sam2010 发表于 2016-5-31 11:28/ b2 l- D7 a# B a6 w
it depends on the capacity of the furnace. D0 a0 i- D2 s# z7 G! N. w# c% |" `
a furnace with 3000 cfm blower, 100mbh or above gas inpu ...
3 n' G( ]# c- l% Z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?$ x) u% m0 r0 L( G. Z9 h