ok,I cut the gasket for the air wash,and it's 100% better.thankyou for all the help on this stuff.
Now the only thing I don't like is that it adds pellets when you shut it off,after all fans shut down,pellets drop in.Then when you start it up it adds more,filling the burn pot almost to the top.Even with it set on heat range 1.Then you have this roaring fire when it first starts up.
Is this a design flaw in the circuit?
Seems weird to me,that it would add pellets at the end,and at startup.Is opening the lid before shutdown the only way to prevent this?
I tried asking the factory,and no one responds at all to emails I guess.Not even to the question about the use of a external t-stat.But I guess adding all these extra pellets at shutdown and startup with a T-stat,could be a real problem.
I suspect that the pellets added at the end are for safety, this would purge the feed auger in case any hot pellets are at the end of the auger preventing burn back into the hopper.