Comparison of operating costs between natural gas
2021-5-6 · We calculate the operating costs of both according to the heat required to heat 1 ton of water from 15 ° C to 50 ° C. A total of heat Q = 1000 kg × (50-15) × 1 kcal kg ° C = 35000 kcal is required. First, the operating cost of electric boiler 1 degree electric heat is 860kcal kWh × thermal efficiency 90% = 774kcal kWh;
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