Tremendous amount of research has gone into making of improved stoves with superior cooking efficiency and no or less smoke; almost all these innovations follow the basic design of the ROCKET STOVE invented by Dr.Winiarski of Aprovecho.The salient features of the design are-
1.complete burning of the wood is achieved by providing for adequate air supply into the combustion chamber;proper burning of wood reduces or eliminates smoke.
2.By providing good insulation to the combustion chamber loss of heat is prevented.
3.The heat is efficiently transferred to the vessel/pot by providing a skirt round the vessel.
these details are presented in the figure in the next posting.