Gas furnaces - Energy Efficiency Regulations
[摘要] Gas furnace, an automatic operating gas-fired central forced air furnace that uses propane or natural gas and has an inpu……
[发布日期] 2017-11-05 [发布机构]
[效力级别] Codes and standards [学科分类] 能源（综合）
[关键词] Building technologies;Building systems;Space and water heating tech;Conventional gas boilers;Gas heat pumps [时效性] Effective
