I had a kettle as my only BBQ cooker for over a decade, once you get a method down they are a great cooker. There are more than one way to set them up. Here's the way I do it. I use bricks or rocks to keep the coals where I want them, usually about 1/4 to 1/3 of the area. Depending on how long the cook and how large the meat is. I fill that area up with kbb and mix a few wood chunks in, then about 15-20 lit coals spread out on top. I do use a water pan under the meat which I mostly cover with foil and leave open where I can direct the steam away from the meat. Vents open until my therm shows about 200, then the meat goes on and I close the bottom vents 2/3 of the way, when temp is up around 225-250 the bottom vents get closed almost completely and the top vent closed about half. Will hold 250-275 for 4 or 5 hours, sometimes a bit more depending on outside temp and how well I managed my vents. Get a hinged grate and leave it open so you can toss more coal or wood in, or knock ash off the coals without taking the lid completely off. I use an oven thermometer next to the meat to monitor temps, face it so you can see it by just cracking the lid slightly.