sam2010 发表于 2016-5-31 11:28 " C7 D* n7 z% C0 g0 {& k5 sit depends on the capacity of the furnace.7 l3 c3 b& B8 e& G
a furnace with 3000 cfm blower, 100mbh or above gas inpu ...
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谢楼上的专业解答,你说的跟cmf blower跟那个什么BTU有什么关系吗?9 t ^7 h4 k0 u# G; K2 @+ m