The reason I mention it is because mine was not in all the way. I brought it back to the dealer where I bought it and he picked up on that pretty quick (it was maybe 2/3 the way in). I stopped by there on my lunch hour today and we chatted. He was using about 1/2 to maybe 2/3 the amount of coals I was using. Anyway, I saw the temp with the amount of coals he had, as well as the damper setting. 250F. I had a full bucket of coals solid red, and the damper a little more open than he had at 250F. Also, my smoker box lid was warped open at 250F. He had 250F and the smoker box lid was not warped, it sealed tight (which baffled me). So that got me thinking:
My smoker box had to be VERY hot for the lid to warp open a bit. Probably 400F or hotter, yet it only reported 250F. The temperature was being measured from outside and inside the smoker box. Who knows what the internal temperature was, but it was HOT. To give you an idea, I smoked a 9lb butt in 6 hours. After 3-4 hours the internal temp was 150F and I wrapped it and at 6 hours it was 195F internal temp. My dealer said a 9lb butt takes him ~9 hours at 250F. Mine read 250F, but I was clearly hotter. In fact, I was never really able to get a reading over 300F. I can only imagine how hot the smoker box really was when it read 300F.
My temperature appeared to fluctuate a lot. It could have been the exterior part of the thermometer that was affecting this, that is my guess. My dealer got a good consistent temperature and burn today, exactly how good I'll find out tomorrow.
Now that leaves a different issue that I still don't know how to explain, why the right side of my coals just die, even when they are all glowing red. I'm not an expert, but I'm wondering if it's possible to use too much coal? Is it possible that it's smothering itself? I'll have better answers tomorrow after talking to my dealer to find out if his cook on my grill burned even. If it did, I'll know I need to use less coals.
I'll update you tomorrow. John - Also, is there a chance your thermometer is damaged? With a decent amount of coal and your spinner settings and the damper nearly full open, you should be way above 225F even with meat on the grill. Remember I cooked a 9lb butt in 6 hours at a "reported" 250F. It should have taken 9 hours. If my math is right, that means I must have been running about 375F? That is, assuming the temp vs. cook time is linear. You could try a butt, and assume the one pound/hour cook time at 250F. If you're cooking in less time than that at a reported 250F, chances are your thermometer could be bad. thoughts?