Why is heating in the north so expensive? Why not turn on the air conditioner to keep warm?

This question really fulfilled the poem Xilin Wall written by Su Shi, a great writer in the Song Dynasty: "Looking horizontally, the mountain side becomes a peak, and the distance is different. I don't know the true face of Lushan Mountain, but toward which corner of the mountain. " As far as the climate temperature difference between the north and the south of China is concerned, there is little difference in summer, and it can be said that there is a big difference in winter.

It is also winter, that is, when it is freezing in the twelfth month of the Central Plains and it is snowing everywhere, people are wrapped in cotton-padded clothes and trousers, and chickens and ducks are frozen to their feet. Sanya, Hainan Province, located at the southernmost tip of the motherland, is still a lush landscape, and the temperature is still around 20 degrees. Mohe River in Heilongjiang Province, located in the northernmost part of the motherland, has long been a world of ice and snow, with a temperature of MINUS 30 to 40 degrees.

In the past, when the economic development had not reached the condition of central heating, it could be said that every family lit cigarettes in winter in both urban and rural areas, and cigarettes were everywhere. In order to solve the problem of heating, people have to burn coal, cut wood and plant straw to keep warm.

In the era of planned economy, the state clearly stipulates that the Yellow River is the boundary for heating in winter, and heating facilities are allowed to be built in the area north of the Yellow River in winter, whether in urban or rural areas. In the vast area south of the Yellow River, heating equipment is not allowed in winter. Taking Henan Province as an example, Zhengzhou City and Xinxiang City are located on the north and south banks of the Yellow River. Although Xinxiang is a provincial area, located in the north of the Yellow River, it is allowed to build heating facilities in winter according to the policy. Zhengzhou, as the capital city, has no such welfare.

After entering the 2 1 century, the reform and opening up has been going on for more than forty years. According to Scientific Outlook on Development's thinking, the vast urban and rural areas north of the Yangtze River and south of the Yellow River can set up central heating facilities in winter according to market rules. Although the heating price and the expectations of the people still have a lot of room for adjustment, since the price department has approved it, everyone has passively accepted it.

As for air-conditioning heating, there is not much problem in winter in Jiangnan, and it will not work in the vast areas of Huanghuai. Household air conditioners have low power, and once they are stopped, the indoor temperature will drop immediately. Youyou may be a southerner, but he only knows one aspect of the northern climate and doesn't know the other. Coupled with the rising global greenhouse effect in recent years, it is true that we have never encountered extremely cold weather.

I happen to be a northerner, and because of the developer's reasons, the new house has no heating for 7 years, and the air conditioner has been on for 7 years, so I want to talk about it with my own experience.

I lived in this residential area for 20 13 years, and the developer promised to provide heating after 1 year, but it has not been provided so far. Fortunately, I bought one big air conditioner, two small air conditioners. But in the north, heating with air conditioning does not taste good.

First of all, this heater is water heating, which does not cause rash and makes people feel comfortable; However, the air conditioner is too dry and cold in winter in the north, and the comfort of people who use air conditioner for heating is much worse.

Secondly, central heating for 24 hours, several rooms are the same, you can walk comfortably; With air conditioning, it is impossible to fully open three rooms and one living room. If the air conditioner is turned on in the living room during the day, the doors of other rooms need to be closed, which is very cold, inconvenient and uncomfortable. And turn on the air conditioner in the bedroom and turn off the air conditioner in the living room at night. It's too cold for you to go to the toilet or something.

Most importantly, the outdoor temperature in the north can be as low as MINUS ten to dozens of degrees in extremely cold season. However, the thermal efficiency of air conditioning heating will be greatly reduced after the outdoor temperature is MINUS five degrees. I have a deep understanding of this. When the outdoor temperature is below zero 10 degrees, the air conditioner won't stop at all, but it can't reach a comfortable temperature if it is kept on indoors.

As for central heating, why is it so expensive? Because it is a systematic project, and heating itself is not as profitable as power generation, and it is an expensive investment from heating to pipeline maintenance, to the thermal pressurization station in the community and to the users.

