Hot Surface Igniter or Spark Igniter? What's the difference?
Posted by McCombs Supply on 20th May 2026
If you have a gas range, oven, furnace, or boiler in your home, there’s a good chance it relies on an igniter to safely light the gas burner. But not all igniters work the same way. Two of the most common types are Hot Surface Igniters (HSI) and Spark Igniters — and understanding the difference can help you diagnose problems, maintain your appliance, and choose the correct replacement
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