EbS-P
Minister of Fire
My secondaries get more blue toward the end of the burn or when it’s burning quite hot. I have noticed that the deeper the coal bed the quicker I can turn down the primary air. If it’s a really hot coal bed and the stove top temp didn’t drop below 325 I can light off the secondaries and turn the air down almost immediately. If I’m not wanting to crank out the the heat I have found that starting the fire with two saw dust bricks on the bottom help regulate the temp during slower burn helping keep the secondaries burning longer on smaller load.
Evan
Evan