lsayre wrote:If there has been an extended period of no fire leading up to this point and the fire is "sleepy" then at this juncture the fire can potentially go out.
OK, I believe I have got it.
I have noticed this also,but I have 80 lbs. of glowing coal in the firebox. When the blower turns on I have noticed the boiler temps hover and lower for awhile,then temps rise. With your fire box size and amount of coal, the blower could actually blow out the fire.