sam2010 发表于 2016-5-31 11:28( X( E! s# @# P: U3 Z
it depends on the capacity of the furnace. O" e, ~; n( r; q
a furnace with 3000 cfm blower, 100mbh or above gas inpu ...
2 F+ `5 B' c3 V0 r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? - m; J# f3 g: T7 L/ k. E" E