interrupted ignition


  #1  
Old 02-27-10, 06:35 PM
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interrupted ignition

Hi all, I installed an electronic primary control on the Beckett AFG burner on my W-M hot water boiler. This gives me ignition for 10 seconds and then the spark stops. My question is: why is the flame so much quieter without the spark? The difference is dramatic, and I'm curious why-
Thanks, Steve
 
  #2  
Old 03-01-10, 06:17 AM
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The ignition spark is blown away from the electrodes by the forced air. This creates a raspy sound as the spark gets longer and irregular. Sort of like a Jacobs ladder. As the spark reaches the wider top the spark gets louder.

Same with the ignition spark in an oil burner.

Al.
 
 

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