Robertshaw Thermocouple – 446-511 | 28" Length | Fine Thread | NG/LP Compatible | OEM Replacement

Robertshaw 446-511 Thermocouple – 28" Copper Lead | OEM Replacement for Heat N Glo, Heatilator, Quadra-Fire & Majestic | NG/LP Compatible

Ensure dependable ignition and safe performance in your gas or wood fireplace with the Robertshaw 446-511 Thermocouple. This OEM replacement thermocouple features a 28-inch copper lead and fine-thread connection for secure fitment. Compatible with both natural gas (NG) and propane (LP) systems, it is engineered to deliver precise flame sensing and long-lasting durability under high-heat conditions. Perfect for Hearth & Home Technologies (HHT) brands including Heat N Glo, Heatilator, Quadra-Fire, and Majestic.

Key Features:

• OEM Part Number: 446-511
• 28" Copper Lead: Flexible length for easier installation
• Fine Thread Connection: Provides a secure, reliable fit
• Fuel Compatibility: Works with both Natural Gas (NG) and Liquid Propane (LP)
• Brand Compatibility: Heat N Glo, Heatilator, Quadra-Fire, Majestic
• Application: Fireplaces, gas stoves, wood stoves, furnaces
• Rugged Construction: Built to withstand heat and environmental stress
• Made in the USA: OEM quality and performance

Specifications:

• Part Number: 446-511
• Brand: Robertshaw
• Lead Length: 28 inches
• Thread Type: Fine thread
• Fuel Compatibility: NG / LP
• Compatible Brands: Heat N Glo, Heatilator, Quadra-Fire, Majestic
• Application: Fireplaces, stoves, furnaces
• System Type: Millivolt
• Country of Origin: USA

Installation Tip:
Position the thermocouple tip directly in the pilot flame and securely thread into the valve port. Avoid overtightening to protect threads and ensure optimal conductivity.

Fit Confirmation:
This thermocouple is widely used across HHT product lines. Confirm part number 446-511 against your original or check your owner’s manual for compatibility. Installed parts are non-returnable unless defective.

Why Choose the Robertshaw 446-511?
Designed for long-lasting reliability, this OEM thermocouple ensures safe ignition, stable operation, and compatibility with leading gas fireplace and stove brands. Upgrade today for peace of mind and consistent performance.