What is the low cost of electric water heater and gas water heater?
2, look at the price of natural gas: a cubic meters of natural gas prices, the country is generally between 1.3 - 2.6 yuan / cubic; and 8 kwh of electricity price should be more than 4 yuan (the price: 0.5 yuan / kWh), both a gap is established.Therefore, compared with gas water heater, the utility model has the advantages of lower cost and lower cost.
According to the mechanical equivalent of heat: 1 card =4.2 joule;According to the definition of power: 1W (W) = 1 J/S (joules / sec;From the above two formulas can be drawn that one side of natural gas combustion after the corresponding power is: 8000 (or 8500), *1000*4.2/ (1/3600), =9.334 (or 9.917) kW / hour, equivalent to 9.334 degrees of electricity generated by energy;
Gas water heater costs low,1, usually the calorific value of the gas is 8000 - 8500KCal (kcal, kcal) / cubic meter, that is, a cubic day of gas combustion can release 8000 - 8500KCal of heat.
