The Reznor 147166 Spark Ignitor is a critical OEM replacement part designed for high-performance ignition in commercial and industrial gas-fired heating systems. This gas burner electrode utilizes a ceramic-insulated design to deliver a high-voltage discharge, ensuring reliable combustion initiation across various Reznor unit heater models. As an essential intermittent pilot component, the 147166 is engineered to withstand the rigorous thermal cycling of heavy-duty HVACR environments without degradation. Please note that this specific configuration is the spark ignitor less cable version; it is intended for technicians who are utilizing existing high-tension leads or custom lengths to match specific field requirements. By maintaining precise spark gap tolerances, this ignition electrode optimizes burner sequencing and helps prevent lockout conditions caused by weak or inconsistent arcs. Its robust stainless steel probe and mounting bracket provide the mechanical stability needed for accurate placement within the pilot assembly, facilitating seamless HVAC system integration for professional contractors. Key Benefits OEM Compatibility: Specifically engineered as a direct-fit component for Reznor heating equipment, ensuring exact geometric alignment with the pilot assembly. Thermal Durability: Constructed with high-grade ceramic insulation and corrosion-resistant alloys to maintain dielectric strength under high-temperature conditions. Installation Flexibility: Supplied without the high-tension cable, allowing for more versatile wiring solutions in constrained cabinet spaces. Reliable Combustion: Provides a consistent, high-energy spark to minimize delayed ignition and improve overall fuel efficiency in gas-fired units. Common Questions Does this include the high-tension lead or ignition wire? No, the 147166 is specifically the spark ignitor electrode assembly and does not include the cable. How can I tell if my existing ignitor needs replacement? Look for hairline cracks in the ceramic insulator, excessive carbon buildup on the tip, or a weak, orange-colored spark instead of a crisp blue arc. Is this part compatible with liquid propane (LP) systems? Yes, this spark ignitor is designed to operate in both natural gas and LP configurations, provided the pilot burner is properly jetted for the fuel type. This item is not eligible for free shipping. 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.
