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option 1: Two seperated furnances and seperated control& K4 b. A8 e3 J- s7 P) H5 p
(for big house > 3000 ft)+ Y7 t, g% g! ^: s
option 2: One furnance with Zone Control device , ^1 ~3 d, H" f3 K# H' A
(three zones or fours zone will be good) - total efficiency will be higher / H8 q7 j) w+ G& x$ V1 V/ I9 y4 S4 O. T
Total cost is not big difference.
Zone Control device, 会不会象他们说的,互相影响呢? 如果房子盖好后,再自行安装,容易实现吗?3 _2 L/ h5 x# l7 _0 u
# f7 c/ z0 @# I1 H' j + a: T6 R3 [% _* woption 1: Two seperated furnances and seperated control( M: P) _8 U S
(for big house > 3000 ft)3 W- j- g4 Q' Z H" M
option 2: One furnance with Zone Control device 9 F4 q: H3 h/ ~" i (three zone ... 7 O2 J- L! T+ }7 s' `0 W- l: Z十年移民路_ 发表于 2011-3-29 06:36 [/quote]