### Comparison of operating costs between natural gas boilers ...

The price of industrial natural gas is 2.9 yuan m3, then the cost per ton of hot water: 4.12 × 2.9 = 11.95 yuan Therefore, the operating cost of heating 1 ton of hot water in a natural gas boiler is 11.95 yuan. This formula calculates the gas consumption data of the natural gas boiler with a thermal efficiency of 100%.

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