通过使用能源部（DOE）测试程序，将预测的节能结果与计算的年运行总成本预测的成本节约进行比较，证明了熔炉能效的三种测量方法的有效性。能源部目前规定的两项效率指标——年度燃料利用效率（AFUE）和能源部能源系数（EF）与行业建议的能源系数——季节性能源利用系数（SEUF）进行了比较。还演示了影响SEUF的各种参数。其中包括功率额定值（瓦数）、燃烧器输入额定值、电力与化石燃料成本比的影响，以及年度燃料利用效率（AFUE）的影响。 引文:研讨会，ASHRAE交易，第95卷，pt。1989年，芝加哥

The effectiveness of three measures of energy efficiency for furnaces has been demonstrated by comparison of the resu/ts for predicted energy savings against the cost savings predicted by the calculated total annual cost of operation using Department of Energy (DOE) test procedures. Two of the efficiency measures currently prescribed by the DOE--the annual fuel utilization efficiency (AFUE) and the DOE energy factor (EF) are pared with an industry-proposed energy factor--the seasonal energy utilization factor (SEUF).Various parameters that affect the SEUF have also been demonstrated. These include the effects of power rating (wattage), burner input rating, electric to fossil fuel cost ratio, and the effect of annual fuel utilization efficiency (AFUE).