Nearly 2.7 billion people in the world depend on biomass for cooking. Charcoal fuel is a solidrnbiomass fuel which is widely used in urban and semi-urban areas of Ethiopia. However, thesernfuels are combusted inside thermally inefficient stoves. One solution to such problem could berndesigning, manufacturing and disseminating improved stoves. Thus, this study aims atrndesigning, simulating and manufacturing an improved charcoal stove to maximize the thermalrnperformance. Designing the stove has been performed by solid work. Besides, simulation hasrnbeen performed by CFD module which is found in COMSOL Multiphysics software. Thisrnmodule includes coupled sub models representing fluid flow and heat transfer. From thernsimulation temperature distribution, velocity distribution and pressure distribution in the graternholes and on the combustion chamber of the stove were analyzed. The simulation shows thatrnthe increased temperature results in higher firepower, which leads to higher thermalrnperformance of the stove.rnThe prototype was tested using the Water Boiling Test (WBT) protocol. The simulation resultsrnwere compared and validated with experimental results. Based on simulation thermalrnefficiency obtained was 34.7%. With regard to experimental investigation, the thermalrnefficiency of the stove is 32.6% and its specific fuel consumption is 56 g of fuel/ liter of water.rnThe study showed an improvement in thermal performance of the charcoal stove. The specificrnfuel consumption of the prototype charcoal stove shows 70% improvement compared to thernthree-stone fire. Generally, the new prototype charcoal stove has better thermal performancerncompared to the previous designs proposed by other researchers. Therefore, disseminating ourrnimproved charcoal stove at a larger scale in Ethiopia will be beneficial in preservation of forestsrnand associated ecosystem services and will improve health for households.