Heating is only one-third of the time every year, but the facilities still need to be maintained after stopping, and because the treatment of public services is rich and there are more people, these are all expensive reasons.

So I want to say to the subject: although the cost is high, I still want to use heating instead of air conditioning, but I can't do it myself. A household needs 27,000 yuan for heating, which most people can't afford.

We calculate the cost according to an 80-bedroom apartment. The air conditioner reaches a heating temperature of about 26℃, and it heats all day from 6 pm to 6 am.

First look at the cost of air conditioning: 1 3 air conditioners with a heating area of 30-40, the price fluctuates between 5000-8000. First of all, the living room can meet the demand. A 1.5 air conditioner in the bedroom can heat 15-20, and the price fluctuates around 3500. A normal two-bedroom apartment needs at least two 1.5 air conditioners and 1.3 air conditioners.

The purchase cost is about 12000. Depreciation is calculated according to 65,438+00 years, with an annual amortization of 65,438+0,000 yuan, which is basically five months in northern winter, that is, amortization of 400 yuan.

Electricity fee: 3 air conditioners consume 2-3 kWh of electricity for heating every hour. According to the median value of 2.5, it is calculated as 12 hour from 6 o'clock every day to 6 o'clock the next day, and the daily opening time is 30 kWh. The electricity charge for civil electricity in China is basically 0.56-0.62 yuan per hour, calculated according to 0.6 yuan, per day 18 yuan.

The heating power consumption of 1.5 air conditioner is about 1.7 degrees per hour, which is the same as 12 hours. If you calculate, two air conditioners will need about one day's electricity, and 25 yuan will be needed.

In other words, the electricity cost of three air conditioners is about 43 yuan for one day and about 1290 yuan for the whole month. The heating in the north will last for five months from the middle and late period of 1 1 to the middle of April next year, so the air conditioner needs at least 6,000 yuan (not 24-hour heating), and the depreciation cost of air conditioner is equivalent to 6,500 yuan.

In the northeast where the winter temperature is coldest in the north, many places can easily reach MINUS 30 degrees, and even the extremely cold weather can reach nearly MINUS 60 degrees. In fact, the heating effect of many air conditioners is negligible.

As for the heating fee, the fees vary from place to place. The heating time in the north is basically about 5 months, like Daxinganling area, which has reached nearly 8 months.

Houses are roughly between 20-40 yuan per square meter, so let's sort out the heating prices in several northern cities. The northernmost Mohe and Daxing 'anling Mountains are only in 28 yuan /m2. According to the most expensive 38,80 square meters collected in Harbin, it costs more than 3,000 yuan.

In contrast, the price of central heating is at least half that of air conditioning. The most important thing is that you turn off the heating of the air conditioner, and the temperature will soon dissipate. In the north, you need vest shorts to breathe, open the window for ventilation and eat ice cream to cool down.

As a southerner, I can't understand why heating in the north is so expensive, because the temperature in the south is different from that in the north. For example, in Shanghai and Zhejiang, the temperature is three or four degrees below zero in winter. I've been here 10 years, and it's MINUS seven degrees a day at the coldest time. The coldest month is basically between MINUS three degrees and above five degrees, so you can turn on the air conditioner to keep warm. The temperature can also reach a more comfortable temperature for people. But it is impossible to wear a thin coat indoors.

My hometown is in a county town in the eastern mountainous area of Jilin Province. The county town provides central heating, and the heating fee is 28 yuan per square meter. The heating period is from the end of June 10 to April of the following year 15. Sometimes the weather is too cold, so you can heat it 8 days in advance 10 days. Why do we have to provide central heating? Because it's colder there. Generally speaking, it is basically below zero in winter, 20 degrees below zero to 30 degrees below zero at night, and 7 degrees below zero to 10 degrees during the day. This is a normal year, and extreme years sometimes reach MINUS 4 1 degree. I'll be right back when I'm out. In the past, our house was 50% wall, but now it is multi-storey and generally 40% wall, and the upper floors are thinner. At this temperature, the chill from the wall to the room is very serious. Heating by air conditioning simply can't meet the standard of heating. Some families have installed air conditioners, mainly cold air conditioners in summer. Some families don't need heating because they go to the south for the winter. When they go back to their hometown during the Spring Festival, they think that using air conditioning can solve the problem, but turning on air conditioning can't solve the problem at all. It is not that northerners are willing to use central heating, but that central heating must be used in cold weather. Theoretically, the indoor temperature should not be below zero 18 degrees. The indoor temperature of newly-built buildings reaches 28 degrees, and northerners are very comfortable with central heating in winter, especially the elderly in central heating buildings, which can be said to be full of happiness.

