sam2010 发表于 2016-5-31 11:28/ ?* Y; p. C" w& u& s; c8 a; k
it depends on the capacity of the furnace.0 B F9 H4 b# D8 `
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? 5 v. B4 T+ Q' c