Core Viewpoint - The Shandong Provincial Market Supervision Administration has released the results of the 2024 provincial special supervision and spot check on the quality of indoor heaters, indicating compliance and non-compliance issues among various products [4][5]. Group 1: Inspection Results - A total of 20 batches of indoor heater products were inspected in the 2024 seventh batch of provincial special supervision and spot checks [4]. - One batch from Shijiazhuang Century Hualian Supermarket Co., Ltd. was found non-compliant, specifically regarding power connection and external soft wire [5]. Group 2: Compliance Standards - The inspection was conducted based on standards such as GB4706.1-2005 and GB4706.23-2007, focusing on various safety and performance criteria including electrical strength, leakage current, and mechanical hazards [4]. Group 3: Consumer Guidance - Indoor heaters are popular for their quick heating, convenience, and safety, with various types available including liquid-filled, fan, radiant, convection, and panel heaters [6]. - Consumers are advised to check for the "CCC" certification mark, select appropriate types based on room conditions, and choose suitable specifications according to room size [6][7][8][9][10][11][12].

Product Overview and Industry Distribution - Indoor heaters, commonly known as heating appliances, include types such as oil-filled heaters, far-infrared heaters, PTC warm air fans, and halogen tube heaters, all of which require CCC certification [3][4] - Oil-filled heaters typically cost between 400 to 500 yuan and are suitable for use in living rooms, bedrooms, and hallways, especially in homes with elderly or children [3] - Far-infrared heaters are less common in the market, priced around 100 yuan, and are used for localized heating [4] - PTC warm air fans range from 200 to 600 yuan and are ideal for portable home heating due to their quick heating and automatic temperature control features [4] - Halogen tube heaters are priced between 100 to 200 yuan and are effective for personal heating in small rooms [4] - Jiangsu province has about 40 indoor heater manufacturers, primarily small to medium-sized enterprises, with 8 certified companies in Suzhou, of which only 3 are currently operational [4] Inspection Basis and Key Projects - The quality supervision inspection is based on GB 4706.1-2005 and GB 4706.23-2007 standards, focusing on safety and specific requirements for indoor heaters [5] - Key inspection items include protection against electric shock, input power and current, heating performance, leakage current, moisture resistance, mechanical strength, and grounding measures [5][6] Supervision Inspection Results - A total of 15 batches of indoor heaters were inspected, with 2 batches found to be non-compliant, resulting in a non-compliance rate of 13.3% [5] - Specific non-compliance issues included inadequate protection against electric shock, discrepancies in input power and current, structural design flaws, unreliable power connections, and grounding issues [6][7][8][9][10]