As for boiler or gas water heater, I recommend gas water heater.
Let's talk about the advantages of using a wall-hung boiler.
1, independent natural gas wall-hung boiler household heating is a favorable supplement to China's heating mode: at present, in the development of urban central heating in China, thermal power plant heating (municipal heating) accounts for 62.9% of the total area of central heating, regional boiler room heating accounts for 35. 1% of the total area of central heating, and others (such as wall-hung boilers, electric heating, and of course, including those burning honeycomb briquettes at home, hehe) account for it. Therefore, although it is only 2%, it is quite critical.
Especially in the Yangtze River valley, it is wet and cold in winter. With the improvement of living standards and the establishment of modern apartments and villas, the market demand will be huge.
A government official once said that wall-hung boiler heating is more economical, energy-saving and environmentally friendly. Wait a minute, I'm not finished. He said that because he compared the wall-hung boiler with the coal-fired boiler.
3. Hanging furnace is more flexible and convenient, which is adopted in many places in Europe and is an advanced independent heating form.
Not only the advantages of wall-hung boilers, but also some disadvantages of wall-hung boilers.
1, the use cost is high: a friend I know uses a natural gas wall-hung boiler for heating, and uses a wall-hung boiler imported from Italy, with a construction area of 70㎡. Last winter, the heating cost equivalent to a heating season was 80 yuan per square meter. Please note that I am talking about the heating fee here, because the wall-hung boiler can also supply hot water, so this fee includes domestic hot water. We can estimate the domestic hot water consumption of this family exaggeratedly, and subtract its cost from the heating cost, so the heating cost of this family should be at least in 60 yuan /m2, while the heating cost of natural gas boiler room in general residential area is currently 30 yuan /m2. The friend said, "As soon as the wall-hung boiler is turned on, the natural gas meter runs very fast. I have turned the fire eyes on the stove at home to the maximum, and I have never heard such a sound! "
2. The service life is unknown: when we move in, the developer will "send" a wall-hung boiler to us. There is a very important question here. How many years can the wall-hung boiler last? Almost all developers will respond positively that 15 years is no problem, and some say at least 20 years! Ladies and gentlemen, so far, no wall-hung boiler has been used for more than 5 years. Some people may say that the quality of wall-hung boilers in Europe should be assured, but what about the quality of natural gas in China? How is the water quality? Can we compare these with Europe? Hehe, assuming that the wall-hung boiler can be used for 15 years, as long as it is 15 years, we will have to invest another sum of money to buy a new wall-hung boiler, which is also a modest expenditure.
3. Impact on the environment: If you have time, you can go to the community where the wall-hung boiler is used. The chimney of the wall-hung boiler must protrude from the kitchen wall of every household. There are as many chimneys as there are families, and we will become people who live in chimneys! You can imagine how many hours each chimney will "work" in winter, and what kind of harm will it cause to the air quality of the community ... Is it a bit alarmist? Isn't there a big chimney in the residential natural gas boiler room? Yes, that's right, but the country has regulations that the chimney emission of boiler room must be higher than the roof, and it should be directly discharged into the air, so as to achieve the function of diffusion through airflow. The exhaust emission of wall-hung boilers can't do this, and it is scattered from the first floor to the top floor. But fortunately, at least natural gas is burning, and it should only produce H2O and CO2, without peculiar smell and toxic gas. Hehe, please experience the gas stove at home yourself.
4. There is also noise pollution: wall-hung boilers generally adopt forced balanced exhaust mode, which is of course realized by fans; Just mentioned that the wall-hung boiler has a forced circulation pump; The flame is burning. Mainly these three noise sources.
5. Potential safety hazard: Objectively speaking, although the gas-fired wall-hung boiler is also a domestic ultra-small boiler, its safety factor is still certain, provided that high-quality products are used. However, there have been safety accidents due to improper human operation, and this thing should be adjusted and controlled anyway.
6. Problems in the first heating season: At first glance, this seems to have nothing to do with the wall-hung boiler, but often the gas use cost in the first heating season will be high. Why? Generally speaking, the occupancy rate in the first heating season is low. Maybe you have checked in, but there are vacant rooms in the front, back, left and right of your house (or the problem of heat transfer between households). There are also new buildings that need more heat to dry, because concrete and other materials still contain a lot of water vapor.