Is it better to buy gas or electricity for water heaters?

Buying gas for water heaters is beneficial for the following reasons:

1, gas water heaters mainly have specifications of 5 liters, 7 liters, 8 liters, 10 liters, etc. This figure refers to the amount of hot water generated when the water temperature rises by 25℃ within 1 minute. Electric water heaters are generally marked with more than 30 ~ 90 liters, which refers to the water capacity of electric water heaters. Comparing an 8-liter gas-fired water heater with a 60-liter electric water heater, the 8-liter gas-fired water heater can continuously generate 8 liters of hot water per minute, and there is no limit to the water consumption. The electric water heater needs to heat a pot of water every half hour. If this pot of water is used up, it will take about half an hour. In winter, if you don't have a good grasp of the bath time and haven't washed a can of water, you have to wait for half an hour to continue washing.

2. Because the gas water heater is fast heating and has a temperature adjustment device, as long as it is adjusted to a comfortable temperature at the initial stage of use, the hot water will keep this temperature all the time. Electric water heaters are volumetric. After a can of water is heated, because the temperature is high (generally around 80℃), it is necessary to push out the heated water with cold water when it is first used, and at the same time, it is necessary to change some cold water. In the process of ejection, the water temperature is high at first, and it will gradually decrease with use, so it is necessary to constantly adjust the ratio of cold water to hot water when using.

The price of 3.8 liter gas water heater is generally above 800- 1200 yuan, and the installation cost is generally around 1500 yuan; The price of electric water heater is more than 1800, and the installation fee is generally 2000, which is more expensive than gas water heater.

4. From the perspective of operating cost, at present, natural gas is 0.48 yuan per cubic meter 1.9 yuan and per kilowatt-hour. Because both of them are used to heat water, compared with heat, the heat of 1 m3 natural gas is 10 kW, the heat of 1 kW hour electricity is 1 kW, the cost of using natural gas per kW is 0. 19 yuan, and the electricity consumption per kW is 0.48 yuan. Therefore, the cost of electric water heater is more than 1.5 times that of gas water heater.

5. If the gas quality of the gas water heater is good, it can generally be used for more than 6 years; The electric water heater can be used for about 4 years under the condition of good water quality because of the serious scaling phenomenon. With the extension of service time, the heating efficiency of electric water heater will be greatly reduced.