Burnham 8236024 30" Thermocouple Q309A1988 for IN Series Gas Boilers

The Burnham 8236024 is a genuine OEM replacement thermocouple designed specifically for Burnham IN Series 2 gas boilers, including models IN10, IN11, and IN12. This 30-inch thermocouple features the Honeywell Q309A1988 sensing element, ensuring reliable pilot flame detection and safe boiler operation.

Key Features:

• 30-inch lead length provides flexible installation options
• Generates 22-30 mV DC voltage for consistent safety control
• Maximum operating temperature: 750°C hot junction, 415°C cold junction
• Recommended operating temperature: 650°C ±50°C at hot junction
• 30-45 second maximum drop-out time for enhanced safety
• Split nut connection for easy pilot burner installation
• Compatible with natural gas applications

This thermocouple works as a critical safety device by sensing the pilot flame and generating a low DC voltage that keeps the gas valve open. If the pilot flame extinguishes, voltage generation stops and the safety pilot immediately interrupts gas supply to prevent dangerous conditions. The Honeywell Q309A1988 thermocouple is engineered for reliable performance in residential and commercial boiler applications, providing peace of mind with proven flame sensing technology.