I have a 22.5 inch Weber kettle (which has been awesome) with the one-touch system. It's a newer one with P shaped bottom vents
I keep running into a bit of an issue when smoking low and slow. I am using two Weber charcoal baskets loaded with unlit charcoal and smoking wood. I put one on either side of the BBQ, and a drip tray with some water in the middle.
I start a small amount of charcoal in a chimney, and place it on top of each charcoal basket, and both baskets proceed to light, temperature stabilizes, meat goes on,so far so good...
About 2 hours into the smoke I find the one basket has gone out with lots of unburnt charcoal, and the other is nearly or entirely used up. I will then have to light more charcoal in the chimney and work frantically to get snuffed out basket going again without getting ash everywhere or letting things cool down too much.
Each basket has about the same amount of charcoal and wood in it to start, and gets about the same amount of lit charcoal. I position them so each has an open vent under it, and the third is in between them.
What am I doing wrong?