Can be calculated by formula. According to the relevant public information request, the water flow of the wall-mounted boiler can be calculated by the formula: 1KW (power) is equal to 860Kcal divided by h (heat). Wall-mounted boiler is the abbreviation of gas wall-mounted boiler, and its full name is gas wall-mounted heating boiler. This is a water heater using natural gas as energy. It has anti-freeze protection, anti-drying and accidental protection. power off protection, overheating protection and anti-seizing protection of water pump and other safety protection measures.
First of all, it makes sense to determine the temperature of the tap water.
Suppose the temperature of tap water is 25℃ and it is heated to 90℃, then the temperature difference is 90-25 = 65℃
The specific heat capacity of water is 4.2x1000[J/Kg·℃)]
65 times 4.2x1000[J/Kg·℃)]=The quaamount of heat required to heat a kilogram of water from 25℃ to 90℃ (ignoring energy loss, i.e. under ideal conditions) = 273KJ/Kg
One kilowatt hour of electricity = 1KW·h = 3600KJ
3600/273=13.20Kg, this is the answer
As for the quantity needed, the time depends on the quantity of water that you boil. Suppose you want to boil n kilograms of water, then
9KW=9KJ/s
273×n÷9=30.33×n seconds
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The calculations above are all theoretical. In real conditions, the energy loss must be taken into account, that is, the boiling speed of water is slower than calculated. or water boiled by one degree of electricity is less than calculated.
Purely hand-made, I hope you can adopt it~~~~~