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.

• 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。