This is the kind of stove woks are made for. The heat is
intense, close to the wok, and the highest heat is in the center where
it belongs. This is almost impossible to achieve on a North American
home stove. Burning charcoal is place in the top. Ashes fall through
the holes and can be shoveled out through the door. There is enough
space to get more fuel in without removing the wok.
The stove in the photo is a medium sized one, 11 inches in diameter. I found I have a round iron grate that just fits this stove, quite convenient since this stove can be used for grilling as well as wok cooking. A grill basket could also be used.
More on Kitchen Equipment.