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Wow, you're very good at seeing a roadblock, determining a workaround and implementing it in a very short time frame! This is a great alteration and should give you good flame stability in any situation.

Looking forward to video when it's in operation down the road!

BTW, I think it 's great that you are blazing a new trail with your arduino based ignition and safety controls. This will be a big improvement in gas fired homeroasting safety for folks not wanting to spend a fortune on industrial burner safety devices.

Allen