According to the investigation, in the past many water heater casualty accidents, the causes of the accidents are not only directly related to the product quality, but also 80% related to the improper use of the users. In this paper, the use of the gas water heater is explained.

1. As the gas water heater belongs to a special safety product, the fuel (gas) it uses belongs to flammable and explosive gas. If there is gas leakage, if it reaches a certain amount, if it encounters open fire (such as the spark generated by the ignition of the gas stove in the kitchen, the electric lamp of the range hood, the start of the electric equipment such as the electric ice box, etc.), it will explode or explode, resulting in Fire and other accidents. Therefore, in addition to strictly checking the tightness of products and pipe joints when installing gas appliances, users should also pay attention to:

(1) When the water heater is not used for a long time, the valve of the gas pipeline in front of the water heater shall be closed;

(2) When the gas path of water heater is connected by rubber pipe, check whether the rubber pipe has cracks. It is better to replace it once every two years or so;

(3) Due to the peculiar smell of gas, when the user feels such smell, it indicates that there may be air leakage. At this time, do not start any electrical equipment artificially. Open the doors and windows in time, close the main gas valve, check the air leakage point. If the problem cannot be solved by himself, find the relevant service department to solve it as soon as possible.

2. After the gas is completely burned, theoretically, carbon dioxide and water vapor will be produced, but in fact, a small amount of carbon monoxide will be produced. Carbon monoxide is a toxic gas. During normal combustion, the amount of carbon monoxide in the flue gas is very small, only about 0.01%. After entering the atmosphere, its content will be relatively low, which will not cause harm to human body. However, when the concentration of carbon monoxide reaches a certain level, people will be poisoned, light people will be dizzy, vomiting, and heavy people will lead to death. How to control the increase of carbon monoxide concentration? First of all, the product quality of the water heater must be guaranteed. From the perspective of the quality of the gas water heater produced at present, the carbon monoxide produced by its combustion is generally low, which can ensure personal safety. But more importantly, it is necessary to ensure that the ambient air flow of the water heater is good, so that the outdoor fresh air can be supplemented in time, and the exhaust gas such as carbon monoxide and carbon dioxide produced by the combustion of the water heater can be discharged to the outdoor in time. Therefore, no matter which type of gas water heater is used, it is necessary to pay attention to the ambient air flow when using.

3. When using the water heater in summer, due to the high temperature of the tap water, the water temperature regulating device of the water heater may not be able to adjust to the appropriate outlet temperature, and the temperature of the hot water may be too high. At this time, the gas valve in front of the water heater can be properly turned down to ensure the appropriate outlet temperature, so as to avoid scalding caused by the high water temperature.

4. In the cold area in the north in winter, the internal water system of the water heater may freeze. When the water heater is not used for a long time, the residual water in the water heater shall be discharged in accordance with the instructions.

5. The product manual of gas water heater has very detailed safety and operation instructions, which should be read carefully and used correctly according to the requirements to ensure the safety of large users.

We will analyze the safe use of the water heater from its structural type as follows:

Since the 1990s, due to the direct discharge of the flue gas from the direct discharge water heater in the room, it is easy to cause danger, and its water output is small, generally only about 5 L / min, which can not meet the requirements of people's bathing water volume. Especially in the Yangtze River Basin where there is no heating and the temperature is low in winter, the demand for large flow water heaters is relatively large, so the flue water heaters are produced It's growing very fast. The flue water heater solves the shortcomings of the direct discharge water heater in water quantity and water temperature, and improves the exhaust gas, which is directly discharged from the flue gas to the outdoor. However, there is no special regulation on the installation of flue water heater in the architectural design of our country at present. Therefore, the majority of gas industry workers can not solve this problem after years of efforts. For example, the height of the installed flue, the problem of back wind, etc. As a result, most users can not install the flue, but do not install the flue at all, and use it as a direct exhaust type. Due to the large amount of water and smoke, the danger is not solved, but more unsafe.

In order to solve the safety problems of water heaters, in addition to the promotion of the installation and ventilation of the above two types of water heaters, the gas appliance industry is vigorously promoting the use of forced exhaust and forced exhaust gas water heaters. At the same time, it has developed from abroad