Solar water heaters have so many advantages, why is it difficult to popularize in today's cities?
There are many types of water heaters on the market, including electric water heaters, gas water heaters, air energy water heaters, and solar water heaters. According to the needs of each family, choose suitable water heaters. In cities, the popularity of electric water heaters and gas water heaters is very high. Solar water heaters The domestic production also has a long history. It is difficult to see in today’s cities. Most of them are installed in relatively old communities. Although some communities have installed unified solar water heaters, they have been dismantled by users. .
What is a solar water heater?
Our common solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters. The working principle is to absorb sunlight through vacuum tubes and collectors, and then convert light energy into heat energy, and then transfer the heat energy to the water tank for heating. The tap water in the water tank is raised from normal temperature to high temperature to satisfy people's use of hot water in daily life.
What are the advantages of solar water heaters?
High energy saving
The main energy source of solar water heaters is sunlight. In areas with sufficient sunlight, it can fully meet the domestic hot water volume and temperature requirements of the family. In terms of energy, it uses renewable energy. As long as there is sunlight, it can be For the conversion of solar energy and heat energy, our solar illumination is inexhaustible, but in the winter illumination period and when the illumination is not strong, it is also necessary to use part of the electrical energy for auxiliary heating, but the contrast is complete Electric water heaters that rely on electricity are more energy-saving. Compared with gas water heaters, natural gas is not used, which can save a lot of money in energy consumption.
High energy and environmental protection
In the water heaters we know, the main heat source conversion needs to rely on natural gas and electricity, while the main heat source of solar water heaters is sunlight, no harmful gas emissions, no pollution to the environment, although a small amount of electricity is used, Electricity is also a clean and renewable resource. Therefore, solar water heaters are very environmentally friendly and will not release more heat into the atmosphere and increase the greenhouse effect.
High security
In terms of installation location, solar water heaters are installed on the roof in many places, and some are suspended in places where people cannot touch them. This makes it difficult for people to access solar water heaters and avoid electric shock problems; from an energy point of view, relatively For gas water heaters, there is no emission of gas pollutants, carbon monoxide poisoning caused by insufficient combustion, and no gas flash explosion hazard. In terms of service life, the service life of solar water heaters is more than 10 years. Normal maintenance can basically be used for more than 15 years, while the life of electric water heaters is 8 years, and the life of gas water heaters is 6-8 years. Even if these two types of water heaters are maintained, the internal parts are also prone to aging, and they can be used beyond the limit. It is easy to produce safety accidents.
Small geographical restrictions
With the continuous improvement of living standards and economic levels, power resources have basically been popularized, and natural gas resources are still in the process of popularization. However, some remote mountainous areas, islands, and even rural areas where transportation is not convenient, electricity use is more luxurious and even more expensive. Not to mention the use of natural gas, these areas still have the premise of underdeveloped economic conditions. The use of electricity and gas are consumables, and some people cannot afford the cost of electricity and gas. If solar water heaters are installed in these areas, you can To solve this problem to a large extent, once you invest, you can pay back after 2-3 years of use, the invested funds can be quickly recovered, and the quality of life can also be improved.
Why is solar energy difficult to popularize in cities?
Awkward installation location
The characteristic of solar water heaters is that they are relatively large in size and need to install heat collection vacuum tubes or heat collectors. For users on the top floor, they can be installed on the roof, but most high-rise residential users will be far away from the top floor. The cost of installation across floors is high, the heat loss is large, and the The influence of neighbors is relatively large. If installed on your own balcony, it will take up the space of the balcony, block the light of windows or sliding doors, and fix it on the wall. You also have to worry about safety issues after a long time of use, especially frequent scratches. Location of the gale
Sunlight time limit
The main heat energy of solar water heaters is sunlight. Urban buildings are characterized by tall buildings, and the distance between the buildings is relatively close. The time of sunlight is blocked by high-rise buildings, especially the low-rise residents who can have a few hours of sunlight at noon. It’s already pretty good. However, the water heating of solar water heaters requires long-term sunlight. If the sunlight time is not enough, it is easy to cause the water temperature to fail to meet the household’s hot water requirements. It greatly affects the heat conversion of solar energy. During the continuous rainy season, there is no sunlight for a long time, and electricity can only be used to heat hot water. Therefore, the time of sunlight is very important for solar water heaters.
Long-term hot water supply is not cost-effective
Just mentioned the influence of sunlight time on solar water heaters. Short-term light is difficult to meet the increase in water temperature of water heaters. This requires auxiliary heating through electric energy. However, the corresponding energy consumption of using electric auxiliary heating will also increase. For users who have relatively high requirements for hot water at home, the 24-hour hot water provided by pure electric water heaters and gas water heaters can better meet the needs of users.
Aesthetics and maintenance considerations
In urban planning, both residential and commercial entities must be declared. The installation of solar water heaters will undoubtedly destroy the appearance of the housing, and also test the quality of the housing. The final building structure will affect the overall image of the city, and the owners of the community will partially install and partially dismantle the housing. , It will also affect the image and quality of the entire community, and the key is that the installation locations are basically outdoors. Many locations are in places that are not easy to operate. The maintenance is troublesome, resulting in high maintenance costs.
Summarize
In essence, solar water heaters use renewable clean energy and have no emissions of pollutants. They are basically a one-time investment and cost-free hot water equipment. They are relatively mature in quality and technology. However, they will be affected by the installation location, Solar water heaters are suitable for rural and low-rise residential use due to the limitation of light conditions and hot water demand. For high-rise cities, many restrictions make it difficult to popularize solar water heaters in cities. The development trademark is equipped with solar water heaters. In the later decoration and use process, many users will remove them, and then install electric water heaters and gas water heaters to replace them.
Oem solar water heater
Corrosion-resistant
Resistant to dust and dirt
Extremely durable
Quiet running
Easy installation
Longer life
