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option 1: Two seperated furnances and seperated control 5 Z# k$ i& s5 K- L$ c$ ` (for big house > 3000 ft)7 j* c$ |' {9 _
option 2: One furnance with Zone Control device 4 `# S2 f. p# W9 m7 b (three zones or fours zone will be good) - total efficiency will be higher( G: L- E$ }$ a, o( b2 y2 y' D8 f, r6 b
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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? . x( F& C2 S$ {2 F, X$ U1 n1 a4 R. W" |. w
; M1 T1 X. m9 ]( m$ g" `0 zoption 1: Two seperated furnances and seperated control5 U8 f3 X: ^( S4 a' t
(for big house > 3000 ft)9 y" c" U2 J% f8 o2 W6 C
option 2: One furnance with Zone Control device : \; o4 d/ E% v- T* Y- e& i8 C (three zone ...8 B( @8 F `* Q4 V
十年移民路_ 发表于 2011-3-29 06:36 [/quote]