How does your gas furnace light the burners when it starts a heating cycle? In your mind, you may see a standing pilot light doing the job. That makes sense because standing pilot lights did this job for many decades and it’s just become part of how we think about furnaces.
But chances are high that your furnace doesn’t have a standing pilot light at all. The pilot light is becoming a relic of the past, replaced with electronic ignition systems.
We’re going to look into this change and explain why electronic ignition is now favored over conventional standing pilot lights.