Case Study: Turning Ignition Issues into Reliable Heater Performance

Mixers Torch Pre Main Heaters
Mixers Torch Pre Main Heaters

The Challenge

Our customer was experiencing unreliable ignition and an inconsistent temperature profile on an IR heater- issues that threatened efficiency, startup reliability, and long-term equipment health. They needed an experienced combustion specialist to identify root causes quickly and restore dependable operation.

Our Approach

Mixers and Rib Heater
Mixers and Rib Heater

Dan Cox & Associates conducted a targeted, system-level evaluation of the IR heater, combining hands-on diagnostics with combustion tuning expertise. The inspection revealed a combination of electrical faults, mechanical misalignment, and aging components that were quietly limiting performance:

  • Failed ACF relays disrupting burner ignition
  • Improper grounding in the Rib burner control panel
  • Seized air trim valves and premix valve preventing accurate tuning
  • A defective IR Rib burner compromised temperature consistency
  • Misaligned Pre-Heater and Main Heater panels reducing ignition coverage and flame propagation

Along with addressing symptoms, our team also identified the true constraints preventing the heater from operating at its full potential.

Immediate Impact

On-site corrective action delivered fast, measurable improvements:

  • Faulty relays were replaced, restoring consistent and reliable ignition
  • Rib, Pre-Heater, and Main Heater burners were inspected and tuned where possible
  • Torch burner operation was verified to ensure system readiness

The result was a heater that started more reliably and operated more consistently, delivering immediate gains with minimal downtime.

The Path to Full Optimization

Mixer Assembly
Mixer Assembly

While the heater is now operational with improved reliable performance, our analysis made it clear that full efficiency and precision tuning require targeted upgrades. We provided our customer with a clear, actionable roadmap to reach peak performance.

Why It Matters

This project is a great example of why routine inspections and proactive maintenance matter. Identifying failing electrical components, mechanical misalignment, and failing hardware early helps avoid unplanned downtime and creates a clear roadmap for long-term reliability.

At Dan Cox & Associates, we specialize in diagnosing not just what’s wrong—but what’s holding your system back from performing at its best.

If you’d like help evaluating or improving your combustion systems, our team is ready to assist.