请注意:此版本的所有临时修订版将在您购买时提供。固体燃料循环加热设备、热水器和锅炉。1这些要求适用于工厂制造的手动和/或自动燃料固体燃料循环加热设备、热水器和锅炉，如第5节术语表中所定义，拟为固定式非移动设备。1.1修订版，自20121年6月22日起生效。2按照制造商的规定，这些设备用于燃烧固体燃料，如木材、煤炭或任何其他生物质燃料。1.2修订版，自20121年6月22日起生效。3根据NFPA 211《烟囱、壁炉、通风口和固体燃料燃烧设备标准》，这些设备配有整体式烟囱和终端，或用于连接住宅式和建筑供暖设备或建筑供暖设备的烟囱，并按照国家电气规范ANSI/NFPA 70进行安装； 以及适用的国际机械规范（ICC）、国际居住规范（ICC）和统一机械规范（IAPMO）。1.3修订版自2012年6月22日起生效

Please note: All interim revisions for this edition available at time of your purchase will be included.Solid Fuel-Fired Hydronic Heating Appliances, Water Heaters, And BoilersUL 25231 Scope1.1 These requirements apply to factory built manually and/or automatically fueled solid fuel-fired hydronic heating appliances, water heaters and boilers, as defined in Section 5, Glossary, intended to be fixed non-moveable appliances.1.1 revised effective June 22, 20121.2 The appliances are intended to burn solid fuels, such as wood, coal, or any other biomass fuel, as specified by the manufacturer.1.2 revised effective June 22, 20121.3 The appliances are provided with an integral chimney and termination or intended for connection to chimneys for residential type and building heating appliances or for building heating appliances in compliance with the Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, NFPA 211, and intended for installation in compliance with the National Electrical Code, ANSI/NFPA 70; and the International Mechanical Code (ICC), International Residential Code (ICC) and the Uniform Mechanical Code (IAPMO), as applicable.1.3 revised effective June 22, 2012