The heating price in the north, my home is 28 yuan per square meter, which may be the medium standard. It is estimated that the heating time in some parts of Heilongjiang Province may exceed this standard. It is estimated that the heating time in Liaoning province is shorter than that in Jilin province, and his heating cost may be lower than this standard. My home 100 square meter, the annual heating cost is 2800 yuan, and we think it is well spent. Heating with air conditioning can't reach this temperature even if it costs 8,000 yuan, and the heating cost of 60 square meters in some families is even less, so the heating cost is not a big problem for residents. The biggest question is whether the temperature is enough. On the issue of temperature, it is often the focus of contradiction between residents and heating units. In recent years, the heating situation has been greatly improved. The contradiction between residents and heating units has been greatly reduced, and everyone still enjoys the benefits of central heating. So what if we don't need heating at home? Every year from the beginning of September to the end of September, at this time, you should apply to the heating unit to stop heating. After the application is approved, someone will cut off the pipeline for you. I don't have to spend money myself. If the short-term cost of heating unit is 50 yuan, I need parts above 10 yuan. In addition, I need to pay 20% storage fee (custody). You'll know the exact number. This must be paid. If you don't pay, you won't resume heating in the future.

Speaking of which, some people may ask what is going on in a house with heating. Well, if you are a new building with unobstructed pipes, the indoor temperature can reach 28 to 30 degrees during the day, and you can wear light clothes indoors, just like spending the summer. Don't cover the quilt at night. In some buildings, the old pipes are not smooth and the situation is poor, generally around 20 degrees, and a thinner quilt should be covered at night. It's also very comfortable. Compared with air-conditioning heating in the south, it has incomparable advantages. So many northerners are afraid to spend the winter in the south. They have air conditioning and heating, but they also feel cold, especially the temperature is different. So central heating in the north is superior, but it can't be compared with air-conditioning heating in the south. Only when you live in a house with heating in the north will you feel this way and know its benefits.

After years of transformation, the waste heat of power plant is basically used for heating in the north. This kind of heating is a 24-hour hot water cycle, so the indoor temperature is relatively balanced, and it is basically constant temperature, which is good for the health of the elderly and children. Unlike air-conditioning heating, the air-conditioned room will cool down immediately when it is stopped. Because of the cold weather in the north, few people don't need central heating in winter. Everyone uses heating to keep warm. Basically, the walls and the top and bottom are warm. Most of them are just cold walls on the north side, and sunlight can enter the south side during the day. In this way, because everyone uses heating to keep the room constant, I don't need heating when I come to the south to see my children's homes. Neighbors have opinions and feel unhappy. I don't need heating because I have money. Most importantly, if the heating pipe leaks, it will cause losses to the downstairs. Because the tap water upstairs in my house caused great losses to my home three years ago, in order to ensure safety, I had to suspend central heating. This is because many northerners go to the south.

I made a description of central heating in the north, which can give netizens a general understanding. It is not because I am from the north that I say that central heating is good, because I have lived in both the south and the north, and there is obvious contrast effect, so the conclusion is that central heating in the north is really much better than air-conditioning heating, and it is not suitable for air-conditioning heating in winter in the north, because air-conditioning heating can not reach the required temperature at all, which is the actual situation in the north.

As a northeast person, let me help you to answer the pros and cons of central heating! Question 1: Is the heating cost of 3000 yuan expensive? The answer is not expensive. Take Shenyang as an example, enterprises and institutions reimburse 26 yuan/m2. If it is not reimbursed, the price is 23.3 yuan/m2, and 3,000 yuan is equivalent to 1 15 ~ 128 m2. Six-month daily average heating period 16.7 yuan, with 24-hour temperature guaranteed 128. According to the energy consumption of 1P air conditioner covering an area of 20 square meters and 6P air conditioner heating for 24 hours 1 level, the lowest electricity consumption is about 60 degrees, and the lowest electricity consumption price is calculated in 0.5 yuan, which is much higher than the average price of central heating 16.7 yuan.

