sam2010 发表于 2016-5-31 11:286 X7 P" Y( X4 v# U1 N/ `& V
it depends on the capacity of the furnace.# B; K3 E, M: a8 N+ q
a furnace with 3000 cfm blower, 100mbh or above gas inpu ...
$ n/ X+ H8 B I9 d" S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? 7 a' L% {7 c2 z0 v- E+ E" ]