1.super energy saving 2.Symmetrical room temperature 3.Longer working time 4.Operate easily 5.Heat efficiency up to 90% JML-D2 SERIES FULL-AUTOMATIC COAL-FIRED HOT AIR GENERATOR(LIVESTOCK)50-100-200 thousand calorie1.super energy saving ,sky-high heat utilization. It burns semi-bitummous coal about 12-15 kg/hour.2.Symmetrical room temperature,the whole temperature difference of a standard hen- ...