Compared with that of the box type heaters, the mean h eat efficiency of the heat medium heaters is improved by 24.15%, and the consump tion of the fuel oil is reduced by 24.18%.

• 热媒炉与方箱炉使用情况的对比分析表明 ,热媒炉平均热效率提高了 2 4 15%25 ,耗油量降低了 2 4 18%25。