我国农村能源严重短缺,同时浪费极大,燃料利用效率很低。多少年来,广大农村延习使用旧式传统炉灶和火炕,直接燃烧生物质能,热效率一般仅有10％左右。全国每年烧掉大约5400亿斤秸秆和3000亿斤薪柴。因此,抓好改炕改灶工作是一项花钱少、见效快、深受千家万户欢 China’s rural energy shortage, while a great waste of fuel efficiency is very low. Over the past few years, the vast majority of rural areas have used old traditional stoves and kangs to directly burn biomass energy, and thermal efficiency is generally only about 10%. The country burns about 5400 million kilograms of straw and 300 billion kilos of firewood every year. Therefore, do a good job of changing the kang to change the stove is a less expensive, quick, deeply loved by thousands of households