Product Image
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    24" Universal Replacement Thermocouple H06E-24 24" Universal Replacement Thermocouple
    SKU: H06E-24
    Brand: White Rodgers
    (9)
    $4.99 each
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  • 48" Snap-Fit Thermocouple Product Image
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    48" Snap-Fit Thermocouple 1980-048 48" Snap-Fit Thermocouple
    SKU: 1980-048
    Brand: Robertshaw
    (13)
    $8.15 each
    141
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  • 35" Thermopile Generator w/ Push-in clip & 1/2" Thermopile Attaching Nut Product Image
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    35" Thermopile Generator w/ Push-in clip & 1/2" Thermopile Attaching Nut Q313A1188 35" Thermopile Generator w/ Push-in clip & 1/2" Thermopile Attaching Nut
    SKU: Q313A1188
    Brand: Honeywell
    (2)
    $43.99 each
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  • 35" Thermopile Generator w/ PG9 Adapter (750 mV) Product Image
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    35" Thermopile Generator w/ PG9 Adapter (750 mV) Q313A1170 35" Thermopile Generator w/ PG9 Adapter (750 mV)
    SKU: Q313A1170
    Brand: Honeywell
    (3)
    $43.59 each
    112
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  • 18" Thermocouple Product Image
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    18" Thermocouple Q390A1095 18" Thermocouple
    SKU: Q390A1095
    Brand: Honeywell
    (51)
    $4.74 each
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FAQs, Manuals & Videos

Resources

Articles

  • A thermocouple senses temperature at a pilot burner. The thermocouple determines if the main flame is hot and safe enough to ignite natural gas or propane to the burner. A thermocouple consists of two different metals joined together at one end. This unique bond of metals produces a small voltage at a given temperature.

    Honeywell, the leading manufacturer in thermocouples, produces a standard thermocouple as well as a thermocouple with maximum copel. Copel is an alloy of copper and nickel. A thermocouple with a higher amount of copel will have a longer life span than a standard thermocouple. Honeywell thermocouples are available in lengths of 18", 24", 30", 36", and 48".

    Robertshaw is known for its Uni-Couple thermocouple Series. The unique design of the Uni-Couple allows for installation to almost all pilot burners. The design includes a stainless steel tip which provides longer life, copper tubing for corrosion protection and low electrical resistance, and an extended cold junction for greater voltage output. Uni-Couples are available in lengths of 18", 24", 30", 36", 48", 60" and 72" making them an extremely versatile option.

    The Snap-Fit Thermocouple is an additional series of thermocouples by Robertshaw. Thermocouples in this series don't need complicated adapters to adapt to most pilot burners, making installation simple. Snap-Fit Thermocouples are available in lengths of 12", 18", 24", 30", 36", 48", 60" and 72".

    A thermopile generator consists of multiple thermocouples linked in a series to increase millivoltage output. Sufficient power is generated and can operate an automatic millivolt gas control system, independent from any exterior power source. Thermopile generators are available in a variety of lead lengths and connection types, making them cost effective and resourceful.

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