An additional advantage is that the solar air heater will continue to work for some time after warranty also, and even for more years if it is properly reconditioned.
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- 另一个额外的优势在于,太阳能空气加热器在保修期满了之后,仍然可以正常使用一段时间,甚至,如果得到恰当的维修,可以多用好几年。