科普 | 冬季居家取暖，这些细节要注意

Core Viewpoint - The article emphasizes the importance of safety during the heating season in China's central and eastern regions, highlighting the risks associated with various heating appliances and the need for proper usage and maintenance to prevent accidents [1]. Group 1: Electric Heating Appliances - Electric heating devices such as electric blankets, electric water bags, and "little sun" heaters are essential for many households during winter, but improper use can lead to safety hazards [2]. - Electric blankets typically have a safe usage lifespan of about 6 years; after this period, the risk of electric leakage and short circuits increases significantly [2]. - It is recommended to check the power cord, plug, and temperature controller of electric blankets before first use each year, and to disconnect power when not in use [2]. - Electric water bags should be replaced every 1 to 2 years, and users should be cautious of older models that may pose explosion risks due to direct contact of electrodes with liquid [3]. - "Little sun" heaters can reach surface temperatures of nearly 600 degrees Celsius, necessitating careful placement away from flammable materials and regular checks for damage [3]. Group 2: Gas Safety - The use of gas in winter poses risks due to low temperatures and increased usage frequency, which can lead to gas leaks and carbon monoxide poisoning [5]. - Residents are advised to use metal corrugated pipes for gas connections and regularly check for leaks using soapy water [5]. - Installing gas alarms can help detect low concentrations of combustible gases and prevent potential explosions or fires [5][6]. - Proper gas usage methods include ensuring ventilation when cooking or using gas water heaters and following the "light first, then open gas" principle to prevent gas leaks [7]. Group 3: Coal Stove Safety - In rural areas and high-altitude regions, reliance on coal stoves for heating can lead to fire hazards and carbon monoxide poisoning due to poor ventilation [9]. - It is crucial to install coal stoves away from flammable materials and ensure proper ventilation during use [9][10]. - Users should purchase quality coal from reputable sources and avoid burning wet or garbage materials, which can produce toxic gases [10]. - Maintaining a proper airflow by keeping windows slightly open during coal burning is essential to prevent gas accumulation [10].