i just bought a 30'' mes on sale at tractor supply. today i seasoned it n started my first smoke at 3:00pm. it's set for 140 n for a while it was staying in the 140s, but it's been creeping up into mid 150s. i have a maze going n it's putting out lots of smoke, but i'd like to go to sleep without worrying about it. right now, i have the chip loader mostly pulled out n the top vent open wide. how do i reduce the heat n keep it constant? i tried narrowing the top vent but that seemed to make it hotter. now that i puled out the loader n opened the top vent it's down to 149. how can i keep it there? what does the top vent do? i can't close it all the way because i have the maverick probe wire running thru it. the funny thing is, as the outside air tem goes down, the smoker temp goes up. as i write this, i see the temp dropping, i guess because i removed the chip loader, but is that the way you operate this?