Abstract: Microwave ovens are designed primarily for heating and cooking food, providing an exhaustive exposure to electromagnetic radiations in the microwave frequency range which may varies from 900–2450 MHz within which it is commonly referred as an electric oven. Vacuum tube also called magnetron is of the three main component of a microwave oven which generates energy that heats food. The rapid heating of food in oven is possible by the power provided by the vacuum tube inside it. To do so, microwave oven emits two types of EM radiations, microwaves and low frequency radiations. Among which low frequency radiations contribute effectively to power the magnetron. This energy delivered is directed to the food with the help of a wave guide hidden in the wall. The chamber holds the food safely. Microwave oven heats food quickly and more efficiently. The energy consumption of microwave must have been so close to meet the monthly expenses of the common people that they could hardly fail to meet the utility bill. So a new system is inscribed in this paper by evaluating the energy consumption , economic growth and carbon emission. Additionally energy conservation measures for an oven is also analyzed.