There are many high-rise buildings. It may be acceptable to install solar on the roof to provide water to the 4th floor, no matter how high it is, it will be difficult to provide hot water in winter.
1: You have to bring people together every night. Take showers together, as they are not on the top floor, so a lot of cold water has to come out of the water pipe before the hot water comes out.
2: Cloud cover average throughout the year is thick, humidity is high, and there is more precipitation throughout the year. After being blocked by clouds, the amount of sunlight remaining is less; there will be almost no sunlight on rainy days. It's even more miserable when it rains. Although it can be heated, it's basically just cold water after washing two people.
3: When you get up in the morning, you must make boiledr hot water to brush your teeth and wash your face. Do you want to get a basin of cold water so that you can use hot water to wash yourself. your face ?
4: There is also a shower during the day in winter. I always want to use cold water on my hand to think about how painful it is. . . The electricity bill saved is not enough to pay the water bill every day.
Compared with solar power and air power of the same quality, air power is slightly more expensive by about one to two thousand.
In terms of heating capacity, solar energy is affected by sunlight and air energy is affected by temperature. However, in general, the heating capacity of air energy is more stable and durable and can be heated cyclically.
In terms of lifespan, based on the same quality, the lifespan of solar energy is approx.n 10 to 12 years old. It is affected by bad weather (such as strong winds, hail, etc.) as well as use and maintenance. , the lifespan of air power is 12-15 years left and right, affected by water quality, usage and maintenance.
If the air can be used by 7 people, each person will use 50 L of hot water, the ambient temperature is about 20 degrees, and about 4 to 5 kilowatt hours of electricity will be used per day , and the electricity bill will be calculated based on the local electricity price. Overall, there are pros and cons to each.