jjs777_fzr wrote:Call me crazy - but the way I see it - the side air purge flaps could be used in the slightly open position to allow ~less air from under grate and thereby limiting the fire and extending the burn.
As Larry stated in his video - paraphrasing - they are meant to allow volatile gases mix with room air even if they are in the closed position. But I tend to open mine a hair crack - until I hear the air noise getting sucked in.
It's by this air sound I have been somewhat successfully setting the MPD and lower door air intake.
And yeah - please let us know how the incense smoke test plays out.
Not crazy at all jjs. That would be the same as opening the secondary "over the fire" damper in my stove and does result in a temp drop. On my old Herald last year, to get the lowest burns (or on very windy days) I would close the primaries completely, open the check valve/damper all the way in the back of the ash pit and open the the secondary damper in the feed door.