Velocity Boiler Works 3504100 Q3481B1131 Pilot Assembly for Crown Boilers

The Velocity Boiler Works 3504100 is a genuine OEM pilot assembly designed for use with Crown boiler systems. This complete assembly features the Honeywell Q3481B1131 intermittent pilot burner with integrated igniter-sensor for reliable flame ignition and detection.

Key Features:

• Honeywell Q3481B1131 intermittent pilot burner/igniter-sensor configuration
• Single rod combination spark igniter and flame sensor design
• Kanthal electrode/flame rod material for high-temperature durability
• Spark gap specification: 0.090 to 0.140 inches for optimal ignition
• Maximum bracket temperature rating: 1000°F (538°C)
• Complete assembly includes pilot burner, bracket, and mounting hardware

This pilot assembly is responsible for igniting the main burner and maintaining stable flame detection in Velocity Boiler Works Crown boiler models. The integrated spark igniter and flame sensor eliminate the need for a traditional thermocouple, providing faster, more reliable ignition in intermittent pilot applications. The assembly is engineered to meet OEM specifications for consistent performance and long service life in residential and commercial heating systems.