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高温加热炉,特别是某些物料的熔融炉,经常在2000°F以上的高温下操作,这就需要极为耐用的热回收器。由于这类炉子的特点关系,要求使用烟气热源达2600°F,并产生1500°F以上的子热空气的可靠热回收器,才能改善这种低效率的炉子。双壳式或笼式的金属辐射热回收装置,能在这样极为苛刻的操作条件下可靠的运行,并能经常的节约燃料可高达50%。这种热回收装置的能力,小的可低至0.5百万英热单位/时,大的可高达
High temperature furnaces, especially those of some materials, often operate at temperatures above 2000 ° F, which requires extremely durable heat recovery. Due to the particular nature of such furnaces, the need to use a reliable heat recovery unit with a flue gas heat source of up to 2600 ° F and producing sub-hot air above 1500 ° F can improve such inefficient furnaces. Bimodal or caged metal radiant heat recovery units operate reliably under such harsh operating conditions and often save up to 50% of fuel. The capacity of this heat recovery unit, small as low as 0.5 million British thermal units / hour, large can be as high as