Electricity for roasters saves money compared to gas. The calorific value of natural gas per cubic meter is 8,500 kcal, and the energy that can be converted per kilowatt-hour is 859.8 kcal. That is to say, the heat emitted by the complete incineration of natural gas is about 10 times (9.88 times) the electricity converted into heat.
Regardless of whether natural gas or electricity is used in the home, there is a problem of thermal efficiency, which means that not all natural gas is burned to heat water, but also to heat air and dissipate heat. The same is true for electricity. Generally speaking, the thermal efficiency of general gas stoves does not exceed 70%, and considering the environmental issues in operation, the actual thermal efficiency is about 50%. The thermal efficiency of electricity is much higher. For example, the thermal efficiency of induction cookers is more than 90%.
Considering the heating time, the gas needs to be heated first. After adding the nuts, the temperature decreases. It still needs to be heated up to maintain the temperature of the frying. Compared with electromagnetic heating, the heating is faster, the temperature is relatively constant, and the heat radiation is small. In the case of 5kg of sunflower seeds, gas cooking takes about 45 minutes, while the electromagnetic roaster only takes 15 minutes to complete.
Comprehensive comparison, electromagnetic roasting machine is efficient, energy saving and save energy costs
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