Question 2: Will central heating cause environmental pollution? The answer is also no, most areas in the north are dry and lack of rain, and thermal power generation is usually used, which requires a lot of water to cool down to avoid overheating of the generator set. Therefore, hot water is an additional product, but the fees charged by heating enterprises are also very reasonable. The installation and maintenance of enterprise pipelines, the construction of pumping stations, the increase of generator operation, etc. Central heating increases coal consumption and filtration system reduces the emission of sulfur and other pollutants. Compared with simple power generation, it will not increase pollution.

Question 3: Is there a big temperature difference between the north and the south? The answer is very big. It snowed twice in Harbin in June 1 1. There is no green vegetation in Shenyang, while Jinan in spring wears autumn clothes at most, and young people in Shanghai wear short sleeves. China has a vast territory and a great span. Qinling Mountains and Huaihe River block the north-south airflow, which makes the temperature difference between Shanghai and Harbin reach more than ten degrees. Southerners feel cold and humid in winter, and the winter in the northeast can be "dripping into ice" at MINUS 20 or 30 degrees.

Conclusion: There is no need to be surprised by the cultural differences in different places. Sichuan and Hunan like to eat spicy food to get rid of moisture, Jiangsu and Zhejiang are popular for drinking tea to relieve dryness and clear heat, and the Central Plains is dominated by pasta, all of which are special ways formed in specific environments. Central heating in the northern region is also a symbol of urbanization, which brings comfort and convenience to local people. Maybe you will love this way after you have experienced it.

Southerners don't understand the cold in the north just as they don't understand the darkness in the day and night. I can tell you that if the air conditioner is below 0, you can't heat the room through refrigerant. Therefore, in the north, air conditioners are used as heating wires, and it is still a waste of electricity to keep the outdoor unit working. It is not practical for indoor heating and the thermal efficiency is extremely low. It is better to use electric heating directly. In addition, heating with electricity is 0.5 to 2 times that of 65438+ heating, which will be blown dry. With air conditioning, 6000 electricity bill can't reach the effect of 3000 central heating.

There may be many reasons, but one thing is crucial: air conditioning is not as effective as heating!

There are two main reasons for the poor heating effect of air conditioning: from the working principle of air conditioning, when heating, the outdoor heat is transported to the room. Think about it, indoor heating is needed, and the outdoor temperature is bound to be lower, so it is difficult to get heat from it. From the way of heat transfer, air conditioning should first transfer the outdoor tropical to the condenser, and then the condenser to the indoor air. There are three ways of heat transfer: conduction, convection and radiation. Air is a poor conductor of heat, and its heat conduction is slow; The condenser has limited volume and surface area, so the radiation heat dissipation effect will not be very good because of the shielding of the shell; However, air mobility is good, and air conditioning and heating mainly rely on air convection.

According to the reason of convection, it should be heated from the lower part of the heated liquid or gas. But the function of air conditioner is refrigeration, and the priority is refrigeration. Refrigeration also depends mainly on air convection, which needs to be cooled from above. Considering that people's indoor activities are generally below the height of adults, the air outlet of the cabinet is about the height of an adult, and the wall hanging machine is conducive to the convection of air at the air outlet considering the higher utilization of space. However, heating is beneficial to air convection in the space above the air outlet, so the temperature in the lower space is not as high as that in the upper space.

Heating mainly depends on air convection heat transfer, but the radiator is installed at a low position, and the floor heating is under people's feet. When heating, it is beneficial to the air convection in the human activity area, so the heating effect is better.

I live in Harbin. Let me explain why the north doesn't need air conditioning for heating, but it takes a lot of manpower and material resources for central heating.

