A Thai stove
Charcoal – well sifted. Larger pieces work best, fine charcoal tends to clog the air-flow.
Waxed corrugated cardboard for kindling – as used in boxes for lettuce, broccoli, nursery pots etc.. Cut pieces approx 10cm square with a knife, then tear them up to burn more easily. I like to tear the layers apart leaving a strip still joined, then make a couple of tears through the layers. Other kindling can be used, such as oily paper or eucalypt leaves.
A fan to blow the fire. A concertina bamboo and cloth fan is ideal, but a piece of cardboard about 30cm square works well enough.