Human development, along with other factors, is very much dependent on energy resources. To satisfy the ever-increasing need for energy, man pushed away beyond what can be carried by the environment and this is the cause of many of the problems the world is facing now. There are a number of efforts undertaken to improve the efficiency, lessen the indoor air pollution and reduce emission associated with the use of open fire stoves by introducing improved cook stoves. Mirt stove is one of the efficient stoves in Ethiopia which has got significant effort to be disseminated. But due to its high initial startup time, heavy weight, less thermal efficiency its acceptance is low.Mirt Stove has thermal and fuel efficiency of 18% -23%[15] and 33%[24] respectively. In this study an attempt has been made to increase the thermal and fuel efficiencies of Mirt stove, by redesigning more efficient combustion chamber to increase heat transfer efficiencies.This is done by constructing the wall of combustion chamber from locally available shiny sheet metal and fiber glass inserted in between the walls as insulating material. The Grate is designed and inserted in combustion chamber for smooth air flow; reduce delay initial startup of fire. In this work the wasted heat retained in the wall of stove body, disputed to surrounding by heat transfer, heat wasted through flue gas are recovered and used for baking other food staff on second designed stove. The second stove is designed in such a way that the flue gases from first combustion chamber with steam carrying copper tube passing and circulating through it.Heat transferred to the cooked food by mode of different heat transfer. We can re-use the heat to be wasted from circulation of fluid to prepare coffee, tea and wot as well to condense fluid for re- use. The performance of the newly improved stove is manufactured as prototype and tested using Control Cooking Test (CCT). The result shows the Thermal Efficiency is increased by 6.08%, fuel saving increased by 18% and cooking time decrease by 11% compared to Mirt Injera baking stove .This makes the study fruitful, can create big jobs for stove supplying, manufacturing, dissemination as well it enables the interested users to prepare Injera, Wot, Tea and Coffee just on streets corners in small hut as it is possible to make it movable. The customer can have fresh Injera with Wot or take home with in big towns. The project has power to change our mode of life in addition to the impact it has on Environmental.