On my oil heater adjusting the air band and shutter I see the flame getting larger and larger as i decrease the air. Set to the smallest air intake the flame is the largest. I never see smoke.
I did a complete tune up last season and noticed this condition, then and again this season.
plz look at these videos of my flame and comment:
https://imgur.com/a/FyTEH7R
and
https://imgur.com/a/QCM7pXf
these are both at the same A/F ratio.
Your thoughts?
thanks,
paul
