Biolite Stove - It use runs off of foraged sticks and branches. It uses the heat generated from the fire to run it's own fan. It can also run LED lights, charge phones and tablets. As well as the obvious cook your food. The stoves fan increases the cooking speed & distributes the heat.
It's a genious little stove and works really well.
You can cook with pans directly on top of the stove, when not using grill. The kettle pot can me used to make tea or cook other food, in a similar way to a pan.
It just runs off of sticks and chopped branches.
The fan has two speeds, high and low. Low is best when the grill is being used or it burns the food. If the fire starts to die in the stove, switching the fan to high, quickly gets the fire going again. Using small twigs to restart the fire from glowing embers reduces the amount of smoke it produces.
They are not cheap, but a really clever bit of kit. I love it!