根据美国住房和城市发展部（HUDcode）规定的联邦先发制人的制造业住房建设和安全标准，美国每年有超过20万套住房由工厂建造。本文分析了国家能源使用和节能潜力，这些潜力来自于热分配系统效率、热封套以及供暖、通风和空调（HVAC）设备的改进，而不是HUD规范目前所要求的。提供了四种情况下当前HUD规范下的预计节能:美国消防协会标准501- 2005年（NFPA 2005）、2006年《国际能源节约准则》（IECC 2006）、美国环境保护局的《能源之星制造住房指南》（EPA 2004）以及基于美国能源部的《美国建筑工业化住房伙伴关系计划——太平洋西北部住宅建设》（BAIHP 2005；NEEM 2004）的最佳实践。通过提高HVAC系统效率，如使用能源之星热泵代替电炉和能源之星空调，还提供了节约估算。从能源成本和能源来源两方面提供能源使用和相关节约。 单位:投资:ASHRAE交易，第113卷，pt。2

More than 200,000 homes are factory built in the United States each year to the federally preemptive Manufactured Housing Construction and Safety Standards, mandated by the U.S. Department of Housing and Urban Development (HUDcode). This paper analyzes national energy use and savings potential from improvements to thermal distribution system efficiency, thermal envelopes, and heating, ventilation and air conditioning (HVAC) equipment over what is currently required by HUD-code. Estimated energy savings over current HUD-code are provided for four cases: National Fire Protection Association Standard 501-2005 (NFPA 2005), the 2006 International Energy Conservation Code (IECC 2006), the U.S. Environmental Protection Agency’s ENERGY STAR® manufactured housing guidelines (EPA 2004), and Best Practice, based on the U.S. Department of Energy’s Building America Industrialized Housing Partnership program home built in the Pacific Northwest (BAIHP 2005; NEEM 2004). Savings estimates are also provided from improved HVAC system efficiencies such as using ENERGY STAR heat pumps in lieu of electric furnaces and ENERGY STAR air conditioners. Energy use and associated savings are provided in terms of both energy cost and source energy.Units: I-P