Improving a home's energy efficiency allows the reduction of biomass consumption and therefore human pressure on forests and improves users' health. This work aims to highlight the performance of an improved cooker based on the protocol of a water boiling test (WBT) said advanced. A suitable charcoal or firewood type is tested with wood from the
province of KADIOGO, Burkina Faso. The tests took place for a month using pot number 3 with the presence and absence of its lid. The energy lost by the openings, walls, and fumes of the Cook Stove is 73.01%. The thermal performance is estimated at η = 26,99% and a maximum cooking time of 40 minutes. The improvements of this Cook Stove made it possible to achieve a gain of 10% unlike three-stone fireplaces generally have yields of about 20%. The result shows that an optimization of the cookstove that can reduce the openings is possible. The study will continue with the development of a digital method to propose a cook stove with optimal energy performance.