Not really. At idle i see about 140, during the heat call the temps drop, and continues to drop due to colder air being pulled in. You can see that when using the inkbird. You would have to go to 100 or lower to get it to stop ashing during a run. If anything, mine won't ash for the first minute then as the temp drops it starts. You would really have to be about 4 clicks to get the fire to drop a lot and stop the ashing, if it even would happen.
I still don't know how you guys are getting any runs times longer than a minute or 5. Mine is running steam and if i do get a call for heat the water in the sight glass starts jumping more and i guess the steam gets to the radiators pretty quick.
As i said, once mine starts running there is a pause, then it ashes and more than likely continues to ash until the thermostat upstairs is happy. With the inkbird, you would have to have hot coals ready to be dumped into the ash pan for it to stop ashing. Think i am at 110, after a call for heat it does climb back up but highest i have seen yet is 140.
Yes that fire looks too high, need to turn your anthrastat higher, maybe 5 degrees. You need 2 clicks, maybe even 2.5 or 3.