Overview
The Fireye 129-174 HEI Spark Gap Tube Kit is a high-energy spark igniter system engineered for direct fuel ignition in commercial HVAC, boiler, and industrial burner applications. The High Energy Spark Igniter (HEI) is a Class 3 (special) igniter used for direct spark ignition of oil or gas igniters or small burners, with 12 joules of power delivered to the spark tip. Three sparks per second are delivered, ensuring reliable ignition in demanding environments.
Key Features
- Self-cleaning surface gap spark tip that produces a highly reliable 12-joule spark even in the presence of moisture, oil, and carbon deposits
- Removable spark tip that completely detaches from the spark rod through a threaded connection for quick and easy replacement
- Heavy-duty, UL-approved flexible cable connects the power unit to the spark rod assembly ensuring operator safety
- Standard and retractable HEI models available to fit a variety of igniter or burner types
- Compact design suitable for wall mounting at burner front
Technical Specifications
- Spark Output: 12 joules per spark
- Spark Frequency: 3 sparks per second
- Igniter Type: Class 3 (Direct Spark)
- Cable: Heavy-duty, UL-approved flexible cable
- Enclosure Rating: NEMA-4 or NEMA-4X (power pack)
- Operating Temperature: Up to 130°F ambient
- Duty Cycle: 100% continuous
- Spark Tip: Removable surface gap type with self-cleaning design
- Manufacturer: Fireye
- Part Number: 129-174
Typical Applications
The Fireye 129-174 is suited for:
- Large industrial burners and boilers in various utility applications
- Commercial HVAC heating systems
- Oil and gas burner ignition
- Direct spark ignition retrofit projects
- Boiler startup and flame establishment
Compatibility & Replacements
Compatible With
- Fireye burner control systems
- Industrial and commercial boiler systems
- Oil and gas burner applications requiring Class 3 ignition
- Burners with mounting provisions for removable spark rod assemblies
Replaces / Drop-In Replacement For
The Fireye 129-174 kit includes replacement spark gap tube components. Compatible spark tips include part numbers 145-18 (8″ length for spark rods 36″ and shorter) and 145-19 (27″ length for spark rods 38″ and longer). Verify compatibility with your system integrator before ordering.
Works With
- Fireye SureFire igniter systems
- NEMA-4 and NEMA-4X rated power packs
- Standard and retractable mounting configurations
- Direct spark ignition control modules and burner management systems
