Tried to follow advice on earlier thread I had posted and was given fairly detailed info on temp control.
First time fire up today trying to get feel for temp reg.
Started slow and worked up to 650 then down adjusting both top and bottom vents.
The started working my way down. Eventually closed top and got bottom vent very skinny and it won't go down below 350.
It was so skinny that the next touch would close it. Got to 325 and stayed.
Now I have closed all vents and unfortunately have to leave.
Doesn't seem to be going down-- if anything slightly higher.