Robertshaw 1970-036 Thermocouple

The Robertshaw 1970-036 is a professional-grade 36-inch Uni-Couple thermocouple engineered for high-performance flame sensing in standing pilot systems. This 20-30 millivolt lead features a proprietary zip nut design, allowing for rapid installation across virtually all pilot burner configurations by enabling the nut to be pushed, pulled, or threaded directly onto the rolled threads. Built to withstand demanding furnace and boiler environments, it utilizes a stainless steel outer jacket to prevent heat blistering and a high-conductivity copper and nickel alloy core for stable electrical output. The coaxial connection includes a lock washer to resist loosening from thermal expansion or mechanical vibration. Whether you are servicing a residential furnace or a commercial water heater, this universal thermocouple provides the necessary sensitivity and millivolt signal to ensure the gas valve remains open during safe operation and drops out quickly upon pilot failure.

• Universal Compatibility: The Uni-Couple design fits nearly all standing pilot assemblies, reducing the need to carry multiple vehicle-specific leads.
• Enhanced Durability: Stainless steel construction at the tip prevents oxidation and burnout in high-temperature combustion zones.
• Stable Signal: High-grade copper tubing ensures low electrical resistance for a consistent 20-30 mV output.
• Short-Circuit Protection: Integrated mica washers prevent internal shorting, ensuring reliable safety valve operation.
• Simplified Mounting: Includes a Tinnerman clip and versatile threading for precise positioning within the pilot flame.

Is the Robertshaw 1970-036 compatible with both natural gas and LP systems?
Yes, this thermocouple is rated for use with both natural gas and liquid propane (LP) standing pilot applications.

Can I use a 36-inch lead to replace a shorter 24-inch thermocouple?
While a longer lead can be used, care must be taken to ensure the excess copper tubing is coiled loosely without kinking to maintain the millivolt signal integrity.

Does this unit work with electronic ignition systems?
No, this is a standing pilot safety component. Intermittent pilot or direct spark systems typically require an igniter-flame sensor or a thermopile, depending on the valve voltage.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.