Our daily electricity consumption counting is calculated by “kilowatt-hour”. One kilowatt-hour is one kilowatt-hour. We first convert the power into kilowatt-hour, then multiply it by time. Take the above 100-watt as an example, 100-watt is 0.1 kilowatt-hour, and there are 24 hours in a day, 0.1 kilowatt multiply 24 hours is 2.4 degrees (kilowatt-hour), which can come to conclude that it is 72 kilowatt-hour in January using the same principle, and 36 yuan for one-time electricity according to five cents.

1. When renovating the waterway, we should tell our master to install an additional water return pipe. Even if there is no plan to install it now, we can prepare it in advance. Otherwise, it will be inconvenient to install the circulating system in the future.

2. The installation of backwater pipes must pay attention to that the switch of the water flow must be installed vertically upward and the arrow of one-way valve must be directed from backwater to cold water. In addition, a thermal insulation layer is added to the hot water pipe to prevent the hot water from cooling too fast because the pipe is too long.

3. If you want to save energy, you can turn off the constant temperature setting of the heated water circulator and turn it on manually. When you need heated water, turn it on for two minutes in advance. You can also make appointments at regular intervals, without the need for a full-day cycle.