sam2010 发表于 2016-5-31 11:28, Q U; u) K' i( A! N: A
it depends on the capacity of the furnace. 9 [6 ]2 ~; v; H9 W- Ha furnace with 3000 cfm blower, 100mbh or above gas inpu ...
! ^" b) s W9 h% C1 X1 C1 }' P" ]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?! R. ]( W" f. o4 b( }