This kettle came from a recommendation of wiwfrm who recommended it to me as an easy way to have a hot coffee in the field without a thermos. It is a wood stove that uses twigs, leaves, shaveings, birch bark etc as a fire source in a cup at the bottom. The top has a waterjacket and you fill it and start the fire in the cup then you set the top on a point the draft holes into the wind and it starts to roar and go up the chimney. I started this burn with birch bark and pine needles and had a rolling boil in 2 mins. It will be a joy to use with no naptha gas or bottled gas. The chimney has enough room for coffee, sugar cup etc. so is self contained in a pouch. My limited experiance with this shows great promise and I recommend this to anyone who needs hot water in 2 mins for a cup of tea or coffee.