Harbin city provides central heating, and the heating cost is 38.32 yuan per square meter. As long as the house is more than 80 square meters, the heating cost is more than 3000 yuan. There is no central heating in rural areas. In winter, we buy our own coal to burn small boilers. My father's family just bought 3 tons of coal last week, and it cost 2850 yuan for 950 yuan a ton. Three tons of coal have to be saved with wood and straw in a winter. If we can burn coal vigorously, it is not enough.

Since it costs so much money, why not use air conditioning? It saves time, effort and money, and is beneficial to the environment. You can understand how cold and long the winter is in Harbin.

1. It's cold in winter in the north, freezing in the cold, dripping into ice, and the temperature must be kept for 24 hours. How cold is it in winter in Harbin? Is the end of 1 1. Today, the highest temperature is MINUS 8 degrees, and the lowest temperature is MINUS 19 degrees. This is just the beginning of winter, and it's not very cold. The coldest is from February, 65438 to February of the following year. The highest temperature is around minus 20 degrees, and the lowest temperature can reach minus 30 degrees. It freezes into ice, just like air conditioning.

At present, most residential areas use geothermal heating, with balanced indoor temperature and lasting heat, and the temperature can be controlled by layers and households. This kind of air conditioner can't be reached, and now most air conditioners will greatly reduce the heating effect below zero, not to mention below MINUS 20 degrees, which basically can't heat and doesn't work at all.

Second, the winter in the north is long, and the heating period lasts for half a year. Winter in Harbin is long, cold and dry, and snow covers the earth for half a year. The heating period starts from 65438 on October 20th of each year/kloc-0 to April 20th of the following year, during which heating shall be maintained for 24 hours. If you turn on the air conditioner 24 hours a day for half a year, don't say that the air conditioner can't stand it, and people's bodies can't stand living under it for a long time. Many people in Harbin also have air conditioners at home, but they only use them in summer.

If you still don't understand, I suggest you come to Harbin to experience the winter in the north, eat popsicles and step on the snow, visit the world of ice and snow, live in a big kang in Xiang Xue and experience the wonderful feeling of indoor and outdoor ice and snow.

Heating in the north has been going on for more than half a year, so we have to heat it every day, otherwise we can't live, and air conditioning is not suitable for heating in the north.

As a person who has worked in the Pearl River Delta and Yangtze River Delta for many years and now lives in a heating area, I will answer this question.

First, the south is wet and cold, and the air conditioner is dry, which is just neutral. The cold weather in the south is only a few days. When I was working in Guangdong, I seldom saw people wearing down jackets. I wear a pair of jeans all the year round What is more exaggerated is that a colleague wears short sleeves all the year round, short sleeves and short sleeves issued by the company. At least I'm wearing long-sleeved trousers and a thicker coat.

In wet and cold weather, turn on the air conditioner when you go back. Because the cold time is short, the time to turn on the air conditioner is not long. The room is air-conditioned, so it is not so cold when you leave the room at night.

Therefore, it is very comfortable to turn on the air conditioner in winter in the south. But not in the north.

Second, the north is cold for a long time, and the northeast is cold for half a year. If the air conditioner is turned on 24 hours a day and every room is turned on, it is a problem whether the air conditioner can withstand it, regardless of the cost. According to experience, if the outdoor temperature is too low, the air conditioner will strike, it will strike, and it will really strike.

Third, the air conditioner is too dry. Air conditioners blow out hot air, which is even worse in the dry north. You can try blowing the plane in your face. The weather is hot and dry.

Fourth, there are so many rooms that it is too expensive to turn on air conditioning in every room. Turn on the air conditioner in which room people are in, so that they don't have to move. When the heating is turned on, every room is at a constant temperature. At home, every corner can move freely.

In fact, heating is a systematic project. There should be a heating company, a main pipeline should be built, and all communities should be connected to the main pipeline. Need personnel to maintain when not in use. The cost is high. As far as I know, the heating companies here are all subsidized by the government, otherwise they will definitely lose money.

Recently, many people in non-heating areas in the south began to spread heating when decorating.

The data obtained from the domestic wholesale platform 1688 this year shows that since June 165438+ 10, the sales volume of radiators in southern cities has increased by 300% compared with the same period of last year.

Therefore, heating in the south, a big bill of 400 billion yuan, can be expected in the future.