没到报废年限的燃气具是否需要更换？可从四方面判断

Core Viewpoint - The article emphasizes the importance of assessing the need to replace gas appliances, such as gas stoves and water heaters, even if they have not reached their expiration date, highlighting four key criteria for evaluation [1][2]. Group 1: Criteria for Replacement - The first criterion is functionality; if the gas stove valve does not close properly, there are frequent extinguishments, or the water heater has ignition difficulties and inconsistent water temperature, professional maintenance is advised, and replacement should be considered if issues persist [1]. - The second criterion is the condition of the appliance; a normal gas appliance should have a blue flame, and if the flame is not blue or there is frequent black smoke or a strong odor when using the water heater, it should be immediately stopped [2]. - The third criterion focuses on the appearance; if the main body of the stove is deformed or damaged, or if the piping is severely corroded, immediate replacement is necessary [2]. - The fourth criterion pertains to safety devices; if the flameout protection device fails, which prevents gas leakage after the flame goes out, it poses a risk of explosion and should be replaced [2]. Group 2: Safety and Certification - The article also mentions that there are mandatory certification requirements for gas appliances and water heaters in the country, urging residents to look for the 3C certification mark when purchasing new appliances [2]. - It is recommended to choose appropriate gas appliances based on the type of gas used at home and to have them installed and adjusted by professionals to ensure safety [2].