I have an all wood smoker, and controlling the temp can be difficult at times. I believe you have to be carefull on how much u open the door, and how long it's left open. I open to mop or spray every hour... really fast then close it.. Mopping is the key i believe... moisture, moisture, moisture.. When i do this i can keep my smoker over 200... to 225. It is an art of what i have noticed. But you can pick up fast.. Low and Slow and have patience!!! Its not easy...lol But very fun..
Kris...... Beverly Hills ,Fl