Natural gas is cheap, let's take 5 liters of water as an example, that is to say, water needs to be burned from 0 degrees Celsius to 100 degrees Celsius. From this, it is calculated that the heat required for boiling water is 500 kcal.
The price of natural gas per cubic meter of 3 yuan, we need 500 calories. Then we divide it by 36,000 and multiply it by 0.9, and the result is 0.0 125, that is, it takes 0.0 125 natural gas to burn 5 liters of hot water. Then we multiply the price of natural gas by 0.0 125, which is equal to 0.0375 yuan.
One kilowatt hour is about 3,600 kilojoules, so the electricity charge is 0.6 yuan per kilowatt hour. If you need to heat five liters of water, the required degree is about 0. 13 degrees. We multiply the electricity of 0. 13 kwh by the price of 6 cents per kwh, and it is about 0.078 yuan, which is the cost we need to burn five liters of hot water with electricity.
Extended data
In order to avoid danger, experts advise people to actively learn the correct knowledge and methods of gas use and be familiar with the following six principles.
First, after using gas, be sure to turn off the stove switch and gas pipeline valve at the same time;
Second, always check whether the hose joint is fixed with clips and whether the hose is aging and cracked;
Three, long-term use of gas must be ventilated;
Four, found the smell, immediately open the doors and windows, and promptly call the gas company to report the leakage;
Five, gas appliance must be used in line with national standards, and infrared cookers are strictly prohibited;
6. Please read the gas safety propaganda content on the back of the gas purchase invoice carefully.