You will need
  • Gas meter, gas calorimeter, the ratio of gas consumption.
Read the gas meter. Record your measurements on the used container. To see how much energy you have consumed, you need to multiply the readings on the caloric value of the fuel. Natural gas is a mixture of propane, butane and other compounds. Therefore in different regions of the specific heat of a cubic meter of it can range from 7,6 thousand to 9.5 thousand kcal. According to the order of the Federal tariff service, use a value 7900 kcal for gas produced by Gazprom. For bulk purchases provides for the allocation in case of deviations from the norm.
Translate calories into larger units. Giga-calorie is 10 to the ninth power of calories. Or a one with nine zeros. If you have consumed 1,000 cubic meters, taking into account possible fluctuations in the calorific value of the gas, you should be able to 7.6
Of 9.5 Gcal. But such a substantial consumption for residential buildings with individual boilers do not tend to. Accordingly, the owner of the cottage will only be paying for some part of Giga-calorie.
Use the gas calorimeter for the accurate determination of power consumption of blue fuel. It is reasonable to do this if you have large amounts of consumption. Manufacturers of such devices are focused on large enterprises in the energy sector, ferrous metallurgy, oil refining etc. He is required not only for payments but also for the optimization of the ratio gas-air in heating burners and to manage large gas flows.
Swipe a rough calorie consumption of gas in the absence of the appropriate metering device. In this case, you will be billed the fee at the rate that represents the amount of fuel set for different types of consumption. Multiply this value by the average, the calorific value in the 7900 kcal/m3. Get the amount of energy used.