I have just started smoking. I tried getting a fire going and tried to maintain the temp. I thought while doing this I would smoke something while doing it. I got a temp of about 250 when I through the meat to it. Naturally the temp dropped while doing this. After this the temp would not stay close to constent. It went up and down about 20 deg. It was a little windy while doing this. Could that be the problem? I am using charcoal briquettes and oak. Opening the stack only let out the heat. The vents on the sidebox are open